About Rubberseal

Pro-grade waterproofing, now for everyone.

Rubberseal didn’t start in a hardware aisle — it started on commercial job sites. For over 20 years we’ve manufactured professional liquid-rubber waterproofing for foundations, roofs, water-treatment and industrial structures, where failure isn’t an option.

That contractor-grade product is now available to everyone. Rubberseal is a water-based, low-VOC, cold-applied liquid rubber that rolls or trowels on and cures into a single seamless, flexible membrane — bridging cracks and sealing out water, air and moisture.

We’re not an as-seen-on-TV brand. We’re the waterproofing the pros reach for, now packaged for the homeowner — available direct, on Amazon, and at The Home Depot.

Black, White & Gray • 1, 2 & 4.5-gallon sizes • backed by real technical data and decades of field use.