A high-performance Bond Breaker Joint Sealant to. You can use bond breakers to improve joint performance. 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. $9. High recovery rate. 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. Indoor Air Quality For Interior Floor Joint Sealants; S Indoor Air Quality For Interior Acoustical Sealants; S Indoor Air Quality For Interior Caulking; S SECTION 07 92 00. 1. , measured at the center point of the joint width. Bastion 300ml Bond Breaker Joint Sealant (0) $9. Concrete and steel are typical substrates used with bond breakers, as they are non-metallic or metallic anti-stick materials. Tough, elastic, rubber-like seal. It is important for the sealant to bond to joints in. Type 3 bond breakers are effective where membrane application occurs either below, or on top of the screed. Add to Cart. 7 (c) in the Standard doesn’t require a bond breaker at all. Suitable for most water-based paints. 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. Help centre;Crommelin Reinforcing Fabric is a non-woven, rot proof polyester fabric for use in conjunction with Crommelin liquid applied waterproofing membranes. surface conditioner or primer, type of sealant backing material, bond-breaker, and joint ®ller, among others. Priming is typically not necessary. No bond or adverse reaction shall occur between the bond2. characteristic values of the joint sealant and the adjacent building materials, the exposure of the building elements, their construction and size. Sealants will fail in cohesion (split) if bonded on. to maintain the recommended sealant depth, install backer rod by compressing and rolling it into. 3 BOND BREAKERS 2. 1. 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. Compare. Control the depth of the sealant by using a polyethylene backer rod that is 25% larger than the joint opening at standard temperature. Back-up Rod: A type of sealant backing. Bond Breaker Strips. Still Not Sure? Call our 7 Day. 2. CHARACTERISTICS / ADVANTAGES Easy application by brush or sprayer Non - Hazardous, Non Toxic Non - Staining Customer Service: 1. Apply sealant using consistent, positive pressure to force sealant into the joint. Where hydrostatic pressure exists, only bond breaking tapes must be used,Bastion 300ml Bond Breaker Joint Sealant (0) $9. Bond Breakers or masking tape Bond breakers prevent three-sided adhesion of the sealant (i. Bostik’s recommended sealants • Bond breaker is to be installed over the coat where a bond breaker joint is required, e. 800. Bond Breaker Polyethelene Tape Black Roll used in shallow building joints to prevent 3 sided adhesion. Features & Benefits. 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. 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 . b. Expansion/Contraction: 50% (±25%) as per ASTM C719. 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. 3 mm). 5m / 3. Bond Breaker: When required, pressure-sensitive polyethylene tape, teflon tape, or other plastic tape as recommended by the sealant manufacturer for the location, to prevent bond of sealant in heel of joint. In joints too shallow for backer rod, use a polyethylene bond-breaker tape to prevent three-sided adhesion. For example, joints in concrete sidewalks can be subject to concentrated loads due to high heels. Bond Breakers: A type of sealant backing. 800. Suitable Surfaces & Substrates. Increasing the width (W) of the joint and decreasing the depth (D) generally reduces. bond breaker joint can be over coated . Clean all surfaces. 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. It is important for the sealant to bond to joints in. 421. 1 Rubber 2. Bond Breaker Strips. Waterproof – Nomaflex will not absorb water and will remain in place for years. Bastion 100mm x 10m Bond Breaker Waterproofing Joint Band (1) $25. 1. Long term sealing protection at volatile areas. PART 3 - EXECUTION 3. preventing pipe from contact with the outer sleeve. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. Maximum sealant depth is 12mm and width is 38mm. sealants are as follows: EIFS, primer, sealant backing or bond breaker, adjacent substrates and sealant (see Figs. The 2” sealant tail shall be pulled at an angle of 90° or more from the wall face until the. Sika® Foam Backer Rod Closed Cell is manufactured from closed cell, low density, polyethylene foam. 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. e. Tool sealant to ensure full contact with joint walls and remove air. 2. Add to Cart. 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. C. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease and any other contaminants. Ad. Filler: A sealant backing used behind a back-up rod. 73. Avoid brushing on the bond breaker tape. Install bond breaker tape or backer rod to prevent bond at base of joint. For joints greater than 1 inch (25. 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. 7 We r eh NA 1740 ends on any penetration, apply a bead of silicone or urethane sealant. Often necessary because of the sealant in-compatibility with these forms of fillers. 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. Bond Breakers. Sikasil® is Sika’s line of professional-grade silicone sealants that are ideal for applications including glass-to-glass and glass-to-metal surfaces. polyethylene bond breaker tape to prevent three-sided adhesion. 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). Master Wall® System Latex Sealant as Bondthe joint shall be mechanically cleaned by water or sand blasting. Cork or rigid non-The bond breaker is applied in joints where walls meet floors or two walls meet in a corner. Natural bond breaker; Bitumen-free and rot-proof; POLYBOARD. Three-sided adhesion can be eliminated by the addition of a bond breaker tape or backer rod. 94. Approved bondbreaker system conforming to AS 3740; Time saving simplified installation • Eliminates need for sealant bondbreakers and tapes 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. C. 5 m ~ 4. (813 mm) apart. Compatible with Davco K10. The product should be used where appearance. •A thin bead of sealant (1/4" ± 1/8"Customer Service: 1. Where the joint depth does not permit the use of backer rod, a bond breaker (polyethylene strip) must be used to prevent three-point bonding. b. Product Downloads. Sikaflex-1a can be used in green and damp concrete applications. EXPANSION AND CONTROL JOINTS Sealant (depth is 1/2 width). Innovative detailing system designed for waterproofing and sealing all types of joints, junctions, and general areas subject to movement. Add to Cart. 02. )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. Bond breaker tapes are obtainable in the mentioned width:15 mm,. SEALING OF LARGE MOVEMENT JOINTS HYPALON SHEETING COMPATIBLE, PROVEN ADHESIVE SEALANT BOND BREAKER TAPE CONCRETE SEALANT BACKER ROD (COMPRESSED. C. Contact CRL Customer Service. 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. Joints subjected to hydrostatic pressure must have a solid formed base to provide sealant support. JOINT PROTECTION. 2. These ensure that: adhesion is between the substrates only (no perpendicular stress. Publications are referenced in text by basic designation only. CURE & TILT WB cures the concrete floor or casting slab and top sides of panels once poured. 9 mm) wet coat extending a minimum 35mm either side of the bond breaker tape must be applied as an extra coat. These sealants cure upon exposure to moisture in the air to form aThis product acts as a powerful bond breaker in the prevention of bottom-side sealant adhesion. 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. Because many backup materials act as bond breakers, a separate bond breaker ma-terial is not always required. Visit your local store for the widest range of products. Pavt. 94. 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. 15 (After two weeks @ 190°F)Expanded PTFE joint sealant - Super Seal PTFE 3mm x 10mm x 15 m. Expansion/Contraction: 50% (±25%) as per ASTM C719. Open cell polyurethane foam or closed cell polyethylene Bastion 300ml Bond Breaker Joint Sealant (0) $9. 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. Pavt. Compatible with Davco K10. 375” to 0. This question is taken from book named – A Self Learning Manual – Mastering. Add to Cart. Proper joint design is 2:1 width to depth ra-tio. Easy Seal Bond Breaker is a waterproof sealing band that is used at. It is 2. It is suitable for movement and connection joints for indoor and outdoor applications. 3 Hot rolled acc. 4. EXAMINATION. g. - 1 - Types of bond breakers Bond breakers can be flexible sealants like silicone or polyurethane, bond breaker tapes, fabric mesh or foam rods. It is important for the sealant to bond to joints in two places so it can expand properly. Features. The backer rod acts as a bond breaker, preventing what is commonly referred to as three. Priming is typically not necessary. Emer-Proof Joint Seal Tape is a wet area grade elastic joint bandage, designed for use in waterproofing critical movement zones within internal and external wet areas. Tool as required to properly fill joints and force sealant against joint interfaces, maximizing bond. 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. 3. 2:1 width to. , the vendor recommends appropriate field testing be performed to verify that all desired/required appearance. 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. 08 APPLICABLE PUBLICATIONS: A. Pavt. narrow joints. 2. Consultmm) and width is 1/4 in. 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. breaker tape to isolate FIBRE EXPANSION JOINT from the joint sealant material. 605-2. narrow joints. minimum 12mm x 12mm coved joint. 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. The sealant does not adhere to it, and no separate bond breaker is required. 5-8. Bond breaker tapes are available in following width:15mm, 20mm, 25mm, 50mm. Sealant Pouring Fill the sealant in the ready joint by hand or. Bandage seal (Bandage joint) The application of sealant across a joint which is not designed to accommodate a sealant (see fig. 2. All joint facings must possess an open surface texture. PTFE joint Sealant 4mm x 12mm / Expanded super seal with Glue. Unlike AIFB joint filler products, Nomaflex is: 1. Bond Breakers: A type of sealant backing. Elastoproof B50 / B10 - Bond Breaker Joint Band. 4. Do not prime or damage the surface of the bond breaker. • Neutral cure – will not corrode concrete or zinc coated. 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. bond breaker joint can be over coated . 1. - 1 - Types of bond breakers Bond breakers can be flexible sealants like silicone or polyurethane, bond breaker tapes, fabric mesh or foam rods. A high performance joint sealing system comprised of fully compatible materials with proven adhesion, designed to meet the needs of these high movement and often irregular joints, is called for. For most effective results, dura. Pre-Installation Conference—Many specifications re-quire that a pre-installation conference be held among the parties involved in the joint sealant construction, includinggetter. $9 . e. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. Euco 700 Sealant Calculator. 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. 1-11 Legend A. A. The joints should be sized so maximum extension and compression does not exceed +100 and -50 percent respectively. Add to Cart. Maintain Section format, including the UH master spec designation and version date in the center columns of the header and footer. ® cord. 2. In joints too shallow for backer rod, a bond-breaker tape should be used to prevent three sided adhesion. Sealing joints must be accessible and repairable. Joint dimensions should allow for 6 mm (1/4 in) minimum and 13 mm (1/2 in) maximum depth of sealant. Always use bond breaker tape or closed cell backer rod for support on horizontal joints. Available in a 300ml cartridge and as a 600ml sausage. 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. Install tap flanges. PAGE 2. A roughened surface will also enhance bond. Bond Breakers: A type of sealant backing. PU sealants are mistakenly used as a bond breaker, where a neutral cure silicone should be installed. , measured at the center point of the joint width. Joint Sealant Material To Be 8") (w +1 Tape Bond Breaker Or Existing Joints Or Cracks. Back-up Rod: A type of sealant backing. 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. Third, it provides support for the joint sealant. Most substrates only require priming if sealant will be subjected to water immersion after cure. When a bond. For contraction joints a bond breaker tape or back-up strip must be used. 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’*. 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. 3. Yield proper bond breaker between the backup material and sealant. Use bond breaker tape over the backer material. Apply the right amount of sealant. Where hydrostatic pressure exists, only bond breaking tapes must be used, not foamed back-upNeutral cure silicone used as a bond breaker. When cured it forms a tough, flexible seal and bond, capable of cyclic expansion and compression movement. Sealants can help pre-Joints shall be designed with a depth to width ratio of 1:2 (joint depth one-half the width). This is when the sealant improperly adhereds to the bottom and sides of the joint, restricting movement. This is when the sealant is adhered to the bottom and both sides of the joint. It is important to place the sealant in its designed location for the system to function. 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. 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. They can be flexible sealants in the form of liquid, spray, rods, or tapes. Deep joints should incorporate a backing strip such as Sika PEF Rod to support the sealant while also acting as a bond breaker. B. 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. g. From 12 mm wide to 24 mm wide the depth should be 12 mm,. 01 EXAMINATIONJoint dimension should allow for 1/4” minimum and 1/2” maximum thickness for sealant. 5”. Sealant bead should be a minimum 1/4 inch (. 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. Economical Easy to install Readily compressible Rot proof and non-absorbent Provides bond breaker and minimum strain shape for joint sealants Provides a firm backing for sealant tooling Advantages The use of Expancell will also act as a bond breaker at the base of the joint thus preventing three sided adhesion and the accompanying additional. Bastion 100mm x 10m Bond Breaker Joint Band is a. 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. The backer rod most importantly acts as a bond breaker, preventing what is referred to as three sided adhesion or three point bonding. rods, typically composed of polyethylene, Figure 1 – Double backer rod and sealant joint section. 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 polyethylene bond breaker shall be an approved polyethylene sheeting having a thickness of 6 mils or greater. 1-11). cord must be inserted into the joint to a depth that will accommodate the depth of sealant specified i. This is to ensure a tight compressed fit. •A thin bead of sealant (1/4" ± 1/8" Documents. B. (Vetoflex PBR). Depth = ½ Width. in deep joints, the sealant depth must be controlled by closed cell backer rod or soft backer rod. Use a size that will compress at least 25% when inserted into the joint. 