

Liquid Rubber Multi-Surface Waterproof Sealant, Black, Indoor & Outdoor, 1 Gallon
Key item features
- Highly Flexible & Durable: Final membrane has over 1000% elongation preventing adhesion failure and is UV stable, stopping sun degradation.
- Environmentally Friendly: Water-based, containing no solvents, VOCs, or harmful odors. Safe for humans and pets, suitable for indoor and outdoor use.
- Coverage Details: Vertical surfaces - 1 gallon covers 30 sq ft with 3-4 heavy coats. Flat/ponding surfaces - 1 gallon covers 15 sq ft with 4-5 heavy coats.
- Versatile Applications: Ideal for flat roofs, metal roofs, sloped roofs, planter boxes, foundations, ponds, sheds, basements, metal, wood, concrete, and more.
- Application Guidelines: Apply when temperature is above 40°F (5°C) to a dry, clean surface. Typically cures within 24-48 hours. Avoid application in wet conditions or if rain is forecasted within 24 hours.
- Easy Clean-Up: Use soap and water or mineral oil to clean skin after application.
Specs
- ColorOriginal Black
- Dry time2 h
- MaterialRubber
- Product net content parent1 Gallon
- Rec locationIndoor and Outdoor
- Recommended surfaceMetal, Concrete
Reviews summary
- : Application is straightforward and smooth.
- : Provides coverage with multiple coats.
- : Used for repairing various curved surfaces.
- : Smoothly glides for easy application.
- : Can be effective, but may not fully seal in all cases.
- Free shipping
Free 30-day returns
How do you want your item?
Similar items you might like
Based on what customers bought
Concrete Sealer, Natural Finish $18.99
5 optionsAvailable in additional 5 optionsSponsored$1899current price $18.99Options from $18.99 – $116.99Concrete Sealer, Natural Finish
334.5 out of 5 Stars. 33 reviewsShipping, arrives in 3+ daysFlex Seal Liquid Rubber Sealant Coating, 32 oz, White $34.87
2 optionsAvailable in additional 2 options$3487current price $34.87Options from $34.87 – $69.74Flex Seal Liquid Rubber Sealant Coating, 32 oz, White
7114.5 out of 5 Stars. 711 reviewsSave withPickup todayDelivery todayShipping, arrives todayGorilla Patch & Seal Liquid Rubber Waterproof Sealant, Crystal Clear, 32 Ounce $32.77 Was $41.84
2 optionsAvailable in additional 2 optionsNow$3277current price Now $32.77, Was $41.84$41.84Options from $32.77 – $62.26Gorilla Patch & Seal Liquid Rubber Waterproof Sealant, Crystal Clear, 32 Ounce
2374.6 out of 5 Stars. 237 reviewsSave withPickup todayDelivery todayShipping, arrives todaySEAL-ONCE Light Brown NANO POLY Premium Wood Sealer, 5 Gallon - Outdoor Use $64.98
13 optionsAvailable in additional 13 optionsSponsored$6498current price $64.98More options from $62.00SEAL-ONCE Light Brown NANO POLY Premium Wood Sealer, 5 Gallon - Outdoor Use
164.6 out of 5 Stars. 16 reviewsShipping, arrives in 3+ daysMiddleby 17130-0006 Silicon Rubber Sealant, 11-Ounce $72.97
$7297current price $72.97Middleby 17130-0006 Silicon Rubber Sealant, 11-Ounce
Shipping, arrives in 3+ daysUSG Liquid Membrane Acrylic, Polymer Industrial Sealant, 12 lbs $56.24
$5624current price $56.24USG Liquid Membrane Acrylic, Polymer Industrial Sealant, 12 lbs
104.8 out of 5 Stars. 10 reviewsShipping, arrives in 3+ daysBest seller GE Advanced Silicone Window & Door Sealant, Pack of 1, White 2.8 fl oz Tube $7.97
$797current price $7.97GE Advanced Silicone Window & Door Sealant, Pack of 1, White 2.8 fl oz Tube
1064.7 out of 5 Stars. 106 reviewsSave withPickup todayDelivery todayShipping, arrives todayBeest Brands RV Roof Sealant, Waterproof Liquid Rubber Roof Coating for RVs and Campers, 1 Gallon, White $68.95 Was $77.95
