Quality begins from the ground up.
Preparing your surface is the most critical task of any tile or stone installation. Custom Building Products offers you one source for the needs of virtually any job.
The foundation of precise tile and stone setting.
Whatever the application, CUSTOM® offers the broadest line of tile and stone setting materials in the industry to give the exact performance your job demands.
Tile grout with dependable performance and color.
Look for tile grout with rock-solid durability, consistency and the largest color palette with Custom. Our grouts are easy to work with yet deliver hard, dense joints.
Care & Maintenance
Stains can RUIN Stone & Tile.Protect Yours Now!
Stains on stone, tile or grout happen easily - and can leave permanent stains. Protect your surface against both oil-based and water-based stains with the right sealer.
Professional Solutions for Professional Results
Offering the largest selection of Sealers, Cleaners, Problem Solvers, Grout Colorant and Stone Restoration products, we provide professionals with the tools and solutions needed to stake their reputations on; making us the #1 Contractor Preferred Manufacturer of Sealers and Cleaners.
Flooring Installation Systems
Start with a strong foundation.
Increase the durability of your floor covering installation by ensuring that your subfloor is properly prepared. CUSTOM® Flooring Installation Systems provide a strong foundation for virtually any project, and deliver optimum performance when used under all types of floor coverings: carpet, wood, vinyl and more.
Shower Installation Systems
Hard core performance.Fast, easy installation.
Custom’s industry-leading variety of waterproof shower slopes and accessories, exclusively manufactured by KBRS. They’re not only twice as strong as any other pre-fabricated shower substrate, but also the fastest and easiest to install.
Profiles & Transitions
Discover a new choice in high-quality profiles and transitions. Create stunning designs in tile and stone without unsightly edges.
A complete line of high performing, aesthetically pleasing edge-protection profiles. Available in the most popular designs and styles, they integrate with most field tile to increase design flexibility and minimize safety risks.
Tools & Accessories
Precision demands the best.
SuperiorBilt® Tools are professionally preferred for tile, stone and floor covering installations.
Thin Veneer Installation Systems
A single source with dedicated service and support.
Custom’s comprehensive TVIS line is engineered as a complete system, giving architects an advanced, premium masonry installation solution for manufactured stone thin veneers.
Products : Surface Prep : Waterproofing Membranes & Underlayments : Crack Buster® Pro Crack Prevention Mat Underlayment
A self-bonding, fabric-reinforced asphaltic mat that reduces crack transmission in tile and stone floors. For both full and partial floor applications, Crack Buster® Pro is an anti-fracture membrane for horizontal cracks up to 3/8" (9.5 mm). Its strong self-adhesive backing and uniquely designed surface provide secure bonding for all types of ceramic tile, natural stone and terrazzo.
American National Standards Institute (ANSI) ANSI A108.01, A108.17 and A118.12 American National Standards for the Installation of Ceramic Tile ASTM International (ASTM)
Tile Council of North America (TCNA) TCNA Handbook for Ceramic Tile Installation, TCNA Method EJ171, F125 & F125A
Installation must comply with the requirements of all applicable local, state and federal code jurisdictions.
Crack Buster® Pro is an elastomeric, fabric-reinforced mat underlayment, with modified asphalt and a polyurethane adhesive.
Custom® Building Products is committed to environmental responsibility in both products produced and in manufacturing practices. Use of this product may contribute to LEED® certification.
Exterior and wet areas must have proper sloping to drains. All surfaces must be structurally sound, clean, dry and free from contaminants that would prevent a good bond. Newly prepared concrete must be troweled smooth and textured to a fine broom finish and cured for 28 days. Existing surfaces must be scarified and leveled, and all defects must be repaired. Cracks exceeding 1/8" (3 mm) should be treated in accordance with TCNA F125 or TCNA F125A.
Expansion joints and cold joints, as described in ANSI A108.01, should never be bridged with setting material. They must be brought through the tile work and filled with an appropriate elastomeric sealant, such as Custom's 100% Silicone. Contact Custom's Technical Services for the proper treatment of control or saw cut joints. Refer to TCNA EJ171, F125 & F125A.