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. Self Adhesive Butynol Tape that is the ultimate in bond breaking. - Installs easily and quickly. contraction to maximize accommodation of movement. a. 2 mm) thick, and has high adhesion to steel or other structural metals. Bond Breaker Tape is used in joint sealing applications to ensure sealant only adheres to two faces of the joint. Joint must be tooled flat or slightly concave. Pavt. In addition, many backup materials also serve as bond breakers. Finish Coat F. In this case, the use of SNAP-CAP, KOOL-ROD, or a bond-breaker tape is not necessary. For construction or contraction joints a bond breaker tape or back-up strip should be used. Reinforcing Mesh Embedded in Base Coat G. Sikaflex® PRO is a 1-component, moisture-curing, elastic joint sealant. However, it is important to note that most backer rods can serve as a bond. 03 APPLICATION A. All movement joints shall be recessed 2 mm below flush so that during joint contraction the sealant does not protrude above the surface and so become susceptible to damage from traffic. Compare. Contact CRL Customer Service. 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. You can simply use a bond breaking sealant or preformed bond breaking corner, tape and pipe sleeves. The sealant does not adhere to it, and no separate bond-breaker is required. Prior to sealing, the top strip can then be pulled easily from the joint to provide an uncontaminated sealing slot ready for preparation and sealing. 1. WPA MS is a single component, moisture cured silane modified hybrid sealant free of solvents and isocyanates, with a very low VOC content. Home DIY; Waterproofing. Bastion 100mm x. A roughened surface will also enhance bond. 46. • Excellent substrate adhesion. 180. 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. Priming Priming is not usually necessary. For construction or contraction joints, use a bond breaker tape or back-up strip. Furnish labor, materials, equipment and services necessary to caulk and seal. Add to Cart. Use a Sika PEF backing rod to form the joint base. Apply sealant into joint slot in one direction and allow sealant to flow and level out as ne-cessary. Often necessary because of the sealant in-compatibility with these forms of fillers. 5. Sika Sikaflex 1A Polyurethane Elastomeric Joint Sealant And Adhesive - 20 Ounce Sausage. Joint Width Inches (mm) Joint Depth. Industry standard is 5-year warranty for urethanes and horizontal silicones; 20 years for vertical silicones. Compare. When the joints have been filled with fibre filled board, this must be raked back to the required depth. C. Joints with Bond Breaker. Joint not properly tooled. General purpose polyutherane exterior grade joint sealant. PAGE 1 OF 3 AVD3070 REV 4/05 TABLE 1 - PHYSICAL PROPERTIES Property/Test Methods Value Shore A Hardness, ASTM D-2240. Sealant B. Polyethylene tape is commonly used as bond breaker tape. Excellent adhesion; Flexible joint sealant; Single component; BITUMASTIC GP. 2 Non-porous substrates 8 4. 5 inches (38 mm). The maximum depth is ½” (13 mm) and the minimum is ¼ inch (6mm). The correct size grout joint is also a factor that helps with movement accommodation. Apply moderate pressure to break seal inside the nozzle. • Apply a 150mm wide x 1mm WFT strip of Vulkem NEM un-reinforced. 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. 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. bead. Typical expansion joint Thioflex 600 Pouring Grade Bond Breaker Tape Recess Hydrocorr Typical construction joint Thioflex 600 Pouring Grade Bond Breaker Tape. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. 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. Bond breaker tape prevents adhesion to the back of shallow three-sided joints, which can cause splitting failure in the sealant. 1. Bond. For nonmoving joints, the width to2. contraction joints a bond breaker tape or back-up strip should be used. $9. Sealant that does not bond to the concrete surface of the joint walls, contains voids, or fails to set toJoint Sealant: ASTM D5893. 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. Self-adhesive, non -woven, polyester fabric for strengthening membranes. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. Recommended for all sealant applications with the exception of applications requiring rapid curing from backside. EN 13108-6 8. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. au4. Bond Breakers. Remove any masking tape immediately after applying Paraseal. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. Add to Cart. refer to table 1. For sealing shallow joints Bond Breaker Tape is applied to the bottom of the joint so the sealant will bond only to the walls. Our Jeff Schmucker created a visual to explain the importance of using bond breaker tape in secondary containment systems. The ratio of joint width toVetoflex PU780 is one part, moisture curing, low modulus elastomeric joint sealant based on polyurethane. 6 cm) thick but no greater than 1/2 inch (1. Product Data Sheet Show all documents. 2. (6. External walling and cladding Expandafoam Closed Cell is used as a backing strip forMasterSeal NP 2 sealant. Drawing a bead on proper joint sealing. Allow the primer to dry as per the specification. Soft backer rod should be approximately 25% larger in diameter than the joint width. Backer rod Sealant. Innovative detailing system designed for waterproofing and sealing all types of joints, junctions, and general areas subject to.