10 bestWaterproof Sealerof February 2026
112M consumers helped this year.
1
Liquid Rubber RV Roof Sealant- Professional-Grade Solar Reflective Flexible Waterproof Membrane Coating for EPDM, TPO, Fiberglass & Aluminum Camper & Travel Trailers- 1 Gallon
Liquid Rubber
9.9
2
Gorilla Clear 100 Percent Silicone Sealant Caulk, All Purpose, Waterproof, 10oz/295ml Cartridge, Clear, (Pack of 1), 8150002
Gorilla
9.8
3
Gorilla White 100 Percent Silicone Sealant Caulk, All Purpose, Waterproof, 10oz/295ml Cartridge, White, (Pack of 1), 8160002
Gorilla
9.7
4
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
9.5
5
Gorilla 100% Silicone Sealant Caulk, All Purpose, Waterproof, 2.8oz/82ml Squeeze Tube, Clear Transparent, (Pack of 1), 8190001
Gorilla
9.3
OtherUp to 5% off
CLARK'S Soapstone and Concrete Sealer - Natural Beeswax and Carnauba Wax Blend - Ideal for Countertops and Slate Surfaces - Concrete Countertop Wax - Carnauba Wax Food Grade - Large - 32 oz
Liquid Rubber Smooth Polyurethane Deck Coating - Solar Protection Deck Sealant, Non-Toxic Multi-Surface Waterproofing Membrane, Easy to Apply, Saddle Brown, 1 Gallon
Gorilla Waterproof Patch & Seal Spray, Flexible Rubberized Coating, Seals Out Water Air & Moisture, Stops & Prevents Leaks, Black, 16oz/453g, (Pack of 1), 104058
Lepage 2in1 Seal & Bond Sealant - Indoor Caulking for Kitchen, Bathroom Sink & Shower, Flexible & Water Resistant - 295 ml Cartridge, Clear, 1 Pack
18% off
6
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
9.1
7
Liquid Rubber Color Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Medium Gray, 1 Gallon
Liquid Rubber
8.9
8
Flex Seal Liquid - Waterproof Rubber Seal, Patch Leaks, Repair Multi-Surface Indoor & Outdoor; Thick Coating Great for Roofs, Cracks, Gutters, Concrete, Basements, Foundations, White, 32 oz (945 mL)
Flex Seal Liquid
8.6
5% off
9
Permatex 59203 Black RTV Silicone Adhesive Sealant 16BR, 80ml
Permatex
8.4
10
Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 1 Gallon
Liquid Rubber
8.1
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