Step 4: Membrane application. Minimum depthA. joint movement can be accommodated in a thin bead of sealant than in a thick bead. 5 m ~ 2. C. Laurence Co. 800. Joint not properly tooled. 3. • Excessive sealant depth will result in. Compare. MasterSeal NP 2 sealant. narrow joints. Remove loose particles remaining after cleaning operations above by vacuuming or blowing out joints with oil. Home DIY; Trade; Waterproofing. in deep joints, the sealant depth must be1/2 inch (13 mm). Compare. The maximum depth is 1/2 inch (13 mm) and the minimum is 3/8 inch (10 mm). 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. refer to table 1. WHAT are Joint Sealants used for ? Joint sealants are used to seal joints and openings between two or more substrates. Stays resilient within a wide temperature range. Stress relaxation to prevent splitting at edges. 5m / 6. XL or Expandafoam. Dunlop 1L Multipurpose Water Based Primer (0) $25. Use joints greater then the minimum of 1/4 inch (6 mm width), since wider joints can accommodate more movement than narrow joints and can also result in a greater joint spacing. 01 EXAMINATIONJoint dimension should allow for 1/4” minimum and 1/2” maximum thickness for sealant. joints from 6 mm to 12 mm wide, width and depth must be equal. 0-3. Do not prime or puncture the backer rod. Allow for proper sealant tooling. b. Uses: BestBond Joint Sealant permanently fills and seals cracks in concrete, stone, masonry, and most rigid surfaces. 3 mm). 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. Ensure that the air temperature during placement is at least 40 ºF (4 ºC). Drawing a bead on proper joint sealing. Add to Cart. Depth = ½ Width. Filler: A sealant backing used behind a back-up rod. In shallow joints self-adhesive polyethylene tape can be used. Avoid brushing on the bond breaker tape. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions and general areas subject to movement. 6 Silicone Rubber Base. Rod Closed Cell provides bond breaking, assists in the control of joint depths for correct joint design and re-ducing sealant consumption. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. The installation of solvent based polyurethane joint sealants beneath water based membranes can result in a breakdown in the membrane through solvent release. The sealant does not adhere to it, and no separate bond breaker is required. 4 mm), do not exceed 1/2 inch (13 mm) in depth. the sealant joint depth (measured at the center) should always fall between the maximum depth of ½" and the minimum depth of ¼". The mortar in a rigid control joint must be raked out to the proper depth while it is still plastic. 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. As the temperature falls, the force required to stretch the sealant increases. prevent bond. First, backer rod acts. 4. Bond breaker tape prevents adhesion to the back of shallow three-sided joints. However, it is important to note that most backer rods can serve as a bond. Always use bond breaker tape or closed cell backer rod for support on horizontal joints. Back-up Rod: A type of sealant backing. Three-sided adhesion can be eliminated by the addition of a bond breaker tape or backer rod. au4. It is important for the sealant to bond to joints in. If the sealant bonds in the wrong areas, it. contraction joints a bond breaker tape or back-up strip should be used. For expansion joints, sealant manufacturers recommend that the contact depth should be equal to one-half the sealant joint width. Apply moderate pressure to break seal inside the nozzle. 180. Therefore, sealing joints must be considered maintenance parts which require a periodical inspection. Bond Breaker Strips. Thioflex 600 multi-component joint sealant is based on a liquid polysulphide polymer, which when mixed and applied, cures to form a tough, rubber-like seal. 5 DELIVERY, STORAGE, AND HANDLING 1. A further 2 full coats, at 900of the sealant to maintain minimum or maximum depth of sealant. Where hydrostatic pressure exists, only bond breaking tapes must be used, not foamed back-up strips. The polyethylene bond breaker shall be an approved polyethylene sheeting having a thickness of 6 mils or greater. The Work in this Section covers all sealant and caulking materials and. 3. The backer rod most importantly acts as a bond breaker, preventing what is referred to as three sided adhesion or three point bonding. JOINT PREPARATION The joint surface must be clean, dry and free from oils, loose mortar, laitance, release agents and other contaminants. Meets ASTM C920, Type S, Grade NS,. Mastic Sealant. Bond Breakers or masking tape Bond breakers prevent three-sided adhesion of the sealant (i. 