Top 10 Waterproof Sealant Spray – Hardware Sealers

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1. Rust-Oleum

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Rust-Oleum 265495 LeakSeal Flexible Rubber Coating Spray, Clear, 11 oz

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Rust-Oleum #ad - Great for gutters roofs flashing ductwork pvc drains masonry concrete and more. Dries to a semi-smooth firm finish. Exterior/interior use on gutters, flashing, masonry, PVC, roofs, ductwork, concrete and more.

Coating will not sag or drip. Oil-based formula seals leaks and cracks instantly with a flexible rubber coating. Can actively build to fill gaps small holes and cracks. Flat finish can be top-coated with latex or oil based paints. Prevents water and moisture penetration for ultimate protection. Can be top-coated with latex or alkyd based paints. Dries to touch in 30 minutes and covers up to 8 sq. Ft.
BrandRust-Oleum #ad
ManufacturerRUST-OLEUM #ad
Height2.62 Inches
Length2.62 Inches
Weight0.68 Pounds
Width2.62 Inches
Part Number265495
Model265495

2. Flex Seal

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Black, 14-oz, Flex Seal Spray Rubber Sealant Coating

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Flex Seal #ad - Thick adhesive clings to the surface and can be used on dry or wet surfaces. Grab holds objects in place and in most cases. Is mildew and UV resistant, paintable, solvent free.
BrandFlex Seal #ad
ManufacturerSwift Response, LLC #ad
Height3.5 Inches
Length4.2 Inches
Weight0 Pounds
Width3.5 Inches
Part NumberFSR20
ModelFSR20

3. Krylon

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Krylon K01303A07 Crystal Clear Acrylic Coating Aerosol Spray, 6 Ounce

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Krylon #ad - Comes in 6-ounces aerosol can. Moisture resistant and smudge proof. Use for photography, watercolor, painted surfaces, charcoa pencil, wood crafts and much more. Crystal clear acrylic coating spray provides a permanent protective gloss coating that will not yellow with age.
BrandKrylon #ad
ManufacturerThe Sherwin-Williams Company (HI) #ad
Height6.9 Inches
Length2.2 Inches
Weight0.44 Pounds
Width2.2 Inches
Part NumberK01303A07
ModelK01303A07

4. Flex Seal

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14-oz, Clear, