94. 6 cm) thick but no greater than 1/2 inch (1. Pavt. From 12 mm wide to 24 mm wide the depth should be 12 mm,. If DOWSIL™ 991 Silicone High Performance Sealant cannot be installed whenProduct Description. 1 litre can, average coverage 10m2Bond breaker and closed cell back-up material for use with joint sealants. 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). With a. 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 (. • For joints subject to puncture by high heels or umbrella points, a stiffer or higher density backup material is required. it into the joint channel without stretching it lengthwise. Joint not properly tooled. No bond breaker material; therefore the joint will not. In joints where polystyrene or bitumen impregnated fillers have been used, Abelflex is ideal as a bond-breaker. Pavt. Fast cure (FC) polyurethanes or Modified Silyl terminated sealants (MS) may. 421. Reinforcing Fabric maximises membrane strength in vulnerable areas such as corners and construction joints and doesn't compromise the flexibility of the waterproofing system. coatings, and any other material that may be a bond breaker must be removed. 3. SEALING OF LARGE MOVEMENT JOINTS HYPALON SHEETING COMPATIBLE, PROVEN ADHESIVE SEALANT BOND BREAKER TAPE CONCRETE SEALANT BACKER ROD (COMPRESSED. Bond Breaker for extra protection. For optimum performance, the width of the sealant bead should be approximately two times the depth. It is commonly used in applications such as expansion and contraction joints, curtain walls, construction partitions, parking decks and bridge construction. Proper design is 2:1 width to depth ratio for movement joints. Compare. Bond Breaker Tape: Catalog number 827T by C. 0-3. Bond breakers should be utilized with deep joint applications. Bond Breaker Polyethelene Tape Black Roll used in shallow building joints to prevent 3 sided adhesion. 1 "Min. 3 D (D=Conc. 3. 5 inches (38 mm). 5 Replacing Existing Sealants 7 4. 80 (400)ELASTOMERIC JOINT SEALANT / ADHESIVE. joint sealant and no bond or reaction shall occur between the rod and the sealant. 2:1 width to. The cured. Follow the manufacturer’s instructions. The primary function of a joint sealant is to prevent the intrusion of un-wanted substances into or through the joint. Second, it aids in achieving an ideal shape of the sealant (e. The mortar in a rigid control joint must be raked out to the proper depth while it is still plastic. other potential bond breakers. g. Allow the primer to dry as per the specification. Compare. Where hydrostatic pressure exists, only bond breaking tapes must be used, not foamed back-upNeutral cure silicone used as a bond breaker. Economic option for Joint Sealant in Waterproofing applications. 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. 4. Polysulfides, silicones, and polyurethanes are examples of: high-range sealants. Step 4: Membrane application. formed joints a polyethylene bond breaker tape must be used to prevent sealant from adhering to the back face of the joint. • Excessive sealant depth will result in. The maximum depth of any sealant shall be 1/2” (13mm). Provide bond breaker (tape or rod). Bond Breaker or Backer Rod Installation: Install bond breaker or backer rod as specified to regulate depth of sealant. The number of joints and the joint width should be designed for a maximum of ± 35% joint movement from the initial joint width. The combined system will satisfy the criteria of AS 3740 “Waterproofing of Wet Areas Within Residential Buildings” when used […] 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. Use a sealant backing or bond breaker tape to eliminate "three-sided adhesion. 7 (c) in the Standard doesn’t require a bond breaker at all. See table below. To ensure free movement in the joint, bond breaker tape is placed between the joint sealant and joint filler. Applying the waterproofing membrane is the final step. 3. Furnish labor, materials, equipment and services necessary to caulk and seal. joints from 6 mm to 12 mm wide, width and depth must be equal. 2. Mastic is a form of sealant or adhesive used to fill the joints or as a bond for different materials and gaps. C. This ensures the correct and uniform sealant depth along the whole length of the joint. 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. (Vetoflex PBR). Back-up Rod: A type of sealant backing. 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) sealing slot before positioning a bond breaker. The bond breaker tape stops the sealant from adhering to the surfaces and prevents three-sided adhesion. 6. Joint dimension of 4X anticipated movement allows proper function of high performance sealants even if applied at temperature extremes. Do not prime or damage the surface of the bond breaker. The sealant does not adhere to it, and no separate bond breaker is required. 4 BACKUP MATERIAL. Where a particularly neat finish is required, mask. Bond The sealant should bond only to the substrates that will be moving. Bastion 100mm x 10m Bond Breaker Waterproofing Joint Band (1) $25. bead of sealant to seal perimeter of partition. 1. 5”use a 1:1 width to depth ratio and joints wider than . 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. Approval of the backer rod or bond breaker tape shall be made by the manufacture and engineer. 9 mm) wet coat extending a minimum 35mm either side of the bond breaker tape must be applied as an extra coat. When a bond. 6144. General purpose polyutherane exterior grade joint sealant. Polyethylene tape for isolating sealant and eliminating adhesion to filler boards Select PARCHEM BOND BREAKER TAPE 15MM x 66M ROLL PARCHEM BOND BREAKER TAPE 20MM x 66M ROLL PARCHEM BOND BREAKER TAPE 25MM x 66M ROLL PARCHEM BOND. cord must be inserted into the joint to a depth that will accommodate the depth of sealant specified i. PART 3 - EXECUTION 3. )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. 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. Soft backer rod should be approximately 25% larger in diameter than the joint width. 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. • For a joint size larger than 1 inch, the depth should be kept to between . Publications are referenced in text by basic designation only. 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’*. Acts as the bond breaker for the waterproofing system eliminating need for other sealants/tapes. Meets ASTM C920, Type S, Grade NS,. with insufficient space in the joints to accommodate backer rod in addition to proper sealant thickness and proper sealant recess. • 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. The work includes caulking and sealing of joints as required to seal the perimeters of openings in walls, penetrations in walls, expansion and control joints, and as required to. Contact CRL Customer Service. e. Filler: A sealant backing used behind a back-up rod. bond breaker joint can be over coated . No bond or adverse reaction shall occur between the bond breaker and the sealant. thickness of sealant, waste, application techniques, etc. Aspal sealant bulk / asphaltic plug , joint sealant rigid beton. Elastoproof B50 / B10 - Bond Breaker Joint Band. To prevent three-point adhesion use a backer rod or bond breaker tape to ensure proper joint movement and a long lasting weatherproof seal. If ambientAsphalt Sealant. Always use bond breaker tape or closed cell backer rod for support on horizontal joints. 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. Figure 2 The width of building expansion joints vary because of seasonal and daily changes in temperature. narrow joints. bridge joint in a variety of applications , including restoration of failed sealant joints. typically up to 25% larger) than the actual width of the joint to provide a friction fitfrom the driving surface and should show necessary joint fill-ers, sealant backing, bond breakers, and bonding surfaces. Excellent adhesion; Flexible joint sealant; Single compone; Footer Menu. Purchase Bastion 300ml Bond Breaker Joint Sealant. Bastion 100mm x 50m Waterproof Reinforcing Fabric (0) $19. Ideally this should be accomplished by mechanical means. Ableflex Expansion Jointing is made from Polythylene Foam and is utilised as an expansion joint or space filler stip as they are also known. Sikaflex®-406 KC is a one-part, self-levelling, elastic joint sealant, with high mechanical and chemical resistance. Get free delivery on eligible items or orders across Australia's favourite brands with OnePass. Joint Sealant 300ml Cartridge| Exterior polyurethane joint sealant, general purpose by. 3 BOND BREAKERS 2. Stress relaxation to prevent splitting at edges. 3 m ConsumptionA low-modulus plastic sealant, such as silicone, may have a ratio of 1:3. ® cord. The installation of solvent based polyurethane joint sealants beneath water based membranes can result in a breakdown in the membrane through solvent release. (813 mm) apart. Thick. EN 13108-6 8. - Compatible with cold-applied sealants. 0-6. JOINT SEALANTS . Visit our Shop Online page to learn more. 6 m ~ 1. 000. 1. Bond breaker tape or backer rod must be used in bottom of joint to prevent bond. 75 . Low VOC Sets in just 2 hoursActing as the required system "bond breaker", the B50 Joint Band will accommodate movement in longitudinal, lateral and transverse directions enabling high elongation,. It’s ideal for sealing expansion and construction joints in vertical and horizontal applications. Also avoid applying sealants inBond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for. Weatherproof, highly flexible and paintable* after it’s cured, it doesn’t need a primer before use. b. Proper design is 2:1 width to depth ratio. PART 1 - GENERAL. 6144. Three-sided adhesion can be eliminated by the addition of a bond breaker tape or backer rod. Rp435. Use CRL Bond Breaker Tape to create proper two-way sealant bonds. 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. (See data sheet for the type of sealant to be used). When sealing joints and gaps, avoid three-sided adhesion by using bond breaker tape and/or backer rod. No bond or adverse reaction shall occur between the bond2. Nitoseal SC600 may bond to the tapes and result in the failure of the joint sealant. Dunlop 1L Multipurpose Water Based Primer (0) $25. When the joints have been filled with fiber filled board, this must be raked back to the required depth. 421. In all joints a bond breaker must be used to prevent sealant contact with the back of the joint, and hence allow optimum performance. Bond Breakers. 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. B. contraction joints a bond breaker tape or back-up strip should be used. g. Customer Service: 1. EXAMINATION. (800) 421-6144. Use only the correct backer rod size. An inherent bond breaker – When using sealants, no bond breaker is needed. Sealants in a rigid control joint with mortar are installed over a bond breaker tape, while sealants in an open expansion joint are installed over a sponge backer rod. used. 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. The type of bond breaker required under the above mentioned. $9. • For a joint size larger than 1 inch, the depth should be kept to between . 1 DESCRIPTION: A. 3. Here, we’re going to. 11) Bedding The application of mastic to fill gaps or voids. A high-performance Bond Breaker Joint Sealant to provide extra protection and flexibility in vital joints for all waterproofing applications. PAGE 1 OF 3 AVD3070 REV 4/05 TABLE 1 - PHYSICAL PROPERTIES Property/Test Methods Value Shore A Hardness, ASTM D-2240. a bond breaker between the casting slab and the tilt-up or lift-slab panel. Pavt. Neutral cure silicone used as a bond breaker. 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. Compatible with Davco K10 Plus, Davco K10 Rapid and Davco Dampfast. Bond breakers can be a silicone or polyurethane sealant, or preformed bond breaking corners and tapes. Bond breaker tape prevents adhesion to the back of shallow three-sided joints, which can cause splitting failure in the sealant. The maximum depth is ½” (13 mm) and the minimum is ¼ inch (6mm). joint sealant to the recommended thickness. Backer rod Sealant. If joint depth does not allow for backer rod installation, use polyethylene bond breaker tape. 800. Bond Breaker Strips. For sealing shallow joints Bond Breaker Tape is applied to the bottom of the joint so the sealant will bond only to the walls. Silicone WP Plus • Neutral cure, anti-fungal formulation. This is when the sealant is adhered to the bottom and both sides of the joint. Publications listed below form a part of this specification to extent referenced. Gripset BRW Fillet: A preformed butyl rubber profile designed for use at wall/floor junctions as an integral part of the Gripset BRW Sheet waterproofing system. 2. in optimal conditions, the depth of the sealant should be ½ the width of the joint. The depth of the sealant should be 1/2 the width of the joint. bond breaker to prevent 3-sided adhesion. The use of a bond breaker prevents undesirable three-sided adhesion. • Sanitary grade for interior and exterior use. The sealant joint shall fully embed the bond breaker tape, extending 1/4” (6 mm) to 3/8” (10 mm) beyond the end Hardie™ Joint Sealant 300ml Cartridge. StorageWith a given sealant and given conditions, the shape factor of the joint will determine its performance. enhance bond. . Rod Closed Cell provides bond breaking, assists in the control of joint depths for correct joint design and re-ducing sealant consumption. The sealant does not adhere to it, and no separate bond breaker is required. Click & Collect your purchase in-store or we'll deliver it to you. (See Figure 1, page 27. 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 ,. Typically there are three components to the Bond Breaker System; a Fillet; bond-breaker tape and a waterproofing membrane. A backing material shall be placed as shown on the plans and shall be nonadhesive to the concrete or the sealant material. Proper design is 2:1 width to depth ratio. In joints up to 0. Note: Not recommended for fire applications. Contact CRL Customer Service. Types of bond breakers. BUTT JOINTS: if you would like to install a butt joint, due to its high risk of movement joint failure. 5m / 3. 2 Joint slot surface preparation 5. 2. The round profile assists in providing the correct joint sealant profile allowing optimum movement. Thick. 2. Closed cell backer rod should be 25 % larger than joint width; do not compress more than 40%. 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. 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’*. Bond Breaker Tape: Polymer tape compatible with joint sealant materials and recommended by sealant manufacturer. CHARACTERISTICS / ADVANTAGES Easy application by brush or sprayer Non -. This clear, tough plastic tape with a clear polyethylene adhesive backing is eight mils (. , measured at the center point of the joint width. 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. Features. • Mould and mildew resistant. Available in a 300ml cartridge and as a 600ml sausage. Remove all dirt, laitance, loose material, mould release and curing agents, and foreign matter. Click here to access Bastion 600mL Bond Breaker and MS Joint Sealant – User Guide. to EN 13108-1 and mastic asphalt acc. Pour sealant into joint slot in one direction and allow sealant to flow and level out as necessary. In joints where polystyrene or bitumen impregnated fillers have been used, Abelflex is ideal as a bond-breaker. Weep holes or open head joints should be located a maximum of 32 in. Bond Breakers: A type of sealant backing. $9 . MasterSeal NP 2 sealant. 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. The joint slot width when 4. Bond breaker. 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. 2 PVC 2. For construction or contraction joints a bond breaker tape or back-up strip should be used. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease and any other contaminants. contraction to maximize accommodation of movement. For construction or contraction joints a bond breaker tape or back-up strip should be used. - An extra 900-micron (0. Bolt down the collar to the drain flange. JOINT DIMENSIONS Joint size should not exceed 1/2" wide x 1/2" deep. Approval of the backer rod or bond breaker tape shall be made by the Engineer. Bond height. 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. SAW-CUT CONTROL JOINT SEALANT AND BACK-UP BOND COAT CONCRETE OR MASONRY BACK-UP STRUCTURAL JOINT FLEXIBLE SEALANT BOND BREAKER TAPE CERAMIC TILE Expansion Joint – CEJ171 Construction Joint – CEJ171a Isolation/Expansion Joint – CEJ171d Technical Services 800-282-8786. Available in a 300ml cartridge and as a 600ml sausage. 3. Easy and time saving installation. Elastomeric sealants should not adhere to the base of a joint. Sikasil®-728 SL can be used on. As the sealant joint width becomes larger than 1", the depth should be held to approximately 3/8". Uses: BestBond Joint Sealant permanently fills and seals cracks in concrete, stone, masonry, and most rigid surfaces. Place bond breaker tape in the bottom of the saw cut joint after it is cleaned and dried. 3 Primer Application 8 4. Dimension A or B less than 6 mm (1/4”). D. WPA MS is a single component, moisture cured silane modified hybrid sealant free of solvents and isocyanates, with a very low VOC content. Silicone sealants are used to seal joints in a wide variety of construction applications. 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. Plus, it will retain its original diameter and is non-gassing when exposed to high sealant temperatures. PART 3 - EXECUTION 3. Jakarta Barat Karya inti jaya. Backer Rod is an i ntegr al component of sealant joints, it provides three main functions that allow the sealant joint to perform. A bond breaker is therefore employed to minimise the stresses by providing bond relief and ensuring proper functionality of the membrane. Install bond breaker tape over substrates when sealant backings are not used. Clean all surfaces. Joints with Bond Breaker. 5” use a 2:1 width to depth ratio to accommodate movement. Product code: 305534. For most effective results, dura. Waterproof – Nomaflex will not absorb water and will remain in place for years. Increasing the width (W) of the joint and decreasing the depth (D) generally reduces. 5 m ~ 4. to prevent joint depths from exceeding ½ in (13 mm). Always use bond breaker tape or closed cell backer rod for support on horizontal joints. Tool as required, although minimum tooling is necessary. Natural bond breaker; Bitumen-free and rot-proof; POLYBOARD. 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. PTFE joint Sealant 4mm x 12mm / Expanded super seal with Glue. 01 SECTION INCLUDES. HBR acts as a bond breaker to allow joint movement without undue stress to the sealant. " The sealant should bond only to the substrates that will be moving. 000. This article discusses the features of mastic sealants in the construction industry. In a properly designed structurally glazed joint, the sealant is strong enough to support glass and other panel materials under high wind load. Although not shown, vents can be installed in the vertical head joints at the top of masonry walls to provide natural convective air flow within the cavity to facilitate. Figure 4 shows a section of sealant removed from a failed joint. 