Provide backup material that is a compressible, non-shrinking, non-staining, non-absorbing material, nonreactive with the joint sealant. 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. Still Not Sure? Call our 7 Day. $9. 1. 5”use a 1:1 width to depth ratio and joints wider than . When sealing joints and gaps, avoid three-sided adhesion by using bond breaker tape and/or backer rod. The ratio of joint width of sealant to depth should be 2:1, however, in all cases, the sealant must be no wider than 30mm or deeper than 5mm. Available in a 300ml cartridge and as a 600ml sausage. Apply sealant into joint slot in one direction and allow sealant to flow and level out as ne-cessary. 375” to 0. 421. The bond breaker tape stops the sealant from adhering to the surfaces and prevents three-sided adhesion. JOINT PREPARATION The joint surface must be clean, dry and free from oils, loose mortar, laitance, release agents and other contaminants. Features. Bond breaker tape prevents adhesion to the back of shallow three-sided joints, which can cause splitting failure in the sealant. JOINT DESIGN QUIKRETE Polyurethane Sealants A thin bead of sealant will accommodate more movement than a thick bead. Acceptable types of bond breakers shall include: (a)Closed cell expanded polyethylene foam backer rod. Cut spout or tip to desired bead size. To prevent the sealant adhering to the base surface or filler board, apply Bond Breaker Tape along the whole width / length of base of the joint. 10 WARRANTY SPEC WRITER NOTES: 1. 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. Bostik’s recommended sealants • Bond breaker is to be installed over the dry primer coat where a bond breaker joint is required, e. This reduces cost and improves installation time. Bond breakers should be utilized with deep joint applications. 1-800-474-7570 [email protected]. Silicone WP Plus • Neutral cure, anti-fungal formulation. Bond Breaking. Emer-Proof Joint Seal Tape performs as the waterproofing system bond breaker, avoiding the use of sealant beads and backing rod bond breaker methods. For contraction joints a bond breaker tape or back-up strip must be used. JOINT PROTECTION. Product Data Sheet Show all documents. 2 Bond Breaking Tapes PART 3 EXECUTION 3. June 15, 2021 . 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. Joints subjected to hydrostatic pressure must have a solid formed base to provide sealant support. characteristic values of the joint sealant and the adjacent building materials, the exposure of the building elements, their construction and size. 6144. PRIMING3. A thorough wire brushing, grinding,Fastflex (formerly branded as Isoflex) extends the service life of concrete by acting as an insulator in isolation joints and expansion joints while acting as a bond-breaker for sealants. Joint Width E. Proper design is 2:1 width to depth ratio. Bond breaker. It is important for the sealant to bond to joints in. 5. 2 PRIMERS 2. Master Wall® System Latex Sealant as Bond the joint shall be mechanically cleaned by water or sand blasting. Bond Breaker Strips. Bastion 15kg Under Tile. 94. 5-8. Thick. The bond breaker may be incorporated in the backup material. Ideally this should be accomplished by mechanical means. Recommended Backing MaterialsThe bond breaker tape shall be approximately 1/8 inch wider than the nominal width of the joint and shall not bond to the joint sealant. Publications are referenced in text by basic designation only. 2. The use of a bond breaker is not required in expansion joints containing cellular polyethylene joint filler, backing rod (Vetoflex PBR). Features. Protect surfaces with masking tape. - 1 - Types of bond breakers Bond breakers can be flexible sealants like silicone or polyurethane, bond breaker tapes, fabric mesh or foam rods. No bond breaker material; therefore the joint will not. 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. The depth of the sealant joint should be ½ the width of the joint. As elastomeric sealants will not bond to Polyboard PE, the additional need for bond breaker strips is eliminated. 5 m ~ 2. Where hydrostatic pressure exists, only bond breaking tapes must be used, notBond Breakers Bond breakers prevent three-sided adhesion of the seal-ant (i. 5m / 6. Prior to any full-scale application of a subsequent paint, coating, sealer, adhesives sealant, grout, etc. Typically there are three components to the Bond Breaker System; a Fillet; bond-breaker tape and a waterproofing membrane. (See data sheet for the type of sealant to be used). No bond or adverse reaction shall occur between the bond2. joint sealing or in flooring applications such as saw cuts jointing. Pavt. 2. Add to cart. 01 WORK INCLUDED A. ) 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. If this product will be used. 1 + 2+ 1 4 16 11 3 d = w = Unless Specified Otherwise In The Plans4 1 8 4 1 8 Joint Sealant Material To Be As Specified In The Plans 3 d = w = Unless Specified Otherwise In The Plans4 1 8 4 Joint Sealant Material To Be5. The ratio of joint width of sealant to depth should be 2:1. Gripset Betta 4kg Water Plug (0) $57. 4. 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. bead of sealant to seal perimeter of partition. Bond breakers prevent three-sided adhesion of the sealant (i. 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. 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. Add to Cart. Nomaflex does not impede cure time. 1. Sealant that does not bond to the concrete surface of the joint walls, contains voids, or fails to set toJoint Sealant: ASTM D5893. Lightweight – Nomaflex weighs 75%. Note: Not recommended for fire applications. Hotwire 1200W 8m² Heating Mat (0) $1008. 1. Crommelin Bond Breaker Bandage 100mm x 50M Bond-breaker tape made of non-woven polyester fabric called Crommelin Polyfab BB is self-adhesive and intended to be installed over joints, fissures, or other places where structural movement is anticipated. Product code: 305534. Sikasil®-728 SL can be used on. It is a guideline not an absolute rule. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. approximately 2” in length shall be made along the sides of the joint. As the temperature falls, the force required to stretch the sealant increases. Compare. 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. 3. They can be flexible sealants in the form of liquid, spray, rods, or tapes. WHAT are Joint Sealants used for ? Joint sealants are used to seal joints and openings between two or more substrates. It’s important to match the sealant contact depth to the type of joints. Rp5. Help centre;Crommelin Reinforcing Fabric is a non-woven, rot proof polyester fabric for use in conjunction with Crommelin liquid applied waterproofing membranes. 800. Bond breaker tapes are obtainable in the mentioned width:15 mm,. 5 m ~ 1. When you’re in need, we’re here to help!Features. Follow these guidelines when placing the sealant: a. 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. This type of tape is made of polyolefin, or Teflon, and. Bond Breaker for extra protection. Polyethylene tape is commonly used as bond breaker tape. Email Us. Bond height. Featuring the central “Flexible Zone” the Aquaband can accommodate movement in longitudinal, lateral and transverse directions enabling high elongation,. The backer rod also acts as a bond breaker to keep the caulking from sticking to the bottom of the opening—called a three-sided bond—with the caulk only adhering to the sides of. Tel: +61 3 9279 9333. Bond breaker systems can be optimized by installing foam backing rod in the junctions, on top of the cured membrane, before laying the screed. Provide bond breaker (tape or rod). From 12 mm wide to 24 mm wide the depth should be 12 mm,. Use only the correct backer rod size. Expansion/Contraction: 50% (±25%) as per ASTM C719. 1 SEALANTS 2. Customer Service: 1. Using braided sealant backing to compensate for a joint opening that is too large for the backing material. Home DIY; Waterproofing. Where the joint configuration will not permit a backer rod, CHEM LINK recommends that an alternative bond breaker be used. Available in a 300ml cartridge and as a 600ml sausage. 3. The 2” sealant tail shall be pulled at an angle of 90° or more from the wall face until the. 1 Porous substrates 8 4. Three face adhesion can be prevented by using bond breakers. 3 Hot rolled acc. For nonmoving joints, the width to2. Excellent adhesion; Flexible joint sealant; Single compone; Footer Menu. contraction to maximize accommodation of movement. This ensures the correct and uniform sealant depth along the whole length of the joint. • 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. • For joints subject to puncture by high heels or umbrella points, a stiffer or higher density backup material is required. 3. Install shower angles and door angle, glue into position with sealant. - Low moisture absorption. Bond Breaker Strips. Suitable substrates for Sikasil®-728 SL are concrete, steel, glass, aluminium, masonry, asphalt, brick, natural stone and others. 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). General purpose polyutherane exterior grade joint sealant. It shall be compatible with the joint sealant and no bond or reaction shall occur between the rod and the sealant. ® cord. Protect surfaces with masking tape. and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance. First, backer rod acts. Use a sealant backing or bond breaker tape to eliminate "three-sided adhesion. Industry standard is 5-year warranty for urethanes and horizontal silicones; 20 years for vertical silicones. Most substrates only require priming if testing indicates a need. The sealant does not adhere to it, and no separate bond breaker is required. 