Contact us now
0420 554 699

Tapes

The Seal of Excellence

tesa self adhesive products are known worldwide for their quality and reliability. The tesa foam tape range is manufactured to perform to a high standard across a wide variety of sealing applications.

Foam tapes can be used to seal out moisture, dust, draughts, fumes, light and insects, eliminate or reduce noise and vibration, provide impact resistance, cushioning and protection, or even out stress on assembled components. This brochure is designed as a guide to selection of the most appropriate foam tape for a particular application.

Flexifoam ® 476 Series Black/White
Premium grade open-cell polyester urethane foam, laminated with an aggresive acrylic pressure-sensitive adhesive. Performance Characteristics:

  • Foam compresses easily, is highly conformable and recovers quickly.
  • Foam will absorb sound and dampen vibration.
  • Adheres easily to a wide variety of surfaces.
  • Available in die-cut pads and gaskets.

Applications:
Sealing concrete form work, dust and insect filter on lights, draught seal on doors and windows, sealing between office partitions and walls or ceilings, dampening vibrations on instrument panels, air-conditioning controls, and interior body panels in the auto industry, vibration dampening in white goods, electric heaters, fans, etc.

Flexifoam ® 476 Series Grey
Economy grade open-cell polyester urethane foam laminated with an aggressive acrylic
pressure-sensitive adhesive.
Performance Characteristics:

  • Foam compresses easily, is highly conformable and recovers quickly.
  • Foam will absorb sound and dampen vibration.
  • Adheres easily to a wide variety of surfaces.
  • Available in die-cut pads and gaskets.

Applications:
Sealing concrete formwork, draught seal on doors and windows, sealing office partitions, dampening vibrations on instrument panels, air conditioning controls, and industrial housings in general.

Durafoam ® 477 Series
Closed-cell PVC/Nitrile foam permanently bonded to a polyester film which acts as a carrier for an aggressive acrylic pressure-sensitive adhesive.

Performance Characteristics:

  • Firm foam with high compression strength and low compression set.
  • Foam has good tear and abrasion resistance.
  • Filmic interliner prevents stretch during application.
  • High strength adhesive sticks permanently to a wide variety of surfaces.
  • Resistance to weathering – suitable for outdoor use.
  • Flame retardant for FMVSS 302.
  • Resistant to petrol and oil.
  • Electrically non-conductive – can be used as an electrolysis barrier.
  • Good resistance to acids, solvents and many chemicals.
  • Available in die-cut pads and gaskets.

Applications:
Sealing electrical enclosures and switch cabinets, ejection rubber on die-cutting forms, sealing industrial access doors and hatches, sealing boat hatches.

Multifoam ® 749 Series
Irradiation cross-linked closed-cell polyethylene foam laminated with an aggresive acrylic pressure-sensitive adhesive.

Performance Characteristics:

  • Firm foam with moderate compression strength and good dimensional stability.
  • P.E. foam contains no plasticisers and can be used in applications where permanent
  • contact with various plastics is required.
  • Resistant to weathering, ageing and fungi.
  • High tack adhesive suitable for many substrates including galvanised steel.
  • P.E. foam is food and water compatible – FDA Approval No. CFR 178.3010.
  • Resistant to oil, petrol, solvents, and many chemicals.
  • Flame retardant in thicknesses of 6mm and greater, non toxic emissions when burnt.
  • Available in die-cut pads and gaskets.

Applications:
Sealing between rigid air-conditioning duct flanges, used as a sealant dam-wall on auto windscreens, sealing motorway acoustic barriers, sealing access panels and doors.

Multifoam ® 749PV2 Series
Irradiation cross-linked closed-cell polyethylene foam flame bonded with a clear P.E. film and laminated with an aggressive acrylic pressure-sensitive adhesive. The tape is self wound without a liner and can be applied directly from the roll.

