10 bestWaterproof Sealerof May 2025
112M consumers helped this year.
1
Liquid Rubber RV Roof Coating - Solar Reflective Sealant, Trailer and Camper Roof Repair, Waterproof, Easy to Apply, Brilliant White,1 Gallon
Liquid Rubber
9.8
2
Gorilla Waterproof Patch & Seal Tape, Works Under Water, Indoor & Outdoor Use, Permanent Bond, Instantly Seals, Flexible, 4 in x 10 ft, Black, (Pack of 1) 4670002
Gorilla
9.6
3
Gorilla 100% Silicone Sealant Caulk, All Purpose, Waterproof, 2.8oz/82ml Squeeze Tube, Clear Transparent, (Pack of 1), 8190001
Gorilla
9.4
4
Permatex 59203 Black RTV Silicone Adhesive Sealant 16BR, 80ml
Permatex
9.1
14% off
5
GE Advanced Silicone Caulk for Kitchen & Bathroom - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Shrink & Crack Proof - 2.8 fl oz Tube, White, 1 Pack
GE
8.8
OtherUp to 20% off
Concrete Sealer Clear Penetrating Waterproofing Spray, The Best Sealant to Seal Your Driveway, Cement Patio Pavers, Brick, Stone Or Any Outdoor Hard Surface.
Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Quart
Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 1 Gallon
Rust-Oleum LEAKSEAL Flexible Rubber Sealant in White, 405g
6
Liquid Rubber Color Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Medium Gray, 1 Gallon
Liquid Rubber
8.5
7
Liquid Rubber Smooth Polyurethane Deck Coating - Solar Protection Deck Sealant, Non-Toxic Multi-Surface Waterproofing Membrane, Easy to Apply, Saddle Brown, 1 Gallon
Liquid Rubber
8.2
8
Flex Seal – Stop Leaks Fast! Rubberized Waterproof Coating Spray, Ideal for Roofs, Holes, Cracks, DIY Projects, Automotive Fixes, Indoor & Outdoor Repairs, and More – Clear, 14 oz. (397 g) – 2 Pack
Flex Seal
8.0
9
Gorilla Waterproof Patch & Seal Spray, Flexible Rubberized Coating, Seals Out Water Air & Moisture, Stops & Prevents Leaks, Black, 16oz/453g, (Pack of 1), 104058
Gorilla
7.7
10
Gorilla Clear 100 Percent Silicone Sealant Caulk, All Purpose, Waterproof, 10oz/295ml Cartridge, Clear, (Pack of 1), 8150002
Gorilla
7.4
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