Wear rubber gloves and eye protection while using this product. Avoid eye contact or prolonged contact with skin and wash thoroughly after handling. If eye contact occurs, flush with water for 15 minutes and consult a physician. Wash thoroughly after handling. Do not take internally. Keep out of the reach of children.
Gypsum substrates must exceed 2000 psi (13.8 MPa) and must be fully sealed using Peel & Stick Primer.
Plywood floors, including those under resilient flooring, must be structurally sound and must meet all ANSI and deflection requirements. For questions about proper subfloor installation, call Custom® Building Products.
Resilient flooring or plastic laminates must be well-bonded, as well as clean and free of all contaminates. Roughen the surface by sanding or scarifying; rinse and allow to dry. Do not sand flooring that contains asbestos. For existing well-bonded ceramic tile, mechanically abrade the surface. Rinse and allow to dry. An approved respirator should be used when sanding.
Thick accumulations and powdery, brittle or weak cut back adhesive layers must be removed. Use extreme caution, as adhesives may contain asbestos fibers. Do not sand or grind the adhesive residue, as harmful dust may result. Never use adhesive removers or solvents, as they weaken or soften the adhesive and may cause it to penetrate into the concrete. The remaining residue should be no thicker than a coat of paint and should be almost transparent. Always install an adequate number of properly located test areas.
Application of Primer
For proper adhesion and optimal bond, prime the substrate with Peel & Stick Primer. Using a paint brush, short-nap roller or soft-push broom, apply an even coat and allow it to dry until tacky to the touch, about 30-40 minutes. When the primer does not transfer to your finger, the surface is ready for application of CrackBuster® Pro.
Full Floor Application
With the release sheet still attached, unroll and position the membrane over the area to be treated and cut the membrane to the appropriate length. Roll up half of the cut membrane, leaving the other half in position. Cut the release sheet from the rolled-up portion of the membrane and pull the membrane into position, exposing and unrolling the self-stick portion. Return to the unrolled portion of the membrane and follow the same procedure. Check the positioning; smooth wrinkles and bubbles with a flat trowel and roll with a 50 lb (23 kg) roller or apply 50 lb (23 kg) of pressure with a hand roller to ensure complete contact with the substrate. Air pockets and wrinkles should be slit then smoothed with a roller or the flat side of a trowel. Align subsequent sheets and butt-join the seams tightly but do not overlap them. Clean tools with soap and warm water.
Crack Isolation Application
With the release sheet still attached, premeasure and cut the membrane to the desired length. The membrane should extend 6"-8" (15-20 cm) beyond the length of the crack in both directions and should extend beyond both sides of the crack and at least 3 times the dimension of the tile used. Reroll the membrane and center it over the crack. Remove about 2" (5 cm) of release paper and apply it firmly to the substrate. Remove the rest of the release paper, exposing and unrolling the self-stick portion of the membrane. Secure the membrane to the substrate with a 50 lb (23 kg) roller or equivalent heavy pressure from a hand roller or flat trowel. Remove fresh adhesive from tile surfaces with a damp cloth. Clean tools in warm soapy water.
Install tile or stone with a Custom® Building Products polymer-modified mortar that meets ANSI A118.4, A118.15 or A118.11 standards.
Clean tools and hands with water before the material dries. Clean all spray equipment immediately after use.
Properly installed product requires no special maintenance. Do not use as a wear surface.
36" x 75' (.91 x 23 M) Rolls
Custom® Building Products warrants to the original consumer purchaser that its product shall be free from defects in material and workmanship under normal and proper usage for a period of one year following the date of original purchase. CUSTOM's sole liability under this warranty shall be limited to the replacement of the product. Some states, countries or territories do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty will not extend to any product which has been modified in any way or which has not been used in accordance with CUSTOM's printed instructions. CUSTOM makes no other warranties either expressed or implied. This warranty gives you specific legal rights, and you may have other rights that vary from state to state or from one country/territory to another. This warranty is not transferrable.
When Crack Buster® Pro Crack Prevention Mat Underlayment is used as a part of a qualifying full installation system of CUSTOM products, the installation can qualify for up to a lifetime system warranty. CUSTOM will repair and/or replace, at its discretion, the affected area of the system. For more information, find details and limitations to this warranty at custombuildingproducts.com.
Customer Support 800-272-8786
Technical Services 800-282-8786
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