6 ENVIRONMENTAL REQUIREMENTS 1. They are also used over movement joints. A backing material shall be placed as shown on the plans and shall be nonadhesive to the concrete or the sealant material. Type 2A Sealant: One-part acrylic or elastomeric sealant for sealing small joints; PTI 200 or Tremco Small Joint Sealant, Pecora AC-20. Meets ASTM C920, Type S, Grade NS,. The sealant thickness and bond thickness shall be measured and recorded. Joint Sealant: Mildew-Resistant, Single-Component, nonsag, acid-curing silicone joint sealant, Greenguard certified White Lightning All Purpose Silicone Sealant. substrate. 4. Bond breakers are commonly used for tilt-up walls and precast segments so that the right pieces are cast together. to maintain the recommended sealant depth, install backer rod by compressing and rolling it into. B. Products. Sealants can help pre-Joints shall be designed with a depth to width ratio of 1:2 (joint depth one-half the width). b. Masking: Mask adjacent surfaces to prevent staining or damage by contact with sealant or primer. If the sealant bonds in the wrong areas, it. bond breaker joint can be over coated . For expansion joints, sealant manufacturers recommend that the contact depth should be equal to one-half the sealant joint width. PTFE joint Sealant 4mm x 12mm / Expanded super seal with Glue. Contact CRL Customer Service. Joint Width Inches (mm) Joint Depth. With a bond breaker tape in between the joint sealant and joint filler, free movement can be achieved. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. e. 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. It is important for the sealant to bond to joints in. Neutral cure silicone used as a bond breaker. • Sanitary grade for interior and exterior use. For green concrete applications control joints must be cut 8 hours prior to sealant. 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. 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. The backer rod acts as a bond breaker, preventing what is commonly referred to as three. General purpose polyutherane exterior grade joint sealant. E. Where hydrostatic pressure exists, only bond breaking tapes must be used, not foamed back-up. Bostik’s recommended sealants • Bond breaker is to be installed over the coat where a bond breaker joint is required, e. Bond Breaker or Backer Rod Installation: Install bond breaker or backer rod as specified to regulate depth of sealant. An inherent bond breaker – When using sealants, no bond breaker is needed. 4 Neoprene SECTION 07 92 00 Page 1. to prevent joint depths from exceeding ½ in (13 mm). Bastion 300ml Bond Breaker Joint Sealant (0) $9. Sealant backing. contraction joints a bond breaker tape or back-up strip should be used. a low-range sealant used for filling or closing a seam, crevice or crack in order to make it watertight and airtight. Most substrates only require priming if sealant will be subjected to water immersion after cure. 94. If using a sealant, use a scraper to flatten the corners. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. 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. For use with all Bastion Waterproofing Membranes. We also provide all type of joint sealants. , Inc. 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. 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. 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. e. 3. Bastion 100mm x 10m Bond Breaker Waterproofing Joint Band (1) $25. sound substrate capable of developing optimum bond with joint sealants. 3 mm). 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). Innovative detailing system designed for waterproofing and sealing all types of joints, junctions and general areas subject to movement. 01 SECTION INCLUDES. Acceptable types of bond breakers shall. minimum 12mm x 12mm coved joint. For use with all Bastion Waterproofing Membranes. c. WPA MS is a single component, moisture cured silane modified hybrid sealant free of solvents and isocyanates, with a very low VOC content. Dunlop 1L Multipurpose Water Based Primer (0) $25. Tough, elastic, rubber-like seal. used. 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. The ratio of joint width toVetoflex PU780 is one part, moisture curing, low modulus elastomeric joint sealant based on polyurethane. )it into the joint channel without stretching it lengthwise. Contact CRL Customer Service. 5 DELIVERY, STORAGE, AND HANDLING 1. When a bond. Acts as the bond breaker for the waterproofing system eliminating need for other sealants/tapes. custom crochet animals / leyland cypress hedge / bond breaker tape sealant. 1/4” deep (6mm X 6mm). Bond breaker tapes are available in following width:15mm, 20mm, 25mm, 50mm. 