Why Rubberseal: contractor-tested, no gimmicks
Pro-grade waterproofing, now made simple for everyone.
Rubberseal didn’t start in a hardware aisle — it started on commercial job sites. For years we manufactured professional liquid-rubber waterproofing for foundations, roofs, water treatment and industrial structures, where failure isn’t an option. That same contractor-grade product is now available to homeowners and DIYers.
✓ Contractor-tested, not gimmick-driven
Rubberseal is a real waterproofing system that pros actually specify — not a novelty product. It rolls, brushes or trowels on to form one seamless, flexible membrane that bridges cracks and seals out water, air and moisture.
✓ Safe and low-VOC
Water-based, low-VOC, non-toxic and odorless — safe to use around ponds, planters and indoors, with easy soap-and-water cleanup.
✓ One seamless, flexible membrane
No torches, no seams, no fumes. Rubberseal cures into a single crack-bridging rubber membrane that’s UV- and chemical-resistant and built to flex with your structure.
✓ Strong value across every color and size
Rubberseal comes in Black, White and Gray, in 1, 2 and 4.5-gallon sizes — competitively priced contractor-grade waterproofing. Black is our toughest, true-waterproof formula (and proudly made in the USA); White and Gray are our most popular everyday choices.
Where to Buy Rubberseal
Buy Rubberseal direct from this site, or find it at The Home Depot and on Amazon — the same contractor-grade liquid rubber, wherever you prefer to shop.