to EN 13108-1 and mastic asphalt acc. Publications listed below form a part of this specification to extent referenced. Contact CRL Customer Service. 2 PVC 2. Visit our Shop Online page to learn more. Bond breaker tape approved by the sealant manufacturer may be used in lieu of bond breaker rod when sealing random cracks. A further 2 full coats, at 900bond free, thereby allowing the sealant to adhere only to the sides of the joint. Furnish labor, materials, equipment and services necessary to caulk and seal. Bond Breakers Sec 2 2-3 ® ® Guide to Tilt-Up Bondbreakers A bond breaker is a ‘material used to prevent adhesion of the newly placed concrete to the substrate’*. Find Bastion 300ml Bond Breaker Joint Sealant at Bunnings. General purpose polyutherane exterior grade joint sealant. The shape of the sealant bead is also important for each application- see Figure 1. used. In a typical joint the sealant should adhere to both opposite surfaces of the sealant slot but not to its base, leading to two sided adhesion; not three sided adhesion. Joint must be tooled flat or slightly concave. Sealing joints must be accessible and repairable. When the joints have been filled with fibre filled board, this must be raked back to the required depth. C. Protect surfaces with masking tape. High recovery rate. To control the sealant from attaching to the surfaces, bond breaker tape is involved along the whole width/length of the base of the joint. from adhering to the back of a raked joint or to the backup), allowing the sealant to freely deform in response to building movements (see Figure 1c). Apply sealant using consistent, positive pressure to force sealant into the joint. Compatible with Davco K10. Back-up Rod: A type of sealant backing. Bond breaker tapes are available in following width:15mm, 20mm, 25mm, 50mm. Waterproofing membranes. joint movement can be accommodated in a thin bead of sealant than in a thick bead. bond breaker to prevent 3-sided adhesion. 1 DESCRIPTION: A. Dulux Avista 10L Bluestone Coloured Concrete Sealer (0) $159. 800. Approval of the backer rod or bond breaker tape shall be made by the manufacture and engineer. There are many different types of backer . Joint width 8 mm 10 mm 15 mm 20 mm 25 mm 30 mm Joint depth 6 mm 8 mm 8 mm 10 mm 12 mm 15 mm Joint length / 600 ml ~ 12. . Sikasil®-728 SL is designed to seal horizontal saw cut and expansion joints in concrete pavements on highways, airports, bridges, walkways, parking garages and driveways. Pavt. Allow for proper sealant tooling. Use either a backer rod or tape bond. DOWSIL™ FC Parking Structure Sealant is 3 inches. Tool as required, although minimum tooling is necessary. Eliminates the need for bond breaker sealants. Joint dimensions should allow for 6 mm (1/4 in) minimum and 13 mm (1/2 in) maximum depth of sealant. Tel: +61 3 9279 9333. 4 Neoprene SECTION 07 92 00 Page 1. The cured sealant is durable and flexible enough to accommodate ± 50 percent movement of original joint dimension when installed in a properly designed weather seal joint. Joint Sealant Material To Be 8") (w +1 Tape Bond Breaker Or Crack Existing Joint Saw Cut Or Formed Joint 4"" to 1 8 1 4"" to 1 8 1 32" Max. •A thin bead of sealant (1/4" ± 1/8" Documents. CHARACTERISTICS / ADVANTAGES Esay to use Closed cell Asists with joint design Assists with sealant profile Provides bond breaker Compatible with cold applied sealants (polyurethane, silicone)joint movement can be accommodated in a thin bead of sealant than in a thick bead. Filler: A sealant backing used behind a back-up rod. 800. It’s important to match the sealant contact depth to the type of joints. Refer to instructions given by rod and tape manufacturers for the correct backer rod and tape size related to joint size. prevent bond. approximately 2” in length shall be made along the sides of the joint. b. ) The sealant should have a minimum bond of 1/4 inch on the side of the joint and a depth of 1/8 inch to 3/8 inch at the center. Customer Service. Sikaflex-1a can be used in green and damp concrete applications. Sikaflex® MS bonds well to: Concrete and masonry Cement plaster systems Aluminium, copper, brass and zinc Stainless, mild or galvanised steel Glass and ceramic tiles Bond breaker tape: primarily a self-adhesive polyethylene or Teflon material; Not Recommended Materials A rigid joint filler or sealant backing in joints that will experience movement; Using braided sealant backing to compensate for a joint opening that is too large for it Buy products online from our wide range. Tool as required to properly fill joints and force sealant against joint interfaces, maximizing bond. The combined system will satisfy the criteria of AS 3740 “Waterproofing of Wet Areas Within. Sealant for concrete and masonry facades. 