WaterBlock Ultra is the ultimate waterproofing solution for masonry chimneys, designed to extend the life of your chimney with minimal effort. This premium, water-based product creates a breathable, long-lasting barrier that protects against water penetration while allowing trapped moisture to escape. By preventing costly issues like cracking, staining, efflorescence, and freeze-thaw damage, WaterBlock Ultra helps maintain both the performance and appearance of masonry chimney structures year round.
Reliable Everyday Protection for Masonry Chimneys
WaterBlock Ultra is specially formulated to provide durable, cost-effective protection for chimneys exposed to low or moderate weather conditions. It forms a dependable moisture-resistant shield that reduces the risk of minor surface deterioration while preserving the integrity and aesthetics of your chimney. Trusted by homeowners and professionals alike, WaterBlock Ultra keeps masonry safe, dry, and strong with unmatched everyday waterproofing protection.
Key Benefits:
- Superior Protection against rain, snow, and ice to help extend chimney life
- Breathable Formula that prevents cracking and spalling by allowing moisture release
- Easy Application with quick-drying performance for minimal downtime
- Durable Reliability that resists wear from harsh outdoor conditions
- Eco-Friendly Composition made with environmentally conscious materials for safe home use
Best For:
Chimneys with low to moderate weather exposure and homeowners seeking budget-friendly, effective waterproofing protection.
Technical Details:
- Type: Silane-Siloxane-based water repellent
- Penetration Depth: Up to 1/4 inch for effective surface protection
- Coverage: 90–150 square feet per gallon depending on porosity
- Application: Brush, roller, or low-pressure sprayer
- Dry Time: Touch dry in 2–4 hours, fully cured in 24–48 hours
- Waterproofing needs to be stored in a temperature controlled environment above freezing.
Application Guidelines (Shake Well Before Using):
- Clean the surface thoroughly to remove dirt, debris, and previous coatings
- Ensure masonry is completely dry before applying
- Apply evenly and allow the product to soak in, avoiding pooling
- Allow adequate drying time before exposure to rain or moisture.
Technical Details:Â
- Type: Silane-Siloxane-based water repellent
- Penetration Depth: Up to 1/4 inch for effective surface protection
- Coverage: 90–150 square feet per gallon depending on porosity
- Application: Brush, roller, or low-pressure sprayer
- Dry Time: Touch dry in 2–4 hours, fully cured in 24–48 hours
- Waterproofing needs to be stored in a temperature controlled environment above freezing.