Performance Characteristics:

  • Firm foam with moderate compression strength and good dimensional stability.
  • P.E. foam contains no plasticisers and can be used in applications where permanent
  • contact with various plastics is required.
  • Resistant to weathering, ageing and fungi.
  • P.E. foam is food and water compatible – FDA Approval No. CFR 178.3010.
  • Resistant to oil, petrol, solvents, and many chemicals.
  • Abrasion resistant P.E. film surface.
  • Smooth, friction free surface.
  • Available in die-cut pads and gaskets.

Applications:
Used as a sealant dam-wall on auto windscreens, sealing access doors and panels, sealing utlilty canopies, and lining chutes to cushion the movement of parts during manufacturing processes.

Permafoam ® 600 Series
Very soft, closed-cell polyvinyl chloride foam which has been cast onto a release coated paper liner and direct coated with an aggressive acrylic adhesive.

Performance Characteristics:

  • Foam compresses easily, is highly conformable and has low compression set.
  • Adhesive is repositionable for approx. 30mins. Full adhesive bond is reached approx.
  • 48 hours after application
  • The foam is resistant to U.V., Ozone, Oxidation and fungi.
  • The foam is applied “adhesive first” from the roll leaving the paper liner in place on the
  • non-adhesive surface of the foam to prevent stretch and protect the foam surface.
  • The liner can be stripped after the foam has been applied.
  • Available in die-cut pads and gaskets.

Applications:
Sealing concrete formwork, sealing between the door and window frames and profiled aluminium cladding of caravans and portable buildings, sealing around stainless steel sinks and hatchery doors, prevents breakage of fibreglass skylights during installation when applied to roofing purlins.

Permafoam ® 601 Series
Soft closed-cell polyvinyl chloride foam which has been cast onto a release coated paper liner and direct coated with an aggressive acrylic adhesive.

Performance Characteristics:

  • Foam compresses easily, is highly conformable and has low compression set.
  • Adhesive is repositionable for approx. 30mins. Full adhesive bond is reached approx.
  • 48 hours after application
  • The foam is resistant to U.V., Ozone, Oxidation and fungi.
  • 601 Series black is flame retardant to FMVSS 302.
  • 601 Series black complies with auto industry standards.
  • The foam is applied “adhesive first” from the roll leaving the paper liner in place on the
  • non-adhesive surface of the foam to prevent stretch and protect the foam surface.
  • The liner can be stripped after the foam has been applied.
  • Available in die-cut pads and gaskets.

Applications:
Sealing between logs in log homes. Sealing fluorescent light fittings against ingress of dirt or insects. Sealing electrical panels in petrol pumps, used as a secondary seal in domestic glazing. Vibration dampener on auto weather shields. Sealing between aluminium annexes and caravans.

Permafoam ® 602 Series
Medium-hard closed-cell polyvinyl chloride foam which has been cast onto a release coated paper liner and direct coated with an aggressive acrylic adhesive.

Performance Characteristics:

  • Moderate resistance to compression, is highly conformable and has low compression set.
  • Adhesive is repositionable for approx. 30mins. Full adhesive bond is reached approx.
  • 48 hours after application
  • The foam is resistant to U.V., Ozone, Oxidation and fungi.
  • The foam is applied “adhesive first” from the roll leaving the paper liner in place on the
  • non-adhesive surface of the foam to prevent stretch and protect the foam surface.
  • The liner can be stripped after the foam has been applied.
  • Available in die-cut pads and gaskets.

Applications:
Sealing exterior mounted air-conditioning fan units on walls or roofs. Sealing electrical access panels on industrial machinery and controls. Sealing electrical cabinet doors. Sealing housings on commercial refrigeration motors and fans. Used as a secondary seal in domestic glazing. Used as a die-cut corner seal in domestic windows. Sealing under glass stove-tops. Used to reduce vibration noise in aluminium boats.

Permafoam ® 604 Series
High density closed-cell polyvinyl chloride foam glazing tape with a direct coated aggressive acrylic adhesive seal on both sides.