3. Recess Joint Sealant Polyethylene Bond Breaker Tape Polyethylene Bond Breaker Tape Recess Joint Sealant Joint filler board In a typical joint the sealant should adhere to both opposite surfaces of the sealant slot but not to its base, leading to two sided adhesion; not three sided. 2 mm) thick, and has high adhesion to steel or other structural metals. Use a size that will compress at least 25% when inserted into the joint. To facilitate free movement, it can be achieved by adding bond breaker tape in between the joint sealant and joint. to prevent joint depths from exceeding ½ in (13 mm). Where a particularly neat finish is required, mask the faceExpansion Joints - - All expansion joints must be isolated from the membrane by a minimum 12mm wide bond breaker tape that covers the entire width & length of the joint. Often necessary because of the sealant in-compatibility with these forms of fillers. Compatible with Davco K10 Plus, Davco K10 Rapid and Davco Dampfast. - All bond breaker joint sealant profiles must be a minimum 6mm in depth at the mid-point of the joint. Elastic reinforcement essential for the critical movement areas. Figure 1. Bond. - Will not discolor sealants or substrates. The type of bond breaker required under the above mentioned. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. When a bond breaker is needed at a construction joint, a curing compound, form release agent and the like can act as a bond breaker. Consultmm) and width is 1/4 in. Consult mm) and width is 1/4 in. Type 2A Sealant: One-part acrylic or elastomeric sealant for sealing small joints; PTI 200 or Tremco Small Joint Sealant, Pecora AC-20. narrow joints. 421. For construction or contraction joints, use a bond breaker tape or back-up strip. Bastion 4L Exterior. It is important for the sealant to bond to joints in. act as bond breakers, which allow the silicone sealant to move freely with the joint. Bond Breaker. 3 BOND BREAKERS 2. Product code: 305534. Features. The maximum recommended joint width is 1. $9. • is impacted by sealant joint MOC (including the substrate Adhesion: Sealant joint failures in the biomedical facility environment are frequently due to. In such cases, the use of bond breaker tape in lieu of backer rod is acceptable. Bond Breakers in Waterproofing Systems. Consisting of a unique grade of rubber, the Bond Breaker Waterproofing Joint. This allows membrane release from the bond breaker, into a compressible medium. Davco K5 Bond Breaker is a neutral cure silicone designed to be used as a bond breaker in the installation of Class II & III waterproofing membranes. Install bond breaker tape or backer rod to prevent bond at base of joint. And fourth, it simplifies tooling. 5”. Where hydrostatic pressures are present, compression should be to approximately 40% of its original size. When sealing joints and gaps, avoid three-sided adhesion by using bond breaker tape and/or backer rod. Mastic is a form of sealant or adhesive used to fill the joints or as a bond for different materials and gaps. It cures under the influence of atmospheric moisture to form an elastomeric material with adhesive properties, in some cases without the need for priming of the substrate. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. These ensure that: adhesion is between the substrates only (no perpendicular stress. • Neutral cure – will not corrode concrete or zinc coated. Proper design is 2:1 width to depth ratio. Suitable as a back-up filler for most liquid sealants Ideal for stopping contaminants such as soil entering into expansion slots and joints. The cured. Sikaflex-11 FC Sikaflex®-11 FC is a one part, moisture curing, elastic joint sealant and multipurpose adhesive based on. The. Usage. 5m / 3. 94. For use on horizontal substrates. General purpose polyutherane exterior grade joint sealant. In all joints a bond breaker must be used to prevent sealant contact with the back of the joint, and hence allow optimum performance. Dimension C must be at least 6 mm (1/4”). 4. With a. Where hydrostatic pressure exists, only bond breaking tapes must be used, not foamed back-upNeutral cure silicone used as a bond breaker. 1. Davco K5 Bond Breaker is a neutral cure silicone designed to be used as a bond breaker in the installation of Class II & III waterproofing membranes. Lightweight – Nomaflex weighs 75%. (813 mm) apart. Tremco Dymonic. 3 D (D=Conc. They can be flexible sealants in the form of liquid, spray, rods, or tapes. Master Wall® System Latex Sealant as Bond the joint shall be mechanically cleaned by water or sand blasting. 