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). Protect surfaces with masking tape. Sealant backing. Masking: Mask adjacent surfaces to prevent staining or damage by contact with sealant or primer. Acting as the required system "bond breaker", the B50 Joint Band will accommodate movement in longitudinal, lateral and transverse directions enabling high elongation, rupture resistance and up to 100% elastic recovery 💪 Clean joint surface, free from dust and other contaminants. Essential to any sealant application is a backer rod or bond breaker tape. "Min. Without bond breakers, the joint sealer tears apart from. Suitable as a back-up filler for most liquid sealants Ideal for stopping contaminants such as soil entering into expansion slots and joints. 99. may be required to remove surface PRODUCT DESCRIPTION QUIKRETE Advanced Polymer Concrete Crack Sealant is a superior, textured, one-component, permanently flexible, multipurpose sealant. • Backer rods, joint fillers or bond breakers must be tight to the sides of the joint to prevent loss of sealant through the bottom. Joints with Bond Breaker. Cork or rigid non-ASTM C1193 – Standard Guide for Use of Joint Sealants. Back-up Rod: A type of sealant backing. Hybrid MS Polyurethane Sealant. Apply the masking tape on the edges of the both the joint faces. It incorporates a self-adhesive portion (central 1/3 of tape) that acts as a bondbreaker - over joints, cracks or other. 421. The maximum depth is ½” (13 mm) and the minimum is ¼ inch (6mm). The cured. 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. One step in the preparation of a mastic sealant joint is filling or backing out the gap prior to mastic sealant application. In acoustical applications, apply 1/4" (6 mm) minimum. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease and any other contaminants. Note width-depth ratio, concaveJointflex® Backer Rod are used in joints in pre-cast and cast-in-situ concrete elements to give support to the joint sealant application, aid in the correct joint sealant geometry (application depth and shape) and prevent the joint sealant from adhering to the top of the expansion joint filler board (3-way bonding), acting as a bond breaker. Install bond breaker tape or backer rod to prevent bond at base of joint. Semi-rigid joint fillers. Closed cell backer rod diameter should be larger (i. Bond Breakers Bond breakers prevent three-sided adhesion of the seal-ant (i. D. When the joints are not deep enough to accept a backer rod, a polyethylene bond breaker tape should be installed. For most effective results, dura. 2 PRIMERS 2. Bond breakers should be utilized with deep joint applications. - Substrate gaps at drainage outlets, flashings,. Elastic reinforcement essential for the critical movements areas. therefore, sealant wastage is reduced. 4. assist cold-applied sealants in developing the proper shape factor to prolong the sealant service life. 4 BACKSTOPS 2. Figure 4 shows a section of sealant removed from a failed joint. 03 APPLICATION A. Features. Joint Filler, Backer Rod and Breaker Tape a. Install approved backer rod or bond breaker tape in all joints subject to thermal movement to prevent three sided adhesion and to set the depth of the sealant at a maximum of 1/2 in. Closed cell backer rod should be 25 % larger than joint width; do not compress more than 40 %. Tool as required, although minimum tooling is necessary. sticking to the bottom of the joint and then tearing when the joint opens. Bond Breaker D. PRIMINGbond breaker tape sealantaudi r8 coil pack sr20detaudi r8 coil pack sr20detA bond breaker tape is an essential component in cases where the sealant can adhere to its base surface. 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. Leave no voids. In instances where the joint configuration will not permit a backer rod it is recommended that the use of an alternative bond breaker be used. The use of multiple smaller backer rods or the use of part width or cut down backer rods, will lead to premature joint failure with incorrect sealant thicknesses and excessive joint widths. 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. PU sealants are mistakenly used as a bond breaker, where a neutral cure silicone should be installed. Posted By : / hollywood beach marriott beach chairs /; Under :nars air matte blush torchnars air matte blush torchCorrect joint depth can be established by inserting polyethylene based Sika® Backer Materia,glass rod,etcl tightly into the joint. It is commonly used in applications such as expansion and contraction joints, curtain walls, construction partitions, parking decks and bridge construction. 1 Porous substrates 8 4. Apply sealant into joint slot in one direction and allow sealant to flow and level out as ne-cessary. 2. The sealant does not adhere to it, and no separate bond breaker is required. Use a sealant backing or bond breaker tape to eliminate "three-sided adhesion. bond breaker tape sealant. Suitable as a back-up filler for most liquid sealants Ideal for stopping contaminants such as soil entering into expansion slots and joints. Suitable for use with Bastion waterproofing membranes. Clean and dry the joint or crack and install a new bond breaker before placing the sealant. Suitable for most water-based paints. Self Adhesive Butynol Tape that is the ultimate in bond breaking. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. Clean all surfaces. Latex sealant used with silicone sealant to provide bond breaker for use where minimal depth is available. 5 Bond Breaker Rod: The bond breaker rod shall be a closed cell, expanded polyethylene foam rod of the size and dimensions shown in the Plans. In joints too shallow to take a backer rod, use a bond breaker tape to prevent three-sided adhesion. Compare. 9 mm) wet coat extending a minimum 35mm either side of the bond breaker tape must be applied as an extra coat. 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 clear or translucent type of packing tape is preferred and can be purchased from most Dow silicone pavement sealant distributors. BUTT JOINTS: if you would like to install a butt joint, due to its high risk of movement joint failure. The joint slot width when 4. Joint Design: Proper joint design for moving joints is 2:1 width to depth ratio (typical), with a recommended 1/4 inch (6 mm) minimum and 1/2 inch (13 mm) maximum depth of sealant. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. Without bond breakers, the joint sealer tears apart from movement. 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. Most substrates only require priming if sealant will be subjected to water immersion after cure. A. Wrapped Mesh Embedded in Base Coat. Open cell polyurethane foam or closed cell polyethylene Bastion 300ml Bond Breaker Joint Sealant (0) $9. Install bond breaker tape where required by manufacturer's recommendations to ensure that sealants will perform as intended. 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. Consisting of a unique grade of rubber, the Bondbreaker Waterproofing. Bond breaker tape is black polypropylene tape that provides an option to break the bond of the sealant between the joints between the surfaces of the concrete. " The sealant should bond only to the substrates that will be moving. Service temperature -50˚C to +120˚C. A. Bond Breaker or Backer Rod Installation: Install bond breaker or backer rod as specified to regulate depth of sealant. narrow joints. Still Not Sure? Call our 7 Day. Simply apply the sealant directly over FIBRE EXPANSION JOINT. Install bond breaker tape over substrates when sealant backings are not used. Control the depth of the sealant by using a Backer Rod that is 25% larger than the joint opening at its median temperature. Visit your local store for the widest range of products. 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. An inherent bond breaker – When using sealants, no bond breaker is needed. B. Find out more. A roughened surface will also enhance bond. 5”use a 1:1 width to depth ratio and joints wider than . Always use bond breaker tape or closed cell backer rod for support on horizontal joints. Waterproof – Nomaflex will not absorb water and will remain in place for years. Two sided adhesion allows sealant to stretch with joint movement. 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. Usage. The cured sealant. 2 Bond Breaking Tapes PART 3 EXECUTION 3. D. • For use as a bond breaker or general purpose construction sealant. e. Figure 1. Rp5. Customer Service: 1. 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. 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. Self-adhesive, non -woven, polyester fabric for strengthening membranes. Deep joints should incorporate a backing strip such as Sika PEF Rod to support the sealant while also acting as a bond breaker. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. g. Compressible Joint Sealant : Install compressible sealant in joint to depth recommended by manufacturer. In this case, the use of SNAP-CAP, KOOL-ROD, or a bond-breaker tape is not necessary. This is when the sealant improperly adhereds to the bottom and sides of the joint, restricting movement. Therefore, sealing joints must be considered maintenance parts which require a periodical inspection. Soft backer rod should be approximately 25% larger in diameter than the joint width. Also performs as the bond breaker for the waterproofing system. 3. 1-800-474-7570 [email protected]. •A thin bead of sealant (1/4" ± 1/8"Customer Service: 1. 4. Poor Joint Design . 3. Jakarta Barat Mulia Jaya Packing. Acting as the required system "bond breaker", the B50 Joint Band will accommodate movement in longitudinal, lateral and transverse directions enabling high elongation, rupture resistance and up to 100% elastic. 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. Acceptable types of bond breakers shall include: (a)Closed cell expanded polyethylene foam backer rod. 2 cm) thick. External walling and cladding Expandafoam Closed Cell is used as a backing strip forMasterSeal NP 2 sealant. Primers may be applied to the sides of joints to provide a good bond between them. 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. If depth exceeds 1/2", use backer rod. 