Performance Characteristics:

  • Good compression resistance, highly conformable and low compression set.
  • The foam is resistant to U.V., Ozone, Oxidation and fungi.
  • Permanently elastic adhesive* prevents flanking ie. stops water passing between the foam
  • and glass or aluminium window frame.
  • Resistant to temperature variations ie. will not run or ooze at elevated temperatures or stiffen
  • and embrittle at low temperatures.
  • Good thermal insulation properties.
  • Ideally suited for die-cut gaskets to seal the corners of window frames.
  • The foam is swirl-free and can be drilled or screwed through.
  • Compatible with silicone, polyurethane, and small joint sealants.

Applications:
An approved primary glazing seal for domestic and commercial glazing systems.
*604 Series is not suitable for bonding or mounting applications.

Durafoam ® 5060 Series
Closed-cell PVC/Nitrile foam laminated to a filmic interliner which acts as a carrier for an aggressive acrylic pressure-sensitive adhesive.

Performance Characteristics:

  • Foam compresses easily, is highly conformable and recovers quickly.
  • Filmic interliner prevents stretch during application.
  • Robust foam is tear and abrasion resistant.
  • Electrically non-conductive – can be used as an electrolysis barrier.
  • Good resistance to high temperature.
  • Good resistance to weathering.
  • Good thermal insulation properties.
  • Flame retardant to FMVSS 302, UL94-5VA, 5VB, HF-1, V0 and self extinguishing.
  • Available in die-cut pads and gaskets.

Applications:
Sealing electrical enclosures and switch cabinets, sealing industrial access doors and hatches, sealing hatches on boats, sealing externally mounted air conditioning equipment, pipe-wrap insulation of hot and cold pipes.

Durafoam ® 6110 Series
Closed-cell E.P.D.M. rubber foam permanently bonded to a polyester film interliner which acts as a carrier for an aggressive acrylic pressure-sensitive adhesive.

Performance Characteristics:

  • Firm, fine cell foam with good compression strength and low compression set.
  • High-strength polyester interliner provides good dimensional stability.
  • Very high strength adhesive sticks permanently to a wide variety of surfaces.
  • Ideally suited to die-cutting due to good dimensional stability and high quality
  • paper liner.
  • Good resistance to high temperature.
  • Resistant to weathering – suitable for outdoor use.
  • Electrically non-conductive – can be used as an electrolysis barrier between
  • dissimilar metals.
  • Compatible with silicones.
  • Low in migratory plasticisers (plastic compatible).
  • Non toxic and flame retardant (FMVSS 302).
  • Food and water compatible FDA approval to section 177.26
  • (non-poisonous, non-carcinogenic).
  • Complies with automotive industry standards.

Applications:
Sealing electrical enclosures and switch cabinets, sealing exterior and interior lighting, sealing industrial access doors and hatches, sealing hatches on boats, sealing domestic and commercial glazing systems, sealing externally mounted air conditioning equipment.

Durafoam ® 6111 Series
Closed-cell Neoprene rubber foam permanently bonded to a polyester film interliner which acts as a carrier for an aggresive pressure-sensitive adhesive.

Performance Characteristics:

  • Firm foam with good compression strength and low compression set.
  • High strength polyester interliner provides good dimensional stability.
  • Very high strength adhesive sticks permanently to a wide variety of surfaces.
  • Ideally suited to die-cutting due to good dimensional stability and high quality paper liner.
  • Resistant to weathering – suitable for outdoor use.
  • Low in migratory plasticisers (plastic compatible).
  • Flame retardant to FMVSS 302.
  • Resistant to petrol and oil.
  • Complies with Automotive Industry Standards.

Applications:
Sealing electrical enclosures and switch cabinets, sealing exterior and interior lighting, sealing industrial access doors and hatches.

Tapes for the Glazing Industry

New technology provides improved, reliable and economical sealing methods
The rapid advancement in modern window designs and installations requires the latest technology to ensure positive and reliable seals in glazing. Traditional methods which incorporate putties, caulks and mastics have proven to be unreliable. tesa have developed a range of “dry” easy to apply, self-adhesive foam sealants which provide a higher performance weather seal than traditional methods. tesa tapes also eliminate the time consuming clean-up problems experienced with those outdated systems.