2:1 width to. For metal butt joints Bond Breaker Tape is applied to metal edges so the sealant can be "buttered" over the joint and canexposure to atmospheric moisture. Where a particularly neat finish is required, mask. 7 TRAFFIC CONTROL PART 2 PRODUCTS 2. Purchase Bastion 300ml Bond Breaker Joint Sealant. g. Where the joint depth does not permit the use of backer-rod, a bond breaker (polyethylene strip) must be used to prevent three-sided adhesion. Our backer rod (backstop / bond breaker), is designed to work with all popular sealants including NP1 Polyurethane, a Novalink Polyether, M1, Duralink, glazing sealants and self leveling sealants like Novalink SL or SL1 and SL2, as well as butyls, polyurethane, silicones, tri-polymers, polysulfide. It is important however that the sealant/bond breaker rain screens are backed by aJoint Sealant Material To Be 8") (w +1 Tape Bond Breaker Or Crack Existing Joint Saw Cut Or Formed Joint 4"" to 1 8 1 4"" to 1 8 1 32" Max. Sika® Duoflex NS is a two component, non-sag, premium quality polysulfide sealant, specifically designed for vertical and overhead surfaces. Sealing joints must be accessible and repairable. NOTE: Although good in principle, it is difficult to place bond breaker tape in the bottoms of the grooves such that the tape will not move during application of the sealant. Sika® Foam Backer Rod Closed Cell is manufactured from closed cell, low density, polyethylene foam. Install bond breaker tape where required by manufacturer's recommendations to ensure that sealants will perform as intended. Without bond breakers, the joint sealer tears apart from movement. Joint Depth The joint must be deep enough to allow proper placement of the sealant and a bond breaker/backer rod. Service temperature -50˚C to +120˚C. High strength while remaining elastic. 5 m ~ 2. Compare. D. Add to Cart. a low-range sealant used for filling or closing a seam, crevice or crack in order to make it watertight and airtight. $9. The sealant does not adhere to it, and no separate bond-breaker is required. Backer rod Sealant. This base surface can be an isolation or expansion joint filler material, concrete, backer rod, or any other base that can lead to a three-plane adhesion condition. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions and general areas subject to movement. In joints where polystyrene or bitumen impregnated fillers have been used, Abelflex is ideal as a bond-breaker. , 11 Saw Cut Or Formed Joint Compression Seal 16" Preformed Elastomeric 9 Not Required For Construction Joints. e. Tough, elastic, rubber-like seal. The depth of the sealant joint should be ½ the width of the joint. C. It is important for the sealant to bond to joints in. Add to Cart. Apply joint sealants in uniform, continuous ribbons without gaps or air pockets, with complete "wetting" of joint bondstructure. BondThe sealant should bond only to the substrates that will be moving. 1 "Min. For construction or contraction joints a bond breaker tape or back-up strip should be used. SUBMITTALS. The depth of the sealant joint should be ½ the width of the joint. Type 3 bond breakers are effective where membrane application occurs either below, or on top of the screed. Packaging: Grey 600ml. You can use bond breakers to improve joint performance. Joint sealants help keep wind and rain out of buildings and foreign solid mat-t e r, such as dirt and ice, out of joints. For contraction joints a bond breaker tape or back-up strip must be used. e. Back-up Rod: A type of sealant backing. Sealants will fail in cohesion (split) if bonded on. Add to Cart. The sealant must be a minimum 6mm in depth at the mid-point of the bond breaker joint and extend a minimum 6mm on either side of the joint or gap. Suitable back-up material, duracord, must be used to adjust sealant depth in the joint to comply with the joint geometry cited in the table. Inside Corner Joint: Where substrates are abutting and no-to-minimal joint movement is anticipated , provide bond breaker tape in the corner extending no less than ” (6 mm) out from the corner in BOTH 1/4 directions (see Image 2). the joint and completely fill the joint without spilling the material on the surface of the pavement. 73. Clean and dry the joint or crack and install a new bond breaker before placing the sealant. If depth exceeds 1/2", use backer rod. Bond Breakers Bond breakers prevent three-sided adhesion of the seal-ant (i. 1 Rubber 2. Figure 4 shows a section of sealant removed from a failed joint. 