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. joint sealant to the recommended thickness. For green concrete applications control joints must be cut 8 hours prior to sealant. For contraction joints a bond breaker tape or back-up strip must be used. Filler: A sealant backing used behind a back-up rod. • For a joint size larger than 1 inch, the depth should be kept to between . B. No bond or adverse reaction shall occur between the bond2. Joints subjected to hydrostatic pressure must have a solid formed base to provide sealant support. They also keep the contents of tanks, pipes, canals, and dams in. construction or contraction joints a bond breaker tape or back-up strip should be used. Because many backup materials act as bond breakers, a separate bond breaker material is not always required. When cured it forms a tough, flexible seal and bond, capable of cyclic expansion and compression movement. 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. Bond breaker tape or backer rod must be used in bottom of joint to prevent bond. Product Downloads. The rainscreen principle attempts to: prevent wind-driven water from breaching a curtain wall by equalizing the air pressure on both sides of the wall. Product code: 305534. The maximum depth is ½” (13 mm) and the minimum is ¼ inch. Visit your local store for the widest range of products. 2. Add to Cart. Required For Construction Joints (D=Conc. Types of bond breakers. It is important for the sealant to bond to joints in two places so it can expand properly. 5”. bond breaker to prevent 3-sided adhesion. Let us know what you think! If you. Proper design is 2:1 width to depth ratio. Sealant Pouring Fill the sealant in the ready joint by hand or. other potential bond breakers. Most substrates only require priming if testing indicates a need. Maximum sealant depth is 12mm and width is 38mm. - An extra 900-micron (0. The 2” sealant tail shall be pulled at an angle of 90° or more from the wall face until the. 8 WARRANTY: A. to internal corners and changes in wall/wall; hob/wall junctions, pipe penetrations, tap bodies, water stops, drainage outlets or similar • Bond breaker joints must be a minimum 12mm x 12mm coved bead of sealant. Bond breakers are commonly used for tilt-up walls and precast segments so that the right pieces are cast together. Bastion 300ml Bond Breaker Joint Sealant (0) $9. Backer rods should be closed-cell polyethylene foam. Publications are referenced in text by basic designation only. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions, and general areas subject to movement. Thick. As the sealant joint width becomes larger than 1", the depth should be held to approximately 3/8". See full list on ncma. Also avoid applying sealants inBond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for. Tool as required, although minimum tooling is necessary. 6. Consult mm) and width is 1/4 in. Simply raking debris out of the joint with hand tools is not sufficient. It is important for the sealant to bond to joints in. Thioflex 600 multi-component joint sealant is based on a liquid polysulphide polymer, which when mixed and applied, cures to form a tough, rubber-like seal. High strength while remaining elastic. act as bond breakers, which allow the silicone sealant to move freely with the joint. Available in a 300ml cartridge and as a 600ml sausage. is a cus tom extrusion or mold made of higher durometer silicone rubber used in custom applications. Features Snapshot. 1. 5m / 3. Tooling: 915 comes ready to use. Natural bond breaker; Bitumen-free and rot-proof; POLYBOARD. 1. The number of joints and the joint width should be designed for a maximum of ± 35% joint movement from the initial joint width. DIVISION 7 2 Joint Sealant 07 92 00Joints without Bond Breaker– three sided adhesion causes joint failure. The joint filler sop shall be of a closed cell expanded polyethylene foam backer rod and polyethylene bond breaker tape of sufficient size to provide a tight seal. Bastion 100mm x. contraction to maximize accommodation of movement. Add to Cart. 3. Note: Not recommended for fire applications. Reinforcing Mesh Embedded in Base Coat G. 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. If the sealant bonds in the wrong areas, it may tear or stretch to the point of failure. In fact, some types of joint fillers can serve as a backing material and bond breaker, in which the applicator can apply the sealant directly on the filler. Nomaflex does not impede cure time. D. Tough, elastic, rubber-like seal. Consisting of a unique grade of rubber, the Bond Breaker Waterproofing Joint. Add to Cart. Bastion 100mm x 10m Bond Breaker Waterproofing Joint Band (1) $25. 5” use a 2:1 width to depth ratio to accommodate movement. Install bond breaker tape or backer rod to prevent bond at base of joint. This ensures the correct and uniform sealant depth along the whole length of the joint. Priming is typically not necessary. 1 DESCRIPTION: A. Do not use bond breaker that will stain or adhere to the sealant. 