1. Install bond breaker tape where required by manufacturer's recommendations to ensure that sealants will perform as intended. It incorporates a self-adhesive portion (central 1/3 of tape) that acts as a bondbreaker - over joints, cracks or other. Compressible Joint Sealant : Install compressible sealant in joint to depth recommended by manufacturer. 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. 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. Use a sealant backing or. PRIMING3. - Will not discolor sealants or substrates. This ensures the correct and uniform sealant depth along the whole length of the joint. 7. - All bond breaker joint sealant profiles must be a minimum 6mm in depth at the mid-point of the joint. Most substrates only require priming if sealant will be subjected to water immersion after cure. 2:1 width to. 0m / 5. 7 We r eh NA 1740 ends on any penetration, apply a bead of silicone or urethane sealant. Bastion 4L Exterior. Priming is not usually necessary. The bond breaker allows for 2-sided rather than 3-sided adhesion, which permits much greater elasticity of the sealant. For construction or contraction joints a bond breaker tape or back-up strip should be used. Bond Breakers: A type of sealant backing. Backer rod Sealant. 02 SEALANT AND CAULKING MATERIALSFind Bastion 300ml Bond Breaker Joint Sealant at Bunnings. Bostik’s recommended sealants • Bond breaker is to be installed over the coat where a bond breaker joint is required, e. Sealant B. )it into the joint channel without stretching it lengthwise. 5 mil Low-Density Polyethylene Film Tape is frequently used after installing anchor rods in concrete to prevent cracks in the concrete surface. For construction or contraction joints, use a bond breaker tape or back-up strip. Tool as required to properly fill joints and force sealant against joint interfaces, maximizing bond. narrow joints. It is important for the sealant to bond to joints in. And fourth, it simplifies tooling. A bond breaker tape or backer rod must be present if joint movement is anticipated. Packaging: Grey 600ml. Jakarta Barat Mulia Jaya Packing. Sika® Duoflex NS is a two component, non-sag, premium quality polysulfide sealant, specifically designed for vertical and overhead surfaces. 3 Low Modulus Silicone Sealant: 932. 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. Apply continuous bead of USG Sheetrock® Brand Acoustical Sealant around all openingsD. Correct joint depth can be established by inserting closed cell polyethylene backing rod tightly into the joint. It is important for the sealant to bond to joints in two places so it can expand properly. $9. $9. Bond breakers prevent three-sided adhesion of the sealant (i. With a bond breaker tape in between the joint sealant and joint filler, free movement can be achieved. 3 BOND BREAKERS 2. 932-1. Working joint depths should never exceed 1/2" (12 mm) or be thinner than 1/8" (3 mm). • Suitable for use as a waterproofing membrane bond breaker or as a highly durable finishing sealant. When used as a "backing" in expansion joints or cracks to help control the amount of sealant used or the depth of the sealant in the gap, the backer rod serves two primary functions. 68 (150) Surface and ambient temperature minimum 40-100 maximum 14 days ChemMasters Aquanil Plus 100 (P)(1) Clean, free from dirt, dust, laitance, oil, grease, paints, curing or sealing compounds, tilt up bond breakers or other contaminants 1 Application: 9. Uncured material can. Bastion 15kg Under Tile. Protect surfaces with masking tape. Install bond breaker tape or backer rod to prevent bond at base of joint. ® cord must be inserted into the joint to a depth that will accommodate the depth of sealant specified. A high-performance Bond Breaker Joint Sealant to. therefore, sealant wastage is reduced. 2:1 width to. Polyethylene tape is the most. provides a non-stick surface to prevent sealant 3-sided adhesion. Compare. 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. substrate. PU sealants are mistakenly used as a bond breaker, where a neutral cure silicone should be installed. For use in hori-zontal joints in traffic areas, the absolute minimum depth of the sealant is 1/2” and closed cell backer rod is recommended. 3. For construction or contraction joints, use a bond breaker tape or back-up strip. 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. the sealant joint depth (measured at the center) should always fall between the maximum depth of ½" and the minimum depth of ¼". - Substrate gaps at drainage outlets, flashings,. Suitable Surfaces & Substrates. Let us know what you think! If you. Bastion Bond Breaker to be used as a flexible bond. Acceptable types of bond breakers shall. Clean and dry the joint or crack and install a new bond breaker before placing the sealant. 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. Follow these guidelines when placing the sealant: a. 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.