5 optionsAvailable in additional 5 optionsNow$6895current price Now $68.95, Was $77.95$77.95Beest Brands RV Roof Sealant, Waterproof Liquid Rubber Roof Coating for RVs and Campers, 1 Gallon, White
34.3 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowFlex Seal Liquid Rubber Sealant Coating, 32 oz, Black $34.87
2 optionsAvailable in additional 2 options$3487current price $34.87Options from $34.87 – $139.48Flex Seal Liquid Rubber Sealant Coating, 32 oz, Black
5724.5 out of 5 Stars. 572 reviewsSave withPickup todayDelivery todayShipping, arrives todayBlack Jack Speed-Fill 6438-9-34 Elastic Crack Filler, Liquid, Black, Mild Hydrocarbon, 1 gal Jug $8.98 Was $28.77
5 optionsAvailable in additional 5 optionsNow$898current price Now $8.98, Was $28.77$28.77Options from $8.98 – $121.46Black Jack Speed-Fill 6438-9-34 Elastic Crack Filler, Liquid, Black, Mild Hydrocarbon, 1 gal Jug
234.5 out of 5 Stars. 23 reviewsShipping, arrives in 3+ daysBlack Liquid Rubber Sealant Coating,1 gallon, suitable for roofs, walls, bathrooms, showers, window sills, indoor and outdoor waterproof coatings weighing $54.99
$5499current price $54.99Black Liquid Rubber Sealant Coating,1 gallon, suitable for roofs, walls, bathrooms, showers, window sills, indoor and outdoor waterproof coatings weighing
Shipping, arrives in 3+ daysGorilla Waterproof Patch & Seal Liquid Rubber, Black Sealant, 32 Ounce $27.79 Was $32.77
Now$2779current price Now $27.79, Was $32.77$32.77Gorilla Waterproof Patch & Seal Liquid Rubber, Black Sealant, 32 Ounce
1994.7 out of 5 Stars. 199 reviewsSave withPickup todayDelivery todayShipping, arrives todayBest seller Gorilla Waterproof Patch & Seal Rubberized Sealant Spray, White, 14 Ounce $14.94
Best seller
9 optionsAvailable in additional 9 options$1494current price $14.94Options from $14.94 – $40.34Gorilla Waterproof Patch & Seal Rubberized Sealant Spray, White, 14 Ounce
5254.3 out of 5 Stars. 525 reviewsSave withPickup todayDelivery todayShipping, arrives today1 Gallan Liquid Rubber Waterproof Sealant Black, Roof Sealant Waterproof DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane $49.99
2 optionsAvailable in additional 2 options$4999current price $49.99Options from $49.99 – $55.991 Gallan Liquid Rubber Waterproof Sealant Black, Roof Sealant Waterproof DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane
24.5 out of 5 Stars. 2 reviewsShipping, arrives in 3+ daysBest seller Flex Seal Aerosol Liquid Rubber Sealant Coating, 14 oz, Black $14.87
Best seller
9 optionsAvailable in additional 9 options$1487current price $14.87Options from $14.87 – $44.61Flex Seal Aerosol Liquid Rubber Sealant Coating, 14 oz, Black
31744.4 out of 5 Stars. 3174 reviewsSave withPickup todayDelivery todayShipping, arrives today1.18"x50ft Rubber Concrete Sealant Strip Heat/Cold Resistant for Concrete Seamless Crack Prevention $64.99
$6499current price $64.991.18"x50ft Rubber Concrete Sealant Strip Heat/Cold Resistant for Concrete Seamless Crack Prevention
Shipping, arrives in 3+ daysRaincheck Universal Waterseal (1.3 Gallon) Waterproofing Sealer for Masonry, Wood, Brick and Stone $29.99
$2999current price $29.99Raincheck Universal Waterseal (1.3 Gallon) Waterproofing Sealer for Masonry, Wood, Brick and Stone
104.6 out of 5 Stars. 10 reviewsSave withShipping, arrives tomorrow
About this item
Product details
- HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product
- ENVIRONMENTALLY FRIENDLY - Liquid Rubber Waterproof Sealant/Coating is water based, containing no solvents, VOC's or harmful odors. Safe for humans and pets alike, can be used indoors and outdoors with no special breathing apparatus