The development of the world’s fi rst self-adhesive tape by Paul Beiersdorf in 1897, heralded the start of a silent revolution in many industries. The continual dedication to innovative product development has resulted in a range of over 600 tesa products for industry, trade and domestic uses.

tesa tape Australia Pty Ltd., the Australian extension of tesa SE, markets an extensive range of self-adhesive foam glazing sealants. The tesa Division provides tesa glazing foam with adhesive on either one or both sides of the foam. The products are suitable for use either as primary glazing seals or secondary “back-up” seals and fi nd many applications both in the domestic and commercial glazing industries.

The prolifi c variety of frame/sash/glass combinations in the Australian glazing industry has created the necessity for a highly diverse range of sealants. tesa supplies products from 1.6 to 19 mm thick in widths from 6 to 1448 mm.

Domestic Glazing Tapes
To seal between the glass and aluminium frame of fixed lights in domestic windows, tesa PVC foam tape coated with adhesive on one side is recommended as a secondary seal.

The 1.6 mm thick Permafoam PVC 60202 in black or grey is ideal for this application. Widths between 6 and 12 mm are suitable for most glazing legs.

Normally applied to the internal side of the assembly the foam tape assists in preventing the ingress of water and drafts while also allowing pressure to be maintained on the external wedge or bead.

Reglazing is also made easy since the foam tape is adhered to the frame only. tesa Permafoam PVC 60202 and 60402 are also used in the form of diecut gaskets to seal corner or transom joints in window frames. A corner joint sealed with tesa foam tape is easier to assemble and neater than a joint sealed by gunnable small joint sealants. Another feature of tesa foam tape is that the joint can be disassembled easily should refabrication be required.

604 Series tesa double sided high density PVC foam tape is used in glazing domestic windows in areas where a high performance, completely weatherproof primary seal is required. It is ideal for fixed bottom lights, for example, where drain holes cannot be incorporated into the design of the frame.

tesa 604 Series fully complies with AAMA 810.1-85 and glazed units in which 604 Series has been used as a primary seal have been tested and found to meet the requirements of AS2047-1977 code for aluminium windows.

Fixing of Colonial bars
The popularity of colonial bars in the domestic window market had presented a number of problems in fixing the aluminium or steel bars to the window glass.

A simple, quick, economical and clean solution was the introduction of tesa 4952, a highly conformable foam mounting tape with a long lasting acrylic adhesive. To take full advantage of tesa 4952, the bar should be designed with a fl at section to allow full contact with the self-adhesive foam tape which is applied to the bar first. The bar is then positioned on the glass and pressed firmly to allow any air trapped between the bar and the glass to be squeezed out.

This exclusion of air is important as air pockets can cause dislodgement of the bar should it be subjected to high temperatures at a later stage.

Commercial Glazing Tapes

The commercial or industrial glazing industry is more varied in styles and types of window and door designs than the domestic glazing industry. This includes both glazing of low-rise such as shop-fronts, and a greater degree of high-rise glazing such as multi-story office blocks. Curtain-wall construction has become extremely popular with many new high-rise buildings incorporating this form of architectural design.

Many old buildings are being reglazed with curtain-wall facades to give them a modern appearance. Hence there is generally a need for the glazing seal used in commercial glazing to be designed to a very high performance criteria given the wider extremes of weather conditions likely to be encountered.

Modern technology
With these specifi cations in mind, tesa have developed two highly effi cient tapes which satisfy the demands of modern technology and design. tesa EPDM rubber 6110 Series single sided foam tape and high density PVC 604 Series double sided foam tape are both designed to tightly controlled specifi cations and perform to the highest quality standards. Many commercial glazing applications can be sealed
completely using tesa 604 Series as an external primary seal and tesa 6110 Series as a secondary “back-up” seal, on the inside of the glass. tesa 604 Series – Designed specifi cally for commercial
and domestic glazing applications where it is used as a primary seal between the glass and the window frame. It fully complies with the American Architectural Manufacturers Association Standard 810.1-85 Type 1 in which testing simulates 20,000 160 kilometre per hour wind gusts with alternating rain and heat cycles performed on an aluminium framed window with 3.9 square metres of 6 mm glass.