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. 3 BOND BREAKERS 2. 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. Priming Priming is not usually necessary. High elasticity – cures to a durable, flexible consistency with exceptional cut and tear-resistance. Closed cell backer rod should be 25 % larger than joint width; do not compress more than 40 %. Approval of the backer rod or bond breaker tape shall be made by the manufacture and engineer. A. Apply joint sealants in uniform, continuous ribbons without gaps or air pockets, with complete "wetting" of joint bondstructure. R. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. The portion of the sleeper slab on which the polyethylene bond breaker is to beClick 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, electrical, gas fitting, handyman services, appliance repairs, bathroom renovation and much more. 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. Let us know what you think! If you. Eliminates the need for bond breaker sealants. The B50 Joint Band is easy to install and provides for considerable time saving efficiencies and durable properties over conventional bond breaking sealants and tapes. 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’*. Add to Cart. to EN 13108-1 and mastic asphalt acc. 94. • For a joint size larger than 1 inch, the depth should be kept to between . SEALING OF LARGE MOVEMENT JOINTS HYPALON SHEETING COMPATIBLE, PROVEN ADHESIVE SEALANT BOND BREAKER TAPE CONCRETE SEALANT BACKER ROD (COMPRESSED. CURE & TILT WB is used as a cure and bond breaker in tilt-up, lift-slab, and precast concrete construction. Always use bond breaker tape or closed cell backer rod for support on horizontal joints. Install bond breaker tape or backer rod to prevent bond at base of joint. 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. This allows membrane release from the bond breaker, into a compressible medium. Both the structure and the sealant will expand and contract with temperature changes. Tool as required, although minimum tooling is necessary. Expansion/Contraction: 50% (±25%) as per ASTM C719. used. construction or contraction joints polyethylene bond breaker tape or back-up strip must be used. Working joint depths should never exceed 1/2" (12 mm) or be thinner than 1/8" (3 mm). Natural bond breaker; Bitumen-free and rot-proof; POLYBOARD. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease and any other contaminants. 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. To prevent three-point adhesion use a backer rod or bond breaker tape to ensure proper joint movement and a long lasting weatherproof seal. PAGE 2. Joint Depth The joint must be deep enough to allow proper placement of the sealant and a bond breaker/backer rod. 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. Figure 4 shows a section of sealant removed from a failed joint. 03 APPLICATION A. Waterproof – Nomaflex will not absorb water and will remain in place for years. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions, and general areas subject to. 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. EDP-0977(653)--7Y-29 . Use CRL Bond Breaker Tape to create proper two-way sealant bonds. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. Elastic reinforcement essential for the critical movements areas. may be required to remove surface PRODUCT DESCRIPTION QUIKRETE Advanced Polymer Concrete Crack Sealant is a superior, textured, one-component, permanently flexible, multipurpose sealant. Primers may be applied to the sides of joints to provide a good bond between them. - Gives proper shape to sealant for effective function. the joint and completely fill the joint without spilling the material on the surface of the pavement. 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. D. 3 Primer Application 8 4. WPA MS is a single component, moisture cured silane modified hybrid sealant free of solvents and isocyanates, with a very low VOC content. Purchase Bastion 300ml Bond Breaker Joint Sealant. The surface of a building component or joint that serves as a substrate for sealant and to which the sealant is bonded. 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. Bond Breakers. Bastion Bond Breaker Joint 100mm either side of joint Wash down with appropriate Sealant should be applied and in the case of a cleaner and flush with fresh to produce 12mm x 12mm designated shower area the water and allow to dry Loose minimum coved bead over total wall area 100mm rose or damaged membranes change of plane joints . 020 8524 1931. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. High strength while remaining elastic. 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. There is no reason why the membrane can’t stick to the bond breaker, provided the bond breaker material is capable of accommodating movement. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. When cured it forms a tough, flexible seal and bond, capable of cyclic expansion and compression movement. Service temperature -50˚C to. Surfaces Walls & fl oors. Compatible with Davco K10 Plus, Davco K10 Rapid and Davco Dampfast. 000. 2 mm) thick, and has high adhesion to steel or other structural metals. 94. 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. Dulux Avista 10L Bluestone Coloured Concrete Sealer (0) $159. To facilitate free movement, it can be achieved by adding bond breaker tape in between the joint sealant and joint. polyethylene bond breaker tape to prevent three-sided adhesion. Backer rods should be closed-cell polyethylene foam. it into the joint channel without stretching it lengthwise. Filler: A sealant backing used behind a back-up rod. 08 APPLICABLE PUBLICATIONS: A. Recommended for all sealant applications with the exception of applications requiring rapid curing from backside. Tape Bond Breaker 1 84 1 8 to D (D=Conc. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. In addition, many backup materials also serve as bond breakers. This is when the sealant improperly adhereds to the bottom and sides of the joint, restricting movement. Uncured material can. Dampfix Platinum Bostik Australia Pty Ltd, Level 1, 6 English Street, Essendon Fields, Victoria, 3041, Australia. For good adhesion, the joint interface must be sound, clean and dry. Bond breakers Bond breakers in the form a tape is made of PVC or metal or paper. USES Sika® BondBreaker W is used for "match-cast", "tilt-up" and "tilt-slab" constructions. 421. This is to ensure a tight compressed fit. A further 2 full coats, at 900bond free, thereby allowing the sealant to adhere only to the sides 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). Function #6: Serve as a bond breaker1. , 11 Saw Cut Or Formed Joint Compression Seal 16" Preformed Elastomeric 9 Not Required For Construction Joints. - Will not discolor sealants or substrates. Avoid brushing on the bond breaker tape. 2. Filler: A sealant backing used behind a back-up rod. 180. 5”. It is commonly used in applications such as expansion and contraction joints, curtain walls, construction partitions, parking decks and bridge construction. Compare. One step in the preparation of a mastic sealant joint is filling or backing out the gap prior to mastic sealant application. The joint slot width when 4. 6144. 3 Synthetic Rubber 2. 0m To ensure that the correct joint width-to-depth ratio is achieved and to prevent the sealant from adhering to the bottom of the joint, it is highly recommended to use a tight- Sikaflex-PRO Sikaflex-PRO is a one component, thixotropic, polyurethane based joint sealant. You can use bond breakers to improve joint performance. 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. Expansion/Contraction: 50% (±25%) as per ASTM C719. Sika Sikaflex 1A Polyurethane Elastomeric Joint Sealant And Adhesive - 20 Ounce Sausage. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. 4. All bond breaker rods installed shall be covered by a sealant at the end of2. The ideal working joint depth is 1/4" (6 mm). (800) 421-6144. 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 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. 2 Bond Breaker Installation 7 4. Compatible with Davco K10. 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. Closed cell backer rod should be about 1⁄ 8" (3 mm) larger in diameter than the width of the joint to allow for compression. joint movement can be accommodated in a thin bead of sealant than in a thick bead. 4 BACKUP MATERIAL. The depth of the sealant joint should be ½ the width of the joint. 1. Discount Sealants, Caulks and Adhesives, Adhesive Sealants, NP1, SL1, Expansion Joint Sealants, Backer Rod, RV sealants, Glass Sealants, Deck and pool Sealants. Joint must be tooled flat or slightly concave. Product Downloads. 11) Bedding The application of mastic to fill gaps or voids. 3 D (D=Conc. 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. Publications are referenced in text by basic designation only. 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. In this con-Compact sealant into joint with a wet wooden spatula and smooth off to the desired finish. 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. sealants are as follows: EIFS, primer, sealant backing or bond breaker, adjacent substrates and sealant (see Figs. A clear or translucent type of packing tape is preferred and can be purchased from most Dow silicone pavement sealant distributors. 421. Terminal joint, type HMA, shall consist of a sleeper slab, concrete lug, polyethylene bond breaker, and pre-compressed foam joint. Bond.