- COVERAGE - Vertical Surfaces - 1 gallon/30 sq ft (2.8 sq m). 3-4 heavy coats to achieve a 30 mil (0.76 mm) membrane. Flat/Ponding Surfaces - 1 gallon/15 sq ft (1.4 sq m). 4-5 heavy coats to achieve a 60-80 mil (1.5-2 mm) membrane
- HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product
Specifications
Color
Dry time
Material
Product net content parent
Warranty
Warranty information
More items to consider
Based on what customers bought
Liquid Rubber Geo Textile Fabric, 4-in x 160-ft, Reinforces Roofs, Ponds, Foundations, and Decks $34.95
$3495current price $34.95Liquid Rubber Geo Textile Fabric, 4-in x 160-ft, Reinforces Roofs, Ponds, Foundations, and Decks
1354.8 out of 5 Stars. 135 reviewsShipping, arrives in 3+ daysRollback GE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can $3.97 Was $4.48
Rollback
11 optionsAvailable in additional 11 optionsNow$397current price Now $3.97, Was $4.48$4.48Options from $3.97 – $142.92GE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can
10324.5 out of 5 Stars. 1032 reviewsSave withPickup todayDelivery todayShipping, arrives todayPremier Paint Roller 3-6ft Soft Foam Stainless Steel Extension Pole $14.47
$1447current price $14.47Premier Paint Roller 3-6ft Soft Foam Stainless Steel Extension Pole
854.4 out of 5 Stars. 85 reviewsSave withShipping, arrives todayBest seller DAP Ready-Mixed Concrete Patch 32 oz Gray Cement, Tub $9.12 Was $24.00
Best seller
3 optionsAvailable in additional 3 optionsNow$912current price Now $9.12, Was $24.00$24.00Options from $9.12 – $36.48DAP Ready-Mixed Concrete Patch 32 oz Gray Cement, Tub
6904.4 out of 5 Stars. 690 reviewsSave withPickup todayDelivery todayShipping, arrives todayYeYeBest 48 inches House Paint Roller Extension Pole with3 Pieces Rollers Brush No Drip Grey,Stainless Steel, Mural Brush for Walls and Ceiling $16.99 Was $18.99
2 optionsAvailable in additional 2 optionsNow$1699current price Now $16.99, Was $18.99$18.99Options from $16.99 – $18.99YeYeBest 48 inches House Paint Roller Extension Pole with3 Pieces Rollers Brush No Drip Grey,Stainless Steel, Mural Brush for Walls and Ceiling
494.3 out of 5 Stars. 49 reviewsSave withShipping, arrives tomorrowLiquid Rubber EPDM And TPO Clear Primer, Rubber RV Roofing Coating, 1 Gallon, 250 Sq ft Coverage $79.95
2 optionsAvailable in additional 2 options$7995current price $79.95More options from $34.95Liquid Rubber EPDM And TPO Clear Primer, Rubber RV Roofing Coating, 1 Gallon, 250 Sq ft Coverage
904.6 out of 5 Stars. 90 reviewsShipping, arrives in 3+ daysHenry Matte Asphalt Aluminum Roof Coating 4.75 gal $124.10 Was $161.17
Now$12410current price Now $124.10, Was $161.17$161.17Henry Matte Asphalt Aluminum Roof Coating 4.75 gal
11 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysBest seller Good 10-Piece Knit Polyester Paint Tray Kit $9.97
Best seller
$997current price $9.97Good 10-Piece Knit Polyester Paint Tray Kit
19144.6 out of 5 Stars. 1914 reviewsSave withPickup todayDelivery todayShipping, arrives today
Popular items in this category
Best selling items that customers love
Liquid Rubber Black Foundation and Basement Sealant, Indoor & Outdoor, Waterproof, 1 Gallon $59.95
2 optionsAvailable in additional 2 options$5995current price $59.95Options from $59.95 – $159.95Liquid Rubber Black Foundation and Basement Sealant, Indoor & Outdoor, Waterproof, 1 Gallon
1734.9 out of 5 Stars. 173 reviewsShipping, arrives in 3+ daysAlien Waterproof Sealant Spray Black Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor $14.96
2 optionsAvailable in additional 2 options$1496current price $14.96Options from $14.96 – $29.92Alien Waterproof Sealant Spray Black Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor
574.3 out of 5 Stars. 57 reviewsSave withPickup todayDelivery todayShipping, arrives today(2 pack) Alien Waterproof Sealant Spray Black Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor $29.92
$2992current price $29.92(2 pack) Alien Waterproof Sealant Spray Black Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor
Save withPickup todayDelivery todayShipping, arrives today(3 pack) Alien Waterproof Sealant Spray Clear Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor $44.88
$4488current price $44.88(3 pack) Alien Waterproof Sealant Spray Clear Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor
Save withPickup todayDelivery todayShipping, arrives todayBest seller Alien Waterproof Sealant Spray Clear Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor $14.96
Best seller
2 optionsAvailable in additional 2 options$1496current price $14.96Options from $14.96 – $29.99Alien Waterproof Sealant Spray Clear Caulk 14 oz Liquid Rubber Seal Insulate for Indoor Outdoor
2544.3 out of 5 Stars. 254 reviewsSave withPickup todayDelivery todayShipping, arrives todayFlex Seal Black Aerosol 14 oz & 32 oz Black Liquid Rubber Sealant $49.74
$4974current price $49.74Flex Seal Black Aerosol 14 oz & 32 oz Black Liquid Rubber Sealant
Save withShipping, arrives in 2 daysFlex Seal Automotive Aerosol Liquid Rubber Sealant Coating, 14 oz, Black $14.87
2 optionsAvailable in additional 2 options$1487current price $14.87Flex Seal Automotive Aerosol Liquid Rubber Sealant Coating, 14 oz, Black
8784.5 out of 5 Stars. 878 reviewsSave withPickup todayDelivery todayShipping, arrives today(4 pack) Flex Seal Automotive Aerosol Liquid Rubber Sealant Coating, 14 oz, Black $59.48
$5948current price $59.48More options from $29.74(4 pack) Flex Seal Automotive Aerosol Liquid Rubber Sealant Coating, 14 oz, Black
Save withPickup todayDelivery todayShipping, arrives todayTaTaai 1Pcs Waterproof Sealant Clear, Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Seal Liquid Rubber Sealant for Indoor & Outdoor $9.94
$994current price $9.94+$1.99 shippingMore options from $7.99TaTaai 1Pcs Waterproof Sealant Clear, Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Seal Liquid Rubber Sealant for Indoor & Outdoor
Shipping, arrives in 3+ daysClearance Liquid Waterproof Sealant Clear -Wadities Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Patch & Seal Liquid Rubber Sealant for Indoor and Outdoor $12.55 Was $15.49
Now$1255current price Now $12.55, Was $15.49$15.49+$2.99 shippingOptions from $12.55 – $12.76Liquid Waterproof Sealant Clear -Wadities Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Patch & Seal Liquid Rubber Sealant for Indoor and Outdoor
11 out of 5 Stars. 1 reviewsShipping, arrives in 3+ days15-Pack of 5 oz Dap 18387 Crystal Clear Ultra Clear All Purpose Waterproof Liquid Rubber Sealant $99.35
$9935current price $99.3515-Pack of 5 oz Dap 18387 Crystal Clear Ultra Clear All Purpose Waterproof Liquid Rubber Sealant
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysSLUOHZXI Liquid Waterproof Sealant Clear, Wadities Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Patch and Seal Liquid Rubber Sealant for Indoor and Outdoor $12.34
4 optionsAvailable in additional 4 options$1234current price $12.34SLUOHZXI Liquid Waterproof Sealant Clear, Wadities Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Patch and Seal Liquid Rubber Sealant for Indoor and Outdoor
Shipping, arrives in 3+ daysMuecwrye Waterproof Sealant Spray, Roof Sealant Waterproof, Basement Wall Sealer Waterproof, Fix Vinyl Siding Hole, Liquid Rubber Waterproof Sealant,Leak Repair Indoor and Outdoor Coating $7.23 Was $8.45