The tape is applied easily by hand from the roll where a paper liner protects the acrylic adhesive until the tape is in place. Once applied there is no oozing even under extreme expansion and contraction of the window glass and frame as the high density closed cell PVC foam is self shimming. Glazing is made clean, quick and reliable. Four thicknesses are available. 1.6, 3.2, 4.8 and 6.4 mm, while any width from 6 to 686 mm can be custom slit.

When compared with the more traditional butyl strip sealant, tesa 604 Series has several advantages:

  1. It is “self-shimming”, has a powerful adhesive on both sides, and will not run or ooze under high temperature conditions which means that it will not “pump” or “walk” out of the glazing channel.
  2. The edge is “dry” and will not pick up dust, dirt, insects or metal or wood swarf during storage or handling.
  3. It is easier to use because:
  4. the paper liner is fl ush with the edge of the foam allowing easier alignment on the glazing leg,
  5. the foam can be either hand torn or cut with scissors,
  6. longer roll lengths are available.
  7. tesa 604 Series requires less storage space and is packed with silicone paper interleavers between the rolls to prevent the rolls from sticking together.

Commercial Glazing Tapes
tesa 6110 Series – Made from heavy duty EPDM rubber foam and designed to retain it’s properties even when subjected to extreme weathering. It has high resistance to both UV and ozone and is the ideal “backup” partner for tesa 604 Series.

Available in seven thicknesses – 1.6, 3.2, 4.8, 6.4, 9.5, 12.7 and 19 mm it can be custom slit to any width from 6 to 1331 mm. The wide range of sizes of both 604 Series and 6110 Series allow tesa tapes the flexibility required to solve most glazing seal problems. Although both tapes are 100% watertight at less than 10% compression, tesa recommends that they be compressed by 25% to allow for fluctuations in the width of the glazing channel caused by variations in weather conditions to which the glazed unit may be subjected. For example, excessive wind buffeting can result in further compression of either the primary or secondary glazing seals and consequent variations in the width of the glazing channel.

Therefore, if the glazing channel or rebate is 14 mm wide and the glass is 6 mm thick the external primary seal should be 60405 (4.8 mm thick) and the “back-up” seal should be 61104 (6.4 mm thick).

General precautionary application measures for tesa 604 Series
Good glazing practice requires that precautionary measures be taken to ensure the integrity of a properly designed system.

  1. Mating surfaces; i.e. rabbet face and glass, should be thoroughly cleaned just prior to applying the tape, preferably with clean solvent.
  2. Glazing should be done at ambient temperatures above 4.5OC to minimise the effect of moisture condensation on the substrate. If it is necessary to glaze at temperatures less than 4.5OC the surfaces should be solvent wiped immediately prior to tape installation.
  3. The tape is applied to the substrate and pressure applied as it is unrolled to eliminate the possibility of forming air pockets. Air pockets beneath the tape are difficult to remove and result in reduced adhesion surface area.
  4. Tape is not applied around corners. Lengths of tape are applied to each leg and butted at each corner. Corners must not be overlapped, if tape thickness is more than 1.6 mm. Liquid sealant is applied to each butt joint to eliminate the possibility of leakage.

Commercial Glazing Tapes

Compatibility with gunnable silicones:
All tesa double sided foam tapes and single sided foam tapes, are compatible with silicones commonly used in the glazing industry (e.g. Dow Corning 795, 999A etc.)

Compatibility with gunnable urethanes:
All tesa foam tapes are compatible with urethanes commonly used in the glazing industry (e.g. Sikafl ex). tesa tape Australia can provide full detailed compatibility test data for each tesa foam tape with gunnable silicones and urethanes.

