JOINT DIMENSIONS Joint size should not exceed 1/2" wide x 1/2" deep. Suitable as a back-up filler for most liquid sealants Ideal for stopping contaminants such as soil entering into expansion slots and joints. For use with all Bastion Waterproofing Membranes. Bond breaker systems can be optimized by installing foam backing rod in the junctions, on top of the cured membrane, before laying the screed. D. JOINT PROTECTION. Bond Breaker Tape: Polymer tape compatible with joint sealant materials and recommended by sealant manufacturer. 4. 94. 020 8524 1931. This ensures the correct and uniform sealant depth along the whole length of the joint. In joints up to 0. Joint dimension of 4X anticipated movement allows proper function of high performance sealants even if applied at temperature extremes. It is applied to the casting slab to function as a bond breaker between the casting slab and the tilt-up or lift-slab panel. 5 m ~ 2. STEP FOUR: FILLING THE JOINT BACKING MATERIAL: closed cell, or bicellular backer rods or bond breakerA bond breaker is a separator substance applied in between adjoining solid surfaces to ensure that there is no adhesive molecular bond between the surfaces. the joint and completely fill the joint without spilling the material on the surface of the pavement. Features. Allow for proper sealant wetting of the joint surfaces. Master Wall® System Latex Sealant as Bondthe joint shall be mechanically cleaned by water or sand blasting. 1. A clear or translucent type of packing tape is preferred and can be purchased from most Dow silicone pavement sealant distributors. Types of bond breakers. Sealants can help pre-Joints shall be designed with a depth to width ratio of 1:2 (joint depth one-half the width). G. 5”. internal brick reinforcement. Closed cell backer rod or bond breaker tape must be installed at the bottom or base of a dynamically working joint prior to sealant installation to prevent three sided adhesion. Email Us. The sealant does not adhere to it, and no separate bond-breaker is required. Contact CRL Customer Service. APPLICATION RANGE Performance Levels Commercial and residential Location Internal wet areas, balconies, decks, and other areas that will be tiled or otherwise protected from regular foot traffi c. . Contact us4 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. Tool as required to properly fill joints and force sealant against joint interfaces, maximizing bond. 3 BOND BREAKERS 2. Consisting of a unique grade of rubber, the Bond Breaker Waterproofing Joint. Bastion 4L Exterior. The depth of the sealant joint should be ½ the width of the joint. narrow joints. This article discusses the features of mastic sealants in the construction industry. 0m / 5. 3. Floor tiling with a 3mm joint size may include silicone filling to full depth, as long as a bond breaker is installed to the backing substrate to maintain two-wall adhesion. 6. 2:1 width to. Add to cart. E. 6144. • For a joint size larger than 1 inch, the depth should be kept to between . "Min. Nitoseal SC600 may bond to the tapes and result in the failure of the joint sealant. Excellent adhesion – bonds to most construction materials without a primer. to internal corners and changes in direction of substrate plane, such as wall/floor; tap bodies, water stops, drainage outlets or similar • Bond breaker joints must be a minimum 12mm x 12mm coved bead of. 5 m ~ 4. For contraction joints a bond breaker tape or back-up strip must be used. 421. Tool as required, although minimum tooling is necessary. Acceptable types of bond breakers shall include: (a)Closed cell expanded polyethylene foam backer rod. As elastomeric sealants will not bond to Polyboard PE, the additional need for bond breaker strips is eliminated. Bleeding The loss of fluids from mastics and sealants Bond breaker A release material to prevent adhesion of sealant to the back of a joint (see fig. 1/4” deep (6mm X 6mm). 1 EXECUTING EQUIPMENT 3. - Will not discolor sealants or substrates. 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. Bastion 300ml Bond Breaker Joint Sealant (0) $9. Flexible Joint Sealant. For use with all Bastion Waterproofing Membranes. A bond breaker tape or backer rod must be present if joint movement is anticipated. - Substrate gaps at drainage outlets, flashings,. preventing pipe from contact with the outer sleeve. The minimum requirement for appropriate Bond Breaker application is outlined in Table 3. Thick. Bastion 300ml Bond Breaker Joint Sealant (0) $9. The use of a bond breaker is not required in expansion joints containing Fosroc Hydrocell or Expancell cellular polyethylene expansion joint fillers. The cured. • Three-sided adhesion limits the amount of movement that a joint can accept before failing. Sealant B. Proper design is 2:1 width to depth ratio. 