WaterArmor® Liquid Waterproofing & Crack Isolation Membrane, Formerly SealGuard

WaterArmor® Liquid Waterproofing & Crack Isolation Membrane, Formerly SealGuard

WaterArmor® is a ready-to-use 100% acrylic liquid waterproofing and crack isolation membrane, formerly known as SealGuard. Designed for use beneath thin-set tile and stone, WaterArmor provides a continuous waterproof layer for approved horizontal and vertical surfaces in residential and commercial applications.

WaterArmor meets the requirements of ANSI A118.10 and can be applied by brush, roller or trowel. When properly reinforced with fiberglass mesh tape, it can help isolate cracks and substrate changes up to 1/8 inch. The membrane bonds directly to clean metal, PVC and ABS drain assemblies.

Ideal for:

• Shower walls and bathroom waterproofing
• Bathroom floors and walls
• Residential and commercial tile installations
• Kitchen and other wet-area tile applications
• Concrete and cement backerboard
• Brick, masonry and mortar beds
• Approved interior and exterior applications

Key Features

• Ready-to-use 100% acrylic formulation
• Formerly known as SealGuard
• Meets ANSI A118.10
• Waterproofing and crack isolation membrane
• Crack isolation up to 1/8 inch with fiberglass mesh reinforcement
• Brush, roller or trowel applied
• Low VOC, less than 50 g/L
• Antimicrobial protection on the dried membrane
• Flood test as soon as 24 hours when properly cured
• Available in 1 quart, 1 gallon and 5 gallon containers

Coverage and Application

WaterArmor provides approximately 45 square feet per gallon, or approximately 225 square feet per 5-gallon pail, when applied at the specified 25 mil wet and 20 mil dry film thickness. Actual coverage varies depending on substrate roughness and porosity.

Apply WaterArmor to a clean, dry and properly prepared approved substrate using a brush, roller or trowel. Pre-treat corners, coves, edges, floor-to-wall transitions and cracks with WaterArmor and fiberglass mesh reinforcement where required by the manufacturer.

Drying Time

WaterArmor is dry to the touch in approximately 1 hour under standard conditions. Allow approximately 2 hours at 70°F and 50% relative humidity before applying a second coat or installing tile. Higher humidity and cooler conditions may extend drying time.

Product Specifications

• Product type: Liquid waterproofing and crack isolation membrane
• Material: 100% acrylic
• Color: Gray
• Application: Brush, roller or trowel
• VOC: Less than 50 g/L
• Coverage: Approximately 45 sq. ft. per gallon
• 5-gallon coverage: Approximately 225 sq. ft.
• Wet film thickness: 25 mils
• Minimum dry film thickness: 20 mils
• Recoat/tile installation time: Approximately 2 hours under standard conditions
• Flood testing: As soon as 24 hours when required cure conditions are met
• Application temperature range: 40°F to 110°F
• Shelf life: 2 years in unopened original packaging when properly stored

Approved Substrates

WaterArmor can be applied over approved concrete, cement backerboard, brick, masonry and mortar beds. It may also be used over exterior-grade plywood for interior dry installations where permitted by the manufacturer. Other substrates require written manufacturer approval.

Important: WaterArmor is not intended for use as an adhesive, wearing surface, primary roofing membrane or vapor barrier to eliminate subfloor moisture. It should not be used to bridge dynamic joints or cracks larger than 1/8 inch. Wet areas must be properly sloped to the drain.

Helpful Resources

• WaterArmor Waterproofing MSDS
• Preformed Shower Pan MSDS Safety Sheet
• Preformed Ready-to-Tile Shower Pan Guide

Shop Related Products

• Ready-to-Tile Shower Pan Systems
• Waterproofing Membranes

Always read the current manufacturer product data sheet and safety data sheet before installation. Follow applicable ANSI, TCNA and NTCA requirements, local building codes and manufacturer installation instructions.