Window Frame Protection Tapes

tesa 51008PV3 :
Manufactured with a tough, tear and scuff resistant polyethylene fi lm backing, tesa 51008PV3 black protection tape is ideal for protecting anodised or powder-coated aluminium window frames. Outdoor storage of the window frame is possible because 51008PV3 is UV resistant for 12 months. The tape has good conformability and adheres well to complex shapes. A perfect balance between adhesion and release coat allows tesa 51008PV3 to be easily unwound and applied in both narrow width rolls and wide rolls.

tesa 51485:
Manufactured from tough, fl exible, black plasticised PVC fi lm, which provides very good conformability to many window extrusion designs. The low tack adhesive removes cleanly from the window frame. The tape also exhibits low curl characteristics when unwinding, which allows easy application in long strips.

tesa 4848PV1:
this low tack, transparent, UV resistant fi lm tape is ideal for the protection of window glass. It is available in widths up to 1240mm and can be unwound easily and applied to large areas.

Structural Glazing Spacer Tape

Structural Glazing and Cladding
The current popular architectural look is one of smooth clean lines which is easily achieved through structural silicone glazing techniques. Facade panels vary in type from glass to granite and are “glued” in place with silicone. tesa 5195 PV3 Series high density polyurethane foam tape with adhesive both sides is designed for use in the assembly of structural panels. The tape is first applied to the metal panel frame. Once in place the blue filmic release liner can be stripped and the cladding applied. The resultant void between the frame and cladding can then be gunned with silicone. Open cells in the foam then allow air and moisture to reach the silicone to speed the curing process. 5195 PV3 Series is chemically compatible with all major silicone systems and the high compression resisitance of the foam ensures consistent thickness of the silicone bead while forming an excellent thermal barrier to minimise heat transfer.

Application details
We recommend the following steps be followed when using 5195 PV3 Series tapes:

  1. Mating surfaces, i.e.: metal frame face and panel surface, should be thoroughly cleaned just prior to tape application.
  2. All mounting surfaces should be flat, smooth and parallel to one another.
  3. Ideal ambient application temperatures are above 15oC. The product should not be used at
  4. Do not strip the liner from the tape until ready to apply the second substrate surface.
  5. Once all components are in place a final check of the spacing height and bite depth are advised before the silicone is gunned so that the silicone dimensions are in accordance with the manufacturer’s recommendations.

Tapes for Air Conditioning

This guide to the use of tesa self-adhesive tapes in air-conditioning applications has been designed to help air-conditioning manufacturers and installers, as well as insulation contractors, take advantage of the ease of use of tesa tapes and provide some basic criteria for selection of the most suitable tape for each particular job.

The air-conditioning tapes featured in this brochure are :

  • 749 Series – Flange Sealing Tape
  • 4258 – PVC Joining Tape
  • 51495 – Reinforced Aluminium Foil Duct Tape

749 Series Flange Sealing Tape
For sealing joints in sheetmetal duct systems tesa 7493 6mm thick self adhesive polyethylene foam tape can be used in 18mm wide on 35mm flanges and in 12mm wide on 23mm flanges. On ductwork less than 600mm wide tesa 7496 5mm thick P.E. foam tape can also be used, however, it may be necessary to use intermediate clamps on the flange to effect an airtight seal.

4258 PVC Joining Tape
tesa 4258 soft PVC joining tape with it’s good conformability and powerful adhesive is ideal for fi xing and sealing flexible air-conditioning ducting onto both the sheetmetal duct air outlet and the ceiling grille in non-critical areas where a non-flame retardant product is required.

51495 Reinforced – Aluminium Foil Tape
tesa 51495 is used for joining and sealing foil faced duct insulation on both sheetmetal and fl exible ducting. The polyethylene scrim reinforcement imparts good tear resistance to the tape while the aluminium foil surface is flame retardant to AS1530 Part 3 and provides a barrier that will stop moisture from penetrating the underlying insulation material.

Tapes for Building & Construction

tesa manufactures a wide rage of self adhesive tapes that can be used for many different applications in all sectors of the building and construction industry, from the construction of domestic dwellings to large civil works projects.

