KobauFlex KFA Fast Drying Anti-Fracture Waterproofing Crack Isolation Liquid Rubber Membrane Sealant, 1.3 Gallon Pail (5 Kg), Flooring Underlayment for Indoor Use, Blue Colored, Odorless (551050000)

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KobauFlex KFA Fast Drying Anti-Fracture Waterproofing Crack Isolation Liquid Rubber Membrane Sealant, 1.3 Gallon Pail (5 Kg), Flooring Underlayment for Indoor Use, Blue Colored, Odorless (551050000)

Name: KobauFlex KFA Fast Drying Anti-Fracture Waterproofing Crack Isolation Liquid Rubber Membrane Sealant, 1.3 Gallon Pail (5 Kg), Flooring Underlayment for Indoor Use, Blue Colored, Odorless (551050000)
Brand: Kobau
SKU: KOBAU_KFA_SEALANT
Price: 38.62 CAD
Availability: InStock

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KobauFlex KFA Fast Drying Anti-Fracture Waterproofing Crack Isolation Liquid Rubber Membrane is a high-performance, odorless blue sealant designed to protect interior floors and walls from moisture, cracks, and structural movement. Supplied in a 1.3-gallon (5 kg) pail, this premium liquid membrane creates a seamless, flexible waterproof barrier that prevents tile and grout failure, making it ideal for bathrooms, kitchens, laundry rooms, wet areas, and general indoor flooring underlayment.

Price:

$77.90 CAD $38.62 CAD

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29 Jul. Estimated arrival

26 Jul. Order placed

27-28 Jul. Order dispatches

29 Jul. Delivered!

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Product Features:

Quick-Drying Liquid Waterproofing: KobauFlex KFA is a trusted, quick-drying, ready-to-use, and highly reliable liquid rubber waterproofing membrane designed for interior tile, stone, and wet-area applications requiring long-lasting moisture protection.
Seamless Waterproof Membrane Barrier: Creates a seamless and continuous waterproof membrane barrier with outstanding adhesion, preventing water penetration in bathrooms, showers, kitchens, laundry rooms, and other wet zones.
Reinforcing Fabric Not Required: Does not require reinforcing fabric in the field, coves, or corners, simplifying installation and protecting tile assemblies from moisture intrusion.
Waterproofing and Crack-Isolation Membrane: Ideal waterproofing adhesive and crack-isolation membrane for wet areas including showers, steam showers, steam rooms, residential and commercial kitchens, fountains, spas, hot tubs, food-processing areas, and utility rooms.
Versatile Multi-Surface Bonding: KobauFlex KFA membrane bonds directly to PVC, ABS, metal, concrete, masonry, cement plaster, cement mortar, ceramic tile, natural stone, backer board, and other common tile substrates, making it highly versatile.
Durable Mold and Moisture Resistance: Excellent for residential and commercial use, offering strong durability and resistance to mold, humidity, and elevated moisture levels.
Ideal for DIY Renovation Projects: Perfect for home improvement, DIY renovation projects, bathroom remodeling, shower waterproofing, kitchen upgrades, laundry room flooring, and tile installation preparation.
Reliable Tile Crack Isolation: Provides reliable crack-isolation performance for ceramic tile, porcelain tile, granite, marble, mosaic tile, and natural stone installations using thinset mortar.
Fast-Drying, Solvent-Free Formula: Features fast-drying, solvent-free, low-odor, silicon-compatible formulation for a cleaner, safer, and more efficient installation process.
German-Made Performance: Made in Germany with strict quality-control standards, providing professional-grade performance for contractors and homeowners.

Product Description:

KobauFlex KFA Waterproofing Liquid Rubber Membrane is a high-performance, ready-to-use, solvent-free coating designed to deliver exceptional waterproofing, crack isolation, and substrate protection for interior tile and stone installations. Engineered as a rollable and brush-applied sealing compound, this membrane is approved for water exposure classes W0-1 to W2-1 on walls and W0-1 to W1-1 on floors in accordance with DIN 18534, meeting the highest standards for indoor waterproofing reliability. Its advanced formulation is fast-drying, odorless, silicon-compatible, and engineered to bond directly to moisture-sensitive substrates, ensuring long-lasting protection when applied in two required coats.

KobauFlex KFA creates a durable continuous water barrier with excellent adhesion, minimizing curing time and delivering proven performance as a waterproofing and crack-prevention membrane. It can also be used as a vapor barrier on slab-on-grade applications beneath a wide range of floor coverings. This makes the membrane an ideal choice for home improvement, remodeling projects, bathroom decor upgrades, and professional tile installations in both residential and commercial environments.

This membrane acts as a dependable crack-isolation solution, offering superior moisture protection for ceramic tile, porcelain tile, marble, granite, mosaic tile, natural stone, and other tile finishes installed using thinset mortar. The user-friendly application ensures smooth, uniform coverage with precise control, making it suitable for both professional installers and DIY homeowners.

Its versatile adhesion properties allow the membrane to bond directly to substrates such as concrete, masonry, cement board, plaster, PVC, ABS pipes, metal, existing ceramic tile, and primed surfaces. Whether you're waterproofing a shower floor, preparing a kitchen backsplash, protecting a laundry room subfloor, renovating a steam room, or completing a full bathroom remodel, KobauFlex KFA offers the reliable, certified, and long-lasting performance required for demanding wet-area conditions. This premium liquid membrane provides a secure watertight barrier, allowing you to confidently complete tile and home-renovation projects with professional-grade results.

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KobauFlex KFA Fast Drying Anti-Fracture Waterproofing Crack Isolation Liquid Rubber Membrane Sealant, 1.3 Gallon Pail (5 Kg), Flooring Underlayment for Indoor Use, Blue Colored, Odorless (551050000)

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