1-11 Legend A. CHARACTERISTICS / ADVANTAGES Easy application by brush or sprayer Non -. • Use backer rod or bond breaker tape to eliminate a situation of "three‐sided adhesion" • Use 2:1 width to depth ratio to accommodate more movement than a thick joint (i. First, backer rod acts as a bond breaker, meaning it allows the sealant to adhere to the walls of the joint and not the bottom. Priming Fosroc Primer MS2 is required for joints that are to beNeutral cure silicone used as a bond breaker. Dimension C must be at least 6 mm (1/4”). 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. There are two important factors to remember when applying sealant. enhance bond. (See Figure 1, page 27. 4. 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. Ideally this should be accomplished by mechanical means. Sikaflex-11 FC Sikaflex®-11 FC is a one part, moisture curing, elastic joint sealant and multipurpose adhesive based on. 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. substrate. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. 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. The sealant joint shall fully embed the bond breaker tape, extending 1/4” (6 mm) to 3/8” (10 mm) beyond the endUse joints greater than the minimum of 1/4 inch (6 mm width), since wider joints can accommodate more movement than narrow joints and can also result in a greater joint spacing. 4. Publications listed below form a part of this specification to extent referenced. Joint-Sealant: One-part silicone sealant, having a joint movement capability of plus-or-minus 100% elongation, minus 50% compression, and Shore A durometer hardness of 15. If joint depth does not allow for backer rod installation, use polyethylene bond breaker tape. 800. D. Rod Closed Cell provides bond breaking, assists in the control of joint depths for correct joint design and re-ducing sealant consumption. 375” to 0. 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. JOINT DESIGN QUIKRETE Polyurethane Sealants A thin bead of sealant will accommodate more movement than a thick bead. 5 Butyl Rubber Based 2. Acting as the required system "bond breaker", the B50 Joint Band will accommodate movement in longitudinal, lateral and transverse directions enabling high elongation, rupture resistance and up to 100% elastic. 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. • Excessive sealant depth will result in. 3. Acting as the required system "bond breaker", the B50 / B10 Joint Band will accommodate movement in longitudinal, lateral and transverse directions enabling. Vetoflex PU780 is one part, moisture curing, low modulus elastomeric joint sealant based on polyurethane. Compatible with Davco K10 Plus, Davco K10 Rapid and Davco Dampfast. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. Backer rods are excellent at controlling the amount of sealant used or the depth of the sealant in a gap. High recovery rate. Use a size that will compress at least 25% when inserted into the joint. Proper design is 2:1 width to depth ratio. PRIMING3. 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. provides a non-stick surface to prevent sealant 3-sided adhesion. Masking tape When the sealant is applied in the joints, the sides of joint may be damaged by spreading of sealant. Typically there are three components to the Bond Breaker System; a Fillet; bond-breaker tape and a waterproofing membrane. 75 . Sikasil® is Sika’s line of professional-grade silicone sealants that are ideal for applications including glass-to-glass and glass-to-metal surfaces. Place bond breaker tape in the bottom of the saw cut joint after it is cleaned and dried. )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. )SECTION 07 9200 - JOINT SEALANTS. Plus, it will retain its original diameter and is non-gassing when exposed to high sealant temperatures. 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. Help centre;Crommelin Reinforcing Fabric is a non-woven, rot proof polyester fabric for use in conjunction with Crommelin liquid applied waterproofing membranes. 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. Add to Cart. 1. 5 inches (38 mm). The backer rod most importantly acts as a bond breaker, preventing what is commonly referred to as three sided adhesion. Do not prime or puncture the backer rod. Bond Breaker Tape is used in joint sealing applications to ensure sealant only adheres to two faces of the joint. When cured it forms a tough, flexible seal and bond, capable of cyclic expansion and compression movement. 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. Install bond breaker tape or backer rod to prevent bond at base of joint. Visit our Shop Online page to learn more. Ad. Master Wall® System Latex Sealant as Bond the joint shall be mechanically cleaned by water or sand blasting. essential that bond breaker tape or polyethylene closed cell backer rod be used to regulate joint depth and prevent three sided adhesion. They can be flexible sealants in the form of liquid, spray, rods, or tapes. 000. 2 mm) thick, and has high adhesion to steel or other structural metals. 000. Also avoid applying sealants in ambient conditions where threat of rain is imminent. 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.