This 3.5 gal Primer Underlayment is a ready-to-use elastomeric waterproofing membrane suitable for both commercial and residential applications. It creates a continuous waterproof barrier with outstanding adhesion, effectively reducing crack transmission in tile and stone floors. It isolates cracks up to 1/8 in. and meets uniform plumbing code specifications for use as a shower pan liner.

• Ready-to-use roll it on
• Quick dry formula reduces curing time
• Listed with IAPMO for use as a shower pan liner
• Easy to use and can be applied by roller, trowel, or airless sprayer
• Rated for extra heavy duty service
• 3.5-gallon container for large coverage areas
• Enhances adhesion and durability of topcoat finishes
• Quick drying time for efficient project completion