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. 3. Hybrid MS Polyurethane sealant is designed for use as a bond breaking sealant as part of Crommelin liquid applied waterproofing membrane systems and is also suitable as a general purpose construction joint sealant and construction adhesive. Application: All joints should be masked to ensure a neat appearance and prevent sealant applied outside the joint confines from imparting a discoloration to the substrate. Bond Breaker Tape is a polyethylene tape used to prevent 3-point adhesion in shallow caulk joints or joints where backer rod cannot be used. Simply raking debris out of the joint with hand tools is not sufficient. Click here to access Bastion 300ml Bond Breaker Joint Sealant – User Guide When you’re in need, we’re here to help ! We offer a range of services including plumbing ,. the sealant during joint tooling, inherently directing the tooling force laterally to the sides of the joint to cause the sealant to wet the substrates, which promotes an adhesive bond. When a bond. 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. Thick. in deep joints, the sealant depth must be controlled by closed cell backer rod or soft backer rod. Three face adhesion can be prevented by using bond breakers. bond breaker tape sealant. prevent bond. e. For construction or contraction joints a bond breaker tape or back-up strip should be used. 2. 3. Features & Benefits . Depth = ½ Width. 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. B. 3. The bond breaker allows for 2-sided rather than 3-sided adhesion, which permits much greater elasticity of the sealant. Publications are referenced in text by basic designation only. Cut spout or tip to desired bead size. in optimal conditions, the depth of the sealant should be ½ the width of the joint. Install bond-breaker tape behind sealants where. For use on horizontal substrates. Acts as the bond breaker for the waterproofing system eliminating need for other sealants/tapes. The sealant does not adhere to it, and no separate bond-breaker is required. 3 D (D=Conc. The round profile assists in providing the correct joint sealant profile allowing optimum movement. •A thin bead of sealant (1/4" ± 1/8"Customer Service: 1. 2 of AS3740, applicable to the Class of Membrane. 2 Bond Breaking Tapes PART 3 EXECUTION 3. Add to Cart. Expansion/Contraction: 50% (±25%) as per ASTM C719. 800. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. The polyethylene bond breaker shall be an approved polyethylene sheeting having a thickness of 6 mils or greater. 9 L) unit Code: 042A 10 (Std Gray) Code: 042ANB 10 (Neutral Base). ) Not 3 D to 1 4 Saw Cut Or Parting Strip 1 TAPE BOND BREAKER PREFORMED ELASTOMERIC COMPRESSION SEAL BACKER ROD BOND BREAKER BACKER ROD BOND BREAKER TAPE BOND BREAKER CONCRETE-CONCRETE JOINTS CONCRETE. Second, it aids in achieving an ideal shape of the sealant (e. In such cases, the use of bond breaker tape in lieu of backer rod is acceptable. 932-1. Sealing joints must be accessible and repairable. It is an elastic and flexible material used to create a durable bond between two different surfaces or to protect a particular surface. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions, and general areas subject to movement. Features Snapshot. More joint movement can be accommodated in a thin bead of sealant than in a thick bead. joint sealing or in flooring applications such as saw cuts jointing. B. Bandage seal (Bandage joint) The application of sealant across a joint which is not designed to accommodate a sealant (see fig. Consisting of a unique grade of rubber, the Bondbreaker Waterproofing. JOINT BACKING BOND BREAKER Joint backing should be used to control the recommended joint depth and prevent 3-sided adhesion. Prior to any full-scale application of a subsequent paint, coating, sealer, adhesives sealant, grout, etc. Without bond breakers, the joint sealer tears apart from. 3. Expansion/Contraction: 50% (±25%) as per ASTM C719. 2 mm) thick, and has high adhesion to steel or other structural metals. Visit your local store for the widest range of products. 