Rub-R-Patch
Waterproof patch coating pre-treatment that can be applied to small voids and imperfections before liquid waterproofing is applied.
Rub-R-Patch: The Foundation Repair Companion for Seamless Waterproofing
When it comes to foundation waterproofing, details matter. A flawless membrane starts with a flawless surface — and that’s exactly where Rub-R-Patch earns its keep.
Designed to be applied with a simple putty knife, Rub-R-Patch is the pre-treatment step that ensures your spray-applied waterproofing system bonds to a continuous, uniform surface. Fill those tie holes, honeycombs, cracks, and voids before spraying, and you’ve got the peace of mind that comes from knowing your waterproofing membrane won’t just cover — it will seal.
Think of it as the unsung hero of waterproofing: small job, big impact.
Why Rub-R-Patch Matters
Every contractor knows the frustration of discovering:
Honeycombs in poured concrete.
Tie holes left behind by forms.
Small cracks or surface imperfections in masonry.
Skip patching them, and you’re left with weak spots where water can intrude. Use inferior patching compounds, and you risk poor adhesion between the surface and your waterproofing membrane.
Rub-R-Patch is designed specifically for this job. As a single-component, elastomeric polymer compound, it not only fills gaps but also flexes and bonds permanently . The result is a foundation surface that’s smooth, sealed, and ready for waterproofing success.
Key Features of Rub-R-Patch
Easy Application – Apply directly with a putty knife at 30–40 mils thick .
High Elongation (1,300%) – Stretches without cracking, even when the foundation shifts .
Strong Adhesion – Peel adhesion of 28 lbs./inch means it stays put under pressure .
Hydrostatic Resistance – Withstands up to 57 feet of water pressure (ASTM D751) .
Cold-Weather Performance – Passes pliability tests at 25°F (ASTM E1970) .
Durable Formula – With 58% solids content, it’s built for longevity .
This is not caulk. This is a high-performance repair compound engineered to integrate seamlessly into the Rub-R-Wall waterproofing system.
Where Rub-R-Patch Fits In
Rub-R-Patch isn’t meant to replace your spray-applied waterproofing membrane. It’s meant to prepare the foundation for it.
Use Rub-R-Patch on:
Tie Holes: Fill form tie voids in poured concrete.
Honeycombs: Smooth over imperfect pours.
Voids & Cracks: Seal small gaps before membrane application.
Surface Prep: Create a uniform base for Rub-R-Wall (Aqua), Rub-R-Wall CG, or other spray-applied systems.
By handling these small but critical repairs up front, Rub-R-Patch prevents the “weak links” that lead to waterproofing failures down the line.
Rub-R-Patch vs. Generic Patching Compounds
Feature | Rub-R-Patch | Generic Patch |
|---|---|---|
Adhesion | 28 lbs./inch peel adhesion | Varies, often weaker |
Elongation | 1,300% flexibility | Limited, prone to cracking |
Hydrostatic Resistance | Withstands 57 ft. of water | Typically untested |
Integration | Engineered for Rub-R-Wall membranes | May not bond effectively |
Contractors who switch to Rub-R-Patch quickly see fewer call-backs and stronger long-term performance.
The Bottom Line: Small Step, Big Payoff
Waterproofing is only as strong as its weakest point. By filling tie holes, honeycombs, and voids with Rub-R-Patch, you eliminate weak spots before they become leaks.
Easy application with a putty knife.
Superior adhesion and flexibility.
Seamless integration into the Rub-R-Wall system.
Rub-R-Patch is the detail that makes the difference between good waterproofing and great waterproofing.
Don’t Overlook the Details
Contractors who build to last know that every step counts. Make Rub-R-Patch part of your prep work, and give your waterproofing system the smooth, continuous surface it needs to perform for decades.
Frequently Asked Questions
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