Now$723current price Now $7.23, Was $8.45$8.45+$0.97 shippingMuecwrye Waterproof Sealant Spray, Roof Sealant Waterproof, Basement Wall Sealer Waterproof, Fix Vinyl Siding Hole, Liquid Rubber Waterproof Sealant,Leak Repair Indoor and Outdoor Coating
12 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysLiquid Rubber Waterproof Sealant - Water-Based Polyurethane Roof Leak Repair Coating for Exterior Walls 300ml $8.33
$833current price $8.33+$3.77 shippingMore options from $7.99Liquid Rubber Waterproof Sealant - Water-Based Polyurethane Roof Leak Repair Coating for Exterior Walls 300ml
Shipping, arrives in 3+ days(2 pack) Flex Seal Liquid Rubber Sealant Coating, 1 Gallon, White $220.00
$22000current price $220.00(2 pack) Flex Seal Liquid Rubber Sealant Coating, 1 Gallon, White
Save withPickup todayDelivery todayShipping, arrives todayAmes Block & Wall Liquid Rubber Coating 5 Gallon $234.66
$23466current price $234.66Ames Block & Wall Liquid Rubber Coating 5 Gallon
33.7 out of 5 Stars. 3 reviewsShipping, arrives in 3+ days
Customer ratings & reviews
Reviews summary
- : Application is straightforward and smooth.
- : Provides coverage with multiple coats.
- : Used for repairing various curved surfaces.
- : Smoothly glides for easy application.
- : Can be effective, but may not fully seal in all cases.
Customer images






+1 image
Showing 1-3 of 109 reviews
Seller Verified Purchase
A feeling of security at being leak proof.
Haven't had rain so cannot comment on the waterproof aspects of the product. However I can tell you that a physical inspection tells me there will be no issues. The sealant goes on like a thick tar. I kept feeling it as it remained somewhat sticky for a few days. Eventually it was not sticky and felt like a solid hard tar finish. I can tell this will do a fantastic job. I will be ordering more of this in the coming years should the new coating appear to be breaking down. Time will tell. Bob S.
Thanks for the great feedback and be sure to let us know how it performs over the long term.
Seller Verified Purchase
Sealant
Goes on thin so use about 4 - 6 light coats. Flashes off within 15 min. in warm temps & is easy to use. Keep stirring can as it'll 'skin' over in warm sunlight. Will seal effectively after it's cured!
Thanks for the great review! Awesome customers like you are why we work so hard to make the highest quality water-based waterproofing solutions available. Be sure to follow the guidelines to ensure a successful project. And remember we are here to support you before, during, and after your project. Have a great day!
Seller Verified Purchase
Great Product.
Great product, I used this on an olders house and it stood the test of time.
Thanks for the great review! Awesome customers like you are why we work so hard to make the highest quality water-based waterproofing solutions available. Be sure to follow the guidelines to ensure a successful project. And remember we are here to support you before, during, and after your project. Have a great day!
Frequently bought together
Liquid Rubber Multi-Surface Waterproof Sealant, Black, Indoor & Outdoor, 1 Gallon $69.95

Liquid Rubber Multi-Surface Waterproof Sealant, Black, Indoor & Outdoor, 1 Gallon
Hyper Tough 3" Flexible Putty Knife $3.78

Hyper Tough 3" Flexible Putty Knife
Best seller Duck Brand White Rubber Rope Caulk for Windows and Doors - 0.125 in. x 35 ft. $4.62

Duck Brand White Rubber Rope Caulk for Windows and Doors - 0.125 in. x 35 ft.
Deli 9-inch Drip-Free Caulking Gun with Ergonomic Steel Handle,Adjustable Hand ,Smooth Round Rod for 310ml/10oz Caulk tubes,10:1 Thrust Ratio $9.99 Was $15.99