94. No bond or adverse reaction shall occur between the bond2. • Install appropriate Tremco polyurethane sealant, TREMflex 50 or Dymonic 100 into the crack in the correct depth to width ratio. Open cell polyurethane foam or closed cell polyethyleneBastion 300ml Bond Breaker Joint Sealant (0) $9. for all other joints. use polyethylene bond breaker tape to prevent three-sided adhesion. It is important for the sealant to bond to joints in two places so it can expand properly. Not Recommended for Backing Material. Commonly. Priming Priming is not usually necessary. Soft backer rod should be approximately 25% larger in diameter than the joint width. 0-3. joint width to sealant depth should be about 2:1. Bastion 100mm x 10m Bond Breaker Joint Band is a. polyethylene bond breaker tape to prevent three-sided adhesion. Bond Breakers. Easy and time saving installation; Eliminates need for bond breaking sealants, foams and tapes; Elastic reinforcement at critical movement areas; High strength while remaining elastic; Long term sealing protection at volatile areasInstall silicone sealants over a bond breaker to prevent the sealant from bonding to the bottom of the joint. , the vendor recommends appropriate field testing be performed to verify that all desired/required appearance. It is important for sealant to bond to joints in two places so it can expand properly. 73. thickness of sealant, waste, application techniques, etc. C. The type of bond breaker required under the above mentioned. MasterSeal NP 2 sealant. G. 4. 5” use a 2:1 width to depth ratio to accommodate movement. SJ-03 Butt Type Sealant Joint with Latex Sealant Bond Breaker Butt-Type Sealant Joint Bonds two materials, typically 1/4” of adhesion needed on the surface, joint width varies by system. Use bond breaker tape over the backer material. Joint Sealant 300ml Cartridge| Exterior polyurethane joint sealant, general purpose by. NOTE 1—This legend applies to Figs. Note: Not recommended for fire applications. Tel: +61 3 9279 9333. 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’*. When the joints have been filled with fibre filled board, this must be raked back to the required depth. custom crochet animals / leyland cypress hedge / bond breaker tape sealant. 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. Joints with Bond Breaker. Semi-rigid joint fillers. Finish Coat F. All bond breaker rods installed shall be covered by a sealant at the end of each work day. Hotwire 1200W 8m² Heating Mat (0) $1008. Do not prime or damage the surface of the bond breaker. e. Wrapped Mesh Embedded in Base Coat. The backer rod acts as a bond breaker, preventing what is commonly referred to as three. Stays resilient within a wide temperature range. horizontal hourglass shape). Where a particularly neat finish is required, mask the face edges of the joint before sealing and remove immediately after tooling is. Joint surfaces must be clean, dry and free from frost. Mastic is a form of sealant or adhesive used to fill the joints or as a bond for different materials and gaps. Open cell polyurethane foam or closed cell polyethylene Bastion 300ml Bond Breaker Joint Sealant (0) $9. contraction to maximize accommodation of movement. Sealant backer material is available in three types: Type I, Type II, and Type III, and serves one or more of the following purposes: (1) limits the amount and depth of sealant applied to a joint, (2) acts as a barrier interface to prevent backside adhesion (bondbreaker), and (3) provides a form to assist the sealant in developing a shape factor. b. Joint not properly tooled. PART 3 - EXECUTION. 7. Joint dimensions should allow for 6 mm (1/4 in) minimum and 13 mm (1/2 in) maximum depth of sealant. Apply sealant using consistent, positive pressure to force sealant into the joint. Surfaces Walls & fl oors. With a. Polyethylene tape is commonly used as bond breaker tape. 5”use a 1:1 width to depth ratio and joints wider than . If using a sealant, use a scraper to flatten the corners. It is important for the sealant to bond to joints in. 6144. When the joints are not deep enough to accept a backer rod, a polyethylene bond breaker tape should be installed. Correct joint depth can be established by inserting closed cell polyethylene backing rod tightly into the joint. We also provide all type of joint sealants. rods, typically composed of polyethylene, Figure 1 – Double backer rod and sealant joint section. )SECTION 07 9200 - JOINT SEALANTS. The installation of solvent based polyurethane joint sealants beneath water based membranes can result in a breakdown in the membrane through solvent release. 