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Westcoat WP-90 Waterproofing Resin | 5 Gallons

WP-90 used in Base Coat application 2:52


About

WP-90 is primarily used as an additive in the MACoat™ System, where it provides the waterproofing and bonding performance critical to the system’s success. Beyond MACoat™, WP-90 can be incorporated into other cementitious products to improve flexibility, adhesion, and resistance to water intrusion. It is also commonly used as a laminating resin for fiberlath and fiberglass reinforcement, ensuring strong, durable layers within a waterproofing assembly. Formulated for use on decks, walkways, and balconies, WP-90 delivers dependable protection in areas exposed to weather, foot traffic, and moisture.

Specs

Instructions

Applying Product
Follow MACoat™ System Specification Sheet for complete installation and application instructions. 

Dry Time 
Time will vary depending on use and weather conditions at time of application. Usually 1 to 4 hours at 70°F. Allow 72 hours before heavy objects are placed on the surface. 

Clean Up 
Uncured material should be removed with soap and warm water. Cured material should be removed mechanically or with an environmentally-safe solvent.

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Westcoat WP-90 Waterproofing Resin | 5 Gallons

Quantity must be 1 or more
Regular price
$335.95
Sale price
$335.95

WP-90 Waterproofing Resin is a high-solids acrylic-polymer modifier formulated for waterproofing, flexibility, and adhesion. WP-90 is fast-drying, high-build, and VOC-compliant, making it a durable multipurpose resin for decks, walkways, balconies, and other cementitious applications. It improves water resistance, enhances freeze–thaw performance, and provides long-lasting surface protection.

  • Great working time
  • Allows cement products to be feathered
  • Excellent adhesion
  • Waterproofs and Increases water resistance

About

WP-90 is primarily used as an additive in the MACoat™ System, where it provides the waterproofing and bonding performance critical to the system’s success. Beyond MACoat™, WP-90 can be incorporated into other cementitious products to improve flexibility, adhesion, and resistance to water intrusion. It is also commonly used as a laminating resin for fiberlath and fiberglass reinforcement, ensuring strong, durable layers within a waterproofing assembly. Formulated for use on decks, walkways, and balconies, WP-90 delivers dependable protection in areas exposed to weather, foot traffic, and moisture.

Specs

Instructions

Applying Product
Follow MACoat™ System Specification Sheet for complete installation and application instructions. 

Dry Time 
Time will vary depending on use and weather conditions at time of application. Usually 1 to 4 hours at 70°F. Allow 72 hours before heavy objects are placed on the surface. 

Clean Up 
Uncured material should be removed with soap and warm water. Cured material should be removed mechanically or with an environmentally-safe solvent.