This guide to the use of tesa tape in various applications has been designed to help specifiers and end users take advantage of the ease of use of tesa tapes and provide some basic criteria for the selection of the most appropriate tape for each particular job.

Concreting
Precast/On-site:
tesa foam tapes are used to seal complex precast moulds. The tapes provide a water barrier to prevent moisture leakage and impart a clean edge to the concrete. Foam tapes are also used to seal on-site formwork.

Tilt – Up:
Double sided tesa tapes provide a quick and accurate method of attaching accessories (eg. ferrules and plastic fillets) to mould table faces.

Civil Works
Bridges/Overpasses:
tesa foam tape is used to seal between concrete planks under the road base prior to the road base concrete pour.

Tunnels:
Various applications for tesa foam tapes during the precasting of concrete tunnel wall sections where voids need to be created.

Water Supply:
tesa foam tapes used to seal reservoir covers and seal sewerage and water pump house roofs.

Air Conditioning
tesa has a specialised range of tapes for sealing rigid galvanised duct sections, sealing fl exible ducting and joining foil faced duct insulation.

Roofing and Cladding
The range of tesa tapes used in roofi ng and cladding applications include foam tapes for sealing behind various types of wall cladding, thick PVC insulation tape for the prevention of electrolysis between dissimilar metals and foam tapes for noise reduction under PVC and polycarbonate roof sheeting.

Glazing and Windows
Fenestration:
Both domestic and commercial windows can be sealed with tesa foam glazing tapes. The wide range of thicknesses from 1.6mm to 19.0mm are suitable for sealing most glass and frame combinations.

Corner Seals:
tesa foam tape can be die-cut and used as a convenient way to seal the corners of fabricated aluminium window frames. tesa can supply products for both light weight domestic windows or heavier commercial windows.

Protection of Windows:
It is often necessary to protect windows on-site from damage caused during other processes such as plastering or cement rendering. tesa has protection tapes to cover both the window frame and complete glass area.

Tapes for Concreting and Civil Works

Sealing Concrete Formwork
Where an “A” grade fi nish has been specifi ed on concrete edges, tesa 476 Series open-cell foam tape or 600 Series closed-cell foam tape can be used to seal between form boards and impart a
clean edge to the set concrete.

The comprehensive range of foam thicknesses from 3mm up to 12mm of tesa 476 Series and 600 Series ensures suitability for most jobs. The aggressive adhesive systems employed on tesa foam tapes will adhere to many substrates including timber, plywood, metal, plastic and fibreglass.

Sealing Precast Concrete Moulds
When precasting concrete into complex shapes, it is important to seal the moulded formwork to prevent moisture loss and create clean edges on the fi nished concrete. tesa 602 Series PVC foam tape is the ideal sealing medium since it is easy to use, highly conformable and robust.

Bridge Construction
Concrete in the form of precast planks is used to form the roadway base for bridges or overpasses. Before the planks are butted into position, strips of tesa 601 Series PVC foam tape can be attached to
the top edges of each plank to form an effective seal to prevent the escape of concrete slurry during the subsequent in-situ concrete pour.

601 Series can also be used at the end of each plank to seal between the plank and the wall adjacent to the sill beam on which the planks are rested.

Pumping Station Construction
On a smaller scale, foam tape can also be used to seal between lightweight concrete roof beams during the construction of water supply and sewerage pumping stations.

Tunnel Construction
During the precasting of concrete tunnel wall sections, it is often necessary to create voids in the concrete for the later installation of fixtures.

tesa 749 Series foam tapes when positioned on the precast mould surfaces prior to pouring, provide an easy, low cost method of void creation.

During outdoor storage of concrete tunnel sections tesa 51485 PVC protection tape is suitable as a weather strip to prevent premature activation of moisture sensitive rubber segment seals.

Fixing of Formwork Accessories to Precast Concrete Moulds
The development of tesa double-sided tapes for attaching various formwork accessories to precast mould table or bed faces has enabled precast concrete manufacturers to extend the life of the moulds and increase the flexibility of mould designs.

tesa double-sided tape 4964 is suitable for attaching decorative architectural trims eg. for dummy joints, window box formwork and polystyrene voiding on factory precast moulds. The tapes ability
to adhere well and be removed cleanly, despite the use of mould release agents, makes it an ideal replacement for traditional mechanical fixing methods.