2 mm) thick, and has high adhesion to steel or other structural metals. Apply joint sealants in uniform, continuous ribbons without gaps or air pockets, with complete "wetting" of joint bondstructure. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. Natural bond breaker; Bitumen-free and rot-proof; POLYBOARD. joints from 6 mm to 12 mm wide, width and depth must be equal. Bond breakers Bond breakers in the form a tape is made of PVC or metal or paper. If joint depth does not allow for backer rod installation, use polyethylene bond breaker tape. Polyethylene tape is commonly used as bond breaker tape. Sika Sikaflex 1A Polyurethane Elastomeric Joint Sealant And Adhesive - 20 Ounce Sausage. Tool as required, although minimum tooling is necessary. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease and any other contaminants. Bastion 100mm x 50M 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. Bostik’s recommended sealants • Bond breaker is to be installed over the coat where a bond breaker joint is required, e. To prevent the sealant from adhering to the surfaces, bond breaker tape is applied along the whole width/length of the base of the joint. Thick. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions, and general areas subject to. Effective Date . 94. PAGE 1 OF 3 AVD3070 REV 4/05 TABLE 1 - PHYSICAL PROPERTIES Property/Test Methods Value Shore A Hardness, ASTM D-2240. Filler: A sealant backing used behind a back-up rod. These ensure that: adhesion is between the substrates only (no perpendicular stress from the back of the joint to weaken the focus on the connection between the substrates) the sealant is supported on the back side as tooling. Movement capability of ± 25 (ASTM C 719) Good workability. Sealant Pouring Fill the sealant in the ready joint by hand or. The use of a bond breaker prevents undesirable three-sided adhesion. This ensures the correct and uniform sealant depth along the whole length of the joint. Pavt. 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. Bond Breaker or Backer Rod Installation: Install bond breaker or backer rod as specified to regulate depth of sealant. There are many different types of backer . Bond Breakers: A type of sealant backing. Suitable for use with Bastion waterproofing membranes. C. substances such as over bond breakers or incorporating other reinforcement. 08 APPLICABLE PUBLICATIONS: A. provides a non-stick surface to prevent sealant 3-sided adhesion. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. (6. highest paying part-time jobs in germany for international students 2022 / 10 / 02Expansion 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. (813 mm) apart. This type of tape is made of polyolefin, or Teflon, and. Emer-Proof Joint Seal Tape performs as the waterproofing system bond breaker, avoiding the use of sealant beads and backing rod bond breaker methods. 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). Dampfix Platinum Bostik Australia Pty Ltd, Level 1, 6 English Street, Essendon Fields, Victoria, 3041, Australia. 1. A. Excellent adhesion; Flexible joint sealant; Single component; BITUMASTIC GP. the sealant joint depth (measured at the center) should always fall between the maximum depth of ½" and the minimum depth of ¼". USES Sika® BondBreaker W is used for "match-cast", "tilt-up" and "tilt-slab" constructions. Ableflex will assist with reducing environmental elements such as sand and soil penetrating the expansion slot or joint. • For joints subject to puncture by high heels or umbrella points, a stiffer or higher density backup material is required. 6 ENVIRONMENTAL REQUIREMENTS 1. Depth = ½ Width. Bond-Breaker Tape: Polyethylene tape or other plastic tape. PTFE joint Sealant 4mm x 12mm / Expanded super seal with Glue. Approved bondbreaker system conforming to AS 3740; Time saving simplified installation • Eliminates need for sealant bondbreakers and tapesContractor Polyurethane Sealant Permanently flexible with ± 25% movement capability. The ratio of joint width toVetoflex PU780 is one part, moisture curing, low modulus elastomeric joint sealant based on polyurethane. As we11 as the backup material having been either poorly positioned for depth, or inadequately held so that it moved when the sealant was applied. Neutral cure silicone used as a bond breaker. 