2 mm) thick, and has high adhesion to steel or other structural metals. The bond breaker tape stops the sealant from adhering to the surfaces and prevents three-sided adhesion. Suitable substrates for Sikasil®-728 SL are concrete, steel, glass, aluminium, masonry, asphalt, brick, natural stone and others. Silicone WP Plus • Neutral cure, anti-fungal formulation. The sealant joint shall fully embed the bond breaker tape, extending 1/4” (6 mm) to 3/8” (10 mm) beyond the endThis type of tape is made of polyolefin, or Teflon, and. 3. adequate sealant support. 1. Unlike AIFB joint filler products, Nomaflex is: 1. Customer Service: 1. The primary function of a joint sealant is to prevent the intrusion of un-wanted substances into or through the joint. 2 Joint slot surface preparation 5. 10 WARRANTY SPEC WRITER NOTES: 1. Find us. 5”use a 1:1 width to depth ratio and joints wider than . The Work in this Section covers all sealant and caulking materials and. Service temperature -50˚C to. A rigid joint filler or sealant backing in joints that will experience movement. 3 Low Modulus Silicone Sealant: 932. Also avoid applying sealants in ambient conditions where threat of rain is imminent. Back up material controls the depth of sealant in the joint. - Bostik Dampfix Platinum waterproofing membrane can be applied as soon as the bond breaker joint can be over coated without deformation of the coved sealant profile. Bond Breaker Black Polyethelene Tape. Note: Not recommended for fire applications. 5 m ~ 1. 4. In the case of Class III membranes, Figure 3. Minimum depthA. Bostik’s recommended sealants • Bond breaker is to be installed over the coat where a bond breaker joint is required, e. 5 DELIVERY, STORAGE, AND HANDLING 1. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. If DOWSIL™ 991 Silicone High Performance Sealant cannot be installed whenProduct Description. bond breaker joint can be over coated . Primer. Anti Fungal. No bond breaker material; therefore the joint will not. Bond Breaking. The bond breaker tape stops the sealant from adhering to the surfaces and prevents three-sided adhesion. Home DIY; Trade; Waterproofing. Sikaflex® MS has been formulated for sealing joints in and around concrete, brick, masonry, pre-cast panels, stone cladding, windows, doors and fibre cement sheeting. PAGE 2. 6144. Uncured material can. EN 13108-6 8. All oil, dirt, debris, paint and any other material that may be a bond breaker must be removed. Cut spout or tip to desired bead size. • Suitable for use as a waterproofing membrane bond breaker or as a highly durable finishing sealant. • For a joint size larger than 1 inch, the depth should be kept to between . The joints should be sized so maximum extension and compression does not exceed +100 and -50 percent respectively. Primers may be applied to the sides of joints to provide a good bond between them. Self Adhesive Butynol Tape that is the ultimate in bond breaking. The backer rod acts as a bond breaker, preventing what is commonly referred to as three. 5” use a 2:1 width to depth ratio to accommodate movement. Silicone sealants are able to bond to most surfaces, particularly porous substrates such as concrete and masonry. Excellent adhesion; Flexible joint sealant; Single component; BITUMASTIC GP. 08 APPLICABLE PUBLICATIONS: A. In joints up to 0. 4. Bond breaker tape prevents adhesion to the back of shallow three-sided joints, which can cause splitting failure in the sealant. sticking to the bottom of the joint and then tearing when the joint opens. The maximum depth of any sealant shall be 1/2” (13mm). The installation of solvent based polyurethane joint sealants beneath water based membranes can result in a breakdown in the membrane through solvent release. e. C. Depth = ½ Width. Essential to any sealant application is a backer rod or bond breaker tape. Joint Sealant Material To Be 8") (w +1 Tape Bond Breaker Or Existing Joints Or Cracks. Essential to any sealant application is a backer rod or bond breaker tape. Leave no voids. For use in hori-zontal joints in traffic areas, the absolute minimum depth of the sealant is 1/2” and closed cell backer rod is recommended. Add to Cart. Neutral cure silicone used as a bond breaker. Waterproof – Nomaflex will not absorb water and will remain in place for years. It is important for sealant to bond to joints in two places so it can expand properly. Proper design is 2:1 width to depth ratio. Because many backup materials act as bond breakers, a separate bond breaker material is not always. Polyethylene tape is the most. palette knife, masking tape, bond breaker tape, tool cleaner, paint brush for priming, helical mixing paddle and non porous surface primer. CHARACTERISTICS / ADVANTAGES Easy application by brush or sprayer Non - Hazardous, Non Toxic Non - Staining Customer Service: 1. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions and general areas subject to movement. Size: 5 Metre x 100mm Roll. 9 mm) wet coat extending a minimum 35mm either side of the bond breaker tape must be applied as an extra coat. Compare. Joint Sealant 300ml Cartridge| Exterior polyurethane joint sealant, general purpose by James Hardie. Bond breakers Bond breakers in the form a tape is made of PVC or metal or paper. 4 MAINTENANCE OF SEALING JOINTS Sealing joints fulfill an important role when it comes to protecting the bond line from environmental influences or simply prevention of moisture or water ingress. Bastion 15kg Under Tile. A joint sealant can fail over time due to: any of the options are correct. The product should be used where appearance. It is suitable for movement and connection joints for indoor and outdoor applications. 75 . Bastion 100mm x 10m Bond Breaker Waterproofing Joint Band (1) $25. refer to table 1. Tool as required to properly fill joints and force sealant against joint interfaces, maximizing bond. Add to Cart. 15 (After two weeks @ 190°F)Expanded PTFE joint sealant - Super Seal PTFE 3mm x 10mm x 15 m. 1 EXECUTING EQUIPMENT 3. Cork or rigid non-impregnated cane-fiber joint fillers are suitable. Polysulfides, silicones, and polyurethanes are examples of: high-range sealants. Increasing the width (W) of the joint and decreasing the depth (D) generally reduces. substrate. Laurence Co. Bastion 100mm x 10m Bond Breaker Joint Band is a waterproof reinforcing and bond breaking band that is used as wall/floor junctions to protect the most critical areas of the waterproofing application. Typically there are three components to the Bond Breaker System; a Fillet; bond-breaker tape and a waterproofing membrane. Note: Not recommended for fire applications. Install bond-breaker tape behind sealants where. You can simply use a bond breaking sealant or preformed bond breaking corner, tape and pipe sleeves. formed joints a polyethylene bond breaker tape must be used to prevent sealant from adhering to the back face of the joint. Thick. In joints where polystyrene or bitumen impregnated fillers have been used, Abelflex is ideal as a bond-breaker. Uses: BestBond Joint Sealant permanently fills and seals cracks in concrete, stone, masonry, and most rigid surfaces. Hot backer rod is a backstop material for most hot-pour sealants used to fill contraction and expansion joints of concrete highways, runways, driveways, and parking lots. in optimal conditions, the depth of the sealant should be ½ the width of the joint. Excellent adhesion; Flexible joint sealant; Single compone; Footer Menu. Compare. Low VOC Sets in just 2 hoursActing as the required system "bond breaker", the B50 Joint Band will accommodate movement in longitudinal, lateral and transverse directions enabling high elongation,. SYSTEM DESCRIPTION . JOINT DESIGN QUIKRETE Polyurethane Sealants A thin bead of sealant will accommodate more movement than a thick bead. It is important for the sealant to bond to joints in two places so it can expand properly. WPA MS is a single component, moisture cured silane modified hybrid sealant free of solvents and isocyanates, with a very low VOC content. Customer Service: 1. Tool as required, although minimum tooling is necessary. 932-1. A roughened surface will also enhance bond. A clear or translucent type of packing tape is preferred and can be purchased from most Dow silicone pavement sealant distributors. 5”. org Bi-cellular sealant backing: composed of both open and closed cell polyethylene or polyolefin foam with a surface skin. Joint Sealant: Mildew-Resistant, Single-Component, nonsag, acid-curing silicone joint sealant, Greenguard certified White Lightning All Purpose Silicone Sealant. (Vetoflex PBR). Backer rods should be used when you need to increase elasticity in sealant, reduce caulk consumption by controlling sealant depth, force adhesive into contact for enhanced bonding, or to create a “bond-breaker” which allows the joint to be easily cleaned out and refilled. Bond breakers are commonly used for tilt-up walls and precast segments so that the right pieces are cast together. Bond Breakers. For joints greater than 1 inch (25. essential that bond breaker tape or polyethylene closed cell backer rod be used to regulate joint depth and prevent three sided adhesion. au4. Bastion 100mm x 10m Bond Breaker Waterproofing Joint Band (1) $25. • Excessive sealant depth will result in. Economic option for Joint Sealant in Waterproofing applications. JOINT SEALANTS SECTION 07 92 00 JOINT SEALANTS PART 1 - GENERAL 1. Longer drying times are necessary in these areas. • Excessive sealant depth will result in. Use a Sika PEF backing rod to form the joint base. Back-up Rod: A type of sealant backing. ** Note: The use of a bond breaker is not required in expansion joints containing Expancell or Expandafoam cellular polyethylene joint fillers. Sealant that does not bond to the concrete surface of the joint walls, contains voids, or fails to set toJoint Sealant: ASTM D5893. DOWSIL™ 123 Silicone Seal H. ASTM D1056 – Standard Specification for Flexible Cellular Materials Sponge or Expanded Rubber. it into the joint channel without stretching it lengthwise. 