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ARDEX S 1-K™ One-Component Waterproofing and Crack Isolation Membrane - TileTools

ARDEX S 1-K™ One-Component Waterproofing and Crack Isolation Membrane

SKU 37317
by Ardex
$49.72 - $49.72
$49.72
$49.72 - $49.72
$49.72

ARDEX S 1-K Waterproofing & Crack Isolation Membrane – 1 Gallon


The ARDEX S 1-K Waterproofing and Crack Isolation Membrane – 1 Gallon delivers high-performance protection against moisture and substrate movement in interior wet areas. Ideal for tile professionals, it simplifies waterproofing for showers, bathrooms, and other demanding applications.

Features

  • One-Gallon Convenience: Covers up to 100 sq. ft. per coat, perfect for mid-sized jobs without the waste of larger containers.

  • Single-Component Application: No mixing required—ready to use right from the bucket, saving time and labor.

  • Effective Waterproofing Barrier: Meets ANSI A118.10 for water exposure in showers, tub surrounds, and other wet zones.

  • Crack Isolation Protection: Handles in-plane cracks up to 1/8" (3 mm), maintaining a strong bond under stress.

  • Easy Application: Apply with a brush or roller for even, consistent coverage on vertical or horizontal surfaces.

  • Flexible & Durable Finish: Creates a tough yet elastic membrane that resists peeling, blistering, and degradation.

  • Broad Substrate Compatibility: Bonds to concrete, cement backer board, masonry, and more.

  • Low VOC & Indoor Safe: Safe for enclosed environments and compliant with green building standards.

  • Quick Drying Time: Allows for tiling in as little as 1–2 hours after application depending on conditions.

  • Trusted Standards: Complies with SystemOne™, ANSI A118.10, ANSI A118.12, and IAPMO listed.

Standards

  • SystemOne™
  • Meets or exceeds ANSI A118.10
  • Meets or exceeds ANSI A118.12
  • IAPMO

Installation

Mixing Ratio: Single-component mix. Do not dilute or mix with additives.

Approx. Coverage:
56.75 sq. ft. (5.27 sq. m) per 1 gal. (3.78 L) unit, 2 coats over drywall *
Coverage will vary with substrate surface profile, porosity and texture.

Performance

Working Time: Unlimited. Seal unused portion to prevent product from drying out.
Drying Time: First coat: 1 – 2 hours Second coat: 12 – 16 hours

Flood Test: The final coat must be fully cured (approximately 12 – 24 hours, depending on site conditions).
VOC: < 1 g/L, calculated SCAQMD Methods
Packaging: 3.5 gal. (13 L) pail; 1 gal. (3.78 L) pail, 1 gal. units sold in cartons of four (4).
Storage: Store in a cool, dry area. Do not expose container to sun. Keep from freezing.
Shelf Life: 12 months
Warranty: ARDEX L.P. Standard Limited Warranty applies.

More Details

ARDEX S 1-K One-Gallon Waterproofing and Crack Isolation Membrane presents a revolutionary solution for ensuring the longevity and integrity of interior tiling projects. This innovative, single-component formula is designed to create a robust, flexible waterproof coating, making it an essential component for any project in moisture-prone areas like bathrooms and showers. Not only does it provide superior waterproofing capabilities, but it also excels in crack isolation, effectively managing up to 1/8 inch (3 mm) cracks. This feature is particularly important in safeguarding the structural integrity of your tile installations against potential damage. The convenience of its one-gallon size and the ease of application, whether using a paint roller or brush, makes ARDEX S 1-K a preferred choice among professionals. Its ability to bond with a broad range of substrates adds to its versatility, while the flexibility and durability of the coating ensure that your tile installations remain protected and visually appealing for years to come.

What's Included
Manufacturer

ARDEX Americas is a leading provider of innovative building systems. We develop, manufacture, and distribute high-performance specialty building products, including flooring solutions, concrete repair, self-leveling underlayment, moisture control systems, tile adhesives, grouting systems, screeds, surface preparation, waterproofing solutions, and decorative concrete. As a family-owned company, ARDEX prioritizes local customer interaction, ensuring jobs are done right the first time to specification and on schedule while minimizing risk and costly callbacks. Our commitment to excellence is backed by industry-unique warranty systems covering products and labor costs.

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