8 mils thick with an adhesion of 45 oz/in, a tensile strength of 110 lbs/in and elongation at break of 33%. Latex sealant used with silicone sealant to provide bond breaker for use where minimal depth is available. General purpose polyutherane exterior grade joint sealant. • For a joint size larger than 1 inch, the depth should be kept to between . Where joint design or depth of joint will not permit the use of backing rod, use a bond breaker tape. Closed cell backer rod should be 25 % larger than joint width; do not compress more than 40 %. Sikaflex® Concrete Fix is a moisture-cured, one-part, non-sag and elastomeric polyurethane sealant. may be required to remove surface PRODUCT DESCRIPTION QUIKRETE Advanced Polymer Concrete Crack Sealant is a superior, textured, one-component, permanently flexible, multipurpose sealant. All joint facings must possess an open surface texture with all curing compounds and sealers removed. The bond breaker may be incorporated in the backup material. Refer to instructions given by rod and tape manufacturers for the correct backer rod and tape size related to joint size. Three-sided adhesion can be eliminated by the addition of a bond breaker tape or backer rod. Backer Rod is an i ntegr al component of sealant joints, it provides three main functions that allow the sealant joint to perform. 1 The primer used should be as named on the 4. If the sealant bonds in the wrong areas, it may tear or stretch to the point of failure. Place bond breaker tape in the bottom of the saw cut joint after it is cleaned and dried. The ability of a sealant installation to remain weathertight is critically depen-dent on proper preparation, continuity, durability of the sub-strates to which the sealant will adhere, and compatibility ofSealant placement is critical. In this case, the use of SNAP-CAP, KOOL-ROD, or a bond-breaker tape is not necessary. C. Rod Closed Cell provides bond breaking, assists in the control of joint depths for correct joint design and re-ducing sealant consumption. Expansion/Contraction: 50% (±25%) as per ASTM C719. Sikaflex® PRO is a 1-component, moisture-curing, elastic joint sealant. The maximum depth is ½” (13 mm) and the minimum is ¼ inch (6mm). Uncured material can. 3. This is to ensure a tight compressed fit. , measured at the center point of the joint width. Home DIY; Waterproofing. Install bond breaker tape or backer rod to prevent bond at base of joint. Click & Collect your purchase in-store or we'll deliver it to you. Uncured material can. For optimum performance, the width of the sealant bead should be approximately two times the depth. A narrow deposit of sealant applied to a building. Masking tape When the sealant is applied in the joints, the sides of joint may be damaged by spreading of sealant. Install bond breaker tape over substrates when sealant backings are not used. This allows membrane release from the bond breaker, into a compressible medium. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. To ensure free movement in the joint, bond breaker tape is placed between the joint sealant and joint filler. Sealant that does not bond to the concrete surface of the joint walls, contains voids, or fails to set toJoint Sealant: ASTM D5893. Bond breaker tape stops the sealant from adhering to the surfaces and prevents the three-sided adhesion. Protect surfaces with masking tape. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. Pavt. • For use as a bond breaker or general purpose construction sealant. 5”use a 1:1 width to depth ratio and joints wider than . • Backer rods, joint fillers or bond breakers must be tight to the sides of the joint to prevent loss of sealant through the bottom. General purpose polyutherane exterior grade joint sealant. Aspal sealant bulk / asphaltic plug , joint sealant rigid beton. The mortar in a rigid control joint must be raked out to the proper depth while it is still plastic. 01 EXAMINATIONSuitable back-up material, duracord, must be used to adjust sealant depth in the joint to comply with the joint geometry cited in the table. A bond breaker must be installed at areas subject to movement, wall/wall junction, wall/floor junction, sheet joints and seams, penetrations and. Concrete and steel are typical substrates used with bond breakers, as they are non-metallic or metallic anti-stick materials. Products. Clean all surfaces. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. It’s ideal for sealing expansion and construction joints in vertical and horizontal applications. CURE & TILT WB is used as a cure and bond breaker in tilt-up, lift-slab, and precast concrete construction. Add to Cart. Heat and melt the sealant in a melter constructed either as a double boiler filled with a heat-transfer medium between the inner and outer shells, or with internal tubes or coils carrying theElastoproof B50 / B10 - Bond Breaker Joint Band. Publications listed below form a part of this specification to extent referenced. Sika® Foam Backer Rod Closed Cell is manufactured from closed cell, low density, polyethylene foam. As a bond breaker/joint profile former to support elastomeric sealants in expansion joints between all common building materials Roads, bridges, roof joints Expandafoam Closed Cell is used as a backing strip for non traffic-bearing expansion joints. Elastic reinforcement at critical movement areas. Maintain Section format, including the UH master spec designation and version date in the center columns of the header and footer. Approval of the backer rod or bond breaker tape shall be made by the manufacture and engineer. CHARACTERISTICS / ADVANTAGES Easy application by brush or sprayer Non - Hazardous, Non Toxic Non - Staining Customer Service: 1. • Mould and mildew resistant. Self Adhesive Butynol Tape that is the ultimate in bond breaking. Customer Service: 1. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. The depth of the sealant should be 1/2 the width of the joint. Use a Sika PEF backing rod to form the joint base. contraction to maximize accommodation of movement. 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. In all joints a bond breaker must be used to prevent sealant contact with the back of the joint, and hence allow optimum performance. When you’re in need, we’re here to help! Features. Bostik’s recommended sealants • Bond breaker is to be installed over the dry primer coat where a bond breaker joint is required, e. XL or Expandafoam. From 12 mm wide to 24 mm wide the depth should be 12 mm,. 3. It is suitable for movement and connection joints for indoor and outdoor applications. C. , measured at the center point of the joint width. Bond Breakers or masking tape Bond breakers prevent three-sided adhesion of the sealant (i. Back-up Rod: A type of sealant backing. Priming is typically not necessary. This repair method has the advantage of avoiding costly sealant removal, but can only be used if. When you’re in need, we’re here to help!Features. Priming is typically not necessary. Dampfix Platinum Bostik Australia Pty Ltd, Level 1, 6 English Street, Essendon Fields, Victoria, 3041, Australia. Proper design is 2:1 width to depth ratio. )Sika® Tite Undertile is a membrane with high extensibility and is designed for use with a 12mm Bond Breaker, a bead of Sika® Neutral Cure silicone must be tooled off to form a 12mm wide bond breaker. Most substrates only require priming if testing indicates a need or where sealant will be subjected to water immersion after cure. Recommended for all sealant applications with the exception of applications requiring rapid curing from backside. - 1 - Types of bond breakers Bond breakers can be flexible sealants like silicone or polyurethane, bond breaker tapes, fabric mesh or foam rods. c. 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. formed joints a polyethylene bond breaker tape must be used to prevent sealant from adhering to the back face of the joint. 8 WARRANTY: A. Apply the sealant so that it is- All bond breaker joint sealant profiles must be a minimum 6mm in depth at the mid-point of the joint. Sealant works like a rubber band or a shock absorber bonded between two surfaces, stretching back and forth as the two surfaces move. See table below. 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). Sika® Foam Backer Rod Closed Cell has excellent cpmression and recovery properties, is available and various sizes and lengths. Thioflex 600 is a multi-component joint sealant, based on a liquid polysulphide polymer, which when mixed and applied, cures to form a tough, rubber-like seal. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of joint where such adhesion would result in sealant failure. In shallow joints self-adhesive polyethylene tape can be used. Tape shall be removed immediately after the tooling. The round profile assists in providing the correct joint sealant profile allowing optimum movement. SOF-SEAL® or any hot-applied sealant, such as HI-SPEC®, can be used to protect the joint. 3 D (D=Conc. Use bond breakers that are chemically inert and resistant to oils, gasoline, solvents, and primer, if one is required. Function #6: Serve as a bond breaker1. Back up material controls the depth of sealant in the joint.