421. g. 99. Suitable as a back-up filler for most liquid sealants Ideal for stopping contaminants such as soil entering into expansion slots and joints. 08 APPLICABLE PUBLICATIONS: A. • Install appropriate Tremco polyurethane sealant, TREMflex 50 or Dymonic 100 into the crack in the correct depth to width ratio. polyethylene bond breaker tape to prevent three-sided adhesion. All joint facings must possess an open surface texture with all curing compounds and sealers removed. Where joint design or depth of joint will not permit the use of backing rod, use a bond breaker tape. It is important for the sealant to bond to joints in. Apply moderate pressure to break seal inside the nozzle. Elastomeric sealants should not adhere to the base of a joint. Contact CRL Customer Service. Bond Breakers. 4. To facilitate free movement, it can be achieved by adding bond breaker tape in between the joint sealant and joint filler. As the sealant joint width becomes larger than 1", the depth should be held to approximately 3/8". Bond Breaker Tape stops joint sealants from adhering to surfaces and preventing “3-sided adhesion” which limits the ability of the sealant to accommodate movement. Hybrid MS Polyurethane Sealant. duracord is a self-releasing material, but if soft-board or cork is used as the joint filler, a plastic strip bond-breaker must be placed on the filler surface before sealant is applied. For green concrete applications control joints must be cut 8 hours prior to sealant. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. 2 Trial Joint Sealant Installation 1. Bastion 100mm x 10m Bond Breaker Joint Band is a. 2:1 width to. Acceptable types of bond breakers shall include: (a)Closed cell expanded polyethylene foam backer rod. • For joints subject to puncture by high heels or umbrella points, a stiffer or higher density backup material is required. The bond breaker may be incorporated in the backup material. Closed cell backer rod should be 25 % larger than joint width; do not compress more than 40 %. Thioflex 600 Gun Grade is a two-component joint sealant, based on a liquid polysulphide polymer which, when mixed and applied, cures to form a tough, rubber-like seal. Install bond breaker tape between sealants and joint-fillers, compression seals or back of joints where adhesion of sealant to surfaces at back of joints would result in sealant failure. • APPLICATION Avoid applying sealants below 40 °F (4 °C) unless following specific instructions for cold weather caulking. Apply sealant into joint slot in one direction and allow sealant to flow and level out as ne-cessary. For expansion joints, sealant manufacturers recommend that the contact depth should be equal to one-half the sealant joint width. The bond breaker shall serve to ensure that the bottom of the sealant is bond free, thereby allowing the sealant to adhere only to the sides of the joint. Home DIY; Waterproofing. coatings, and any other material that may be a bond breaker must be removed. Bond Breaker or Backer Rod Installation: Install bond breaker or backer rod as specified to regulate depth of sealant. Also avoid applying sealants inBond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for. There is no reason why the membrane can’t stick to the bond breaker, provided the bond breaker material is capable of accommodating movement. 6. The ideal working joint depth is 1/4" (6 mm). Dimension A or B less than 6 mm (1/4”). Rp5. 1. Mastic Sealant. Apply a fillet to all wall and floor junctions, and if a timber or cement based sheet has been used apply a sealant to the joint between the sheeting. construction or contraction joints a bond breaker tape or back-up strip should be used. The sealant does not adhere to it, and no separate bond-breaker is required. Long term sealing protection at volatile areas. Use bond breaker tape over the backer material. WPA MS is a single component, moisture cured silane modified hybrid sealant free of solvents and isocyanates, with a very low VOC content.