The main advantage of using tesa 4964 is that no holes are required to be drilled through the mould table face thus allowing the mould to be reused even if the precast design is modifi ed. For attaching
ferrule positioning plates to moulds tesa 4952 double-sided foam tape is ideal and can be die-cut to the exact shape and size of the base of the positioning plate.

Reservoir Covers
tesa 6110 Series EPDM foam tape is ideal for lap sealing of reservoir cover sheeting due to it’s excellent weathering characteristics and resistance to water penetration.

Joining Concrete Film Underlay
The tesa range of builders fi lm joining tapes is suitable for fi lms from 50 micron to 300 micron thicknesses as well as heavier reinforced films. tesa 4050 silver PVC joining tape is ideal on lighter films used in less demanding areas where economy is a priority while for jobs where outdoor exposure is encountered or where worksites are subject to heavy foot traffi c tesa 4170 heavy duty black polyethylene tape is more suitable.

For the joining of heavier textile reinforced films in demanding conditions 60900 tesa Butylbond should be used. This double-sided rayon fabric tape has a thick poly-isobutyl adhesive that not only joins the underlay but also forms an effective moisture barrier.

Tapes for Roofing and Cladding

This guide to the use of tesa self-adhesive tapes in roofi ng and cladding applications has been designed to help roofi ng and cladding installers take advantage of the ease of use of tesa tapes and provide some basic criteria for the selection of the correct tape for each particular job.

Skylight Tape 60006
tesa foam tapes can be used to provide impact resistance to continuous fi breglass skylights where the fi breglass comes into contact with roof supports. This application is important during the construction stage of the roof. The foam can prevent fibreglass breakage caused by over-tightening of fixing screws during installation. 60006 super-soft PVC foam skylight tape 6.4mm thick is commonly used; the reverse winding of this tape making it extremely easy to apply.

Where the roof cladding and skylight sections overlap tesa 61102 EPDM rubber foam tape can be used as a water seal.

Isolation Tape 51482
Where dissimilar metals come into contact e.g. aluminium roof cladding attached to steel roof supports, tesa 51482 heavy duty black PVC tape is recommended for use. When applied to the roof support the tape prevents electrolysis due to its high insulation resistance and dielectric breakdown.

The use of 51482 is particularly important in highly corrosive environments or where condensation is present. For the most effective coverage the width of the tape should be 2mm more than the width of the purlin.

6110 Series EPDM foam tape can also be used to prevent electrolysis due to its specially formulated non-conductive carbon black content. The soft foam also reduces roof noise caused by expansion and contraction of metal sheeting.

tesa 6110 Series Foam Tape Weather Seal
With good resistance to weathering and water permeability tesa 6110 Series EPDM foam tape makes an excellent weather seal between wall cladding joints. When applied vertically along the galvanised top
hat section the 61102 black foam provides an aesthetically pleasing fi nish to the facade.

Insulation Joining Tapes 7379 and 51495
When roofs are insulated with a refl ective foil laminate it is necessary to join and seal the laminate sections with a moisture impervious self adhesive tape to minimise the risk of corrosion of the roof cladding caused by condensation. To join fl ame retardant insulation foil tesa recommends aluminium foil tapes 7379 or 51495 (reinforced) since these tapes when tested to AS1530 part 3 have an ignitability index reading of zero.

Purlin Tape 749 Series
This white polyethylene foam tape is designed for use on purlins onto which plastic roof sheeting is installed. The tape prevents heat build-up under the sheeting. Excessive heat can soften some plastics used in the manufacture of transparent or tinted roof sheeting. The foam also reduces squeaking or cracking sounds caused by different expansion and contraction rates between the sheeting and its supporting structure. It also eliminates the possibility of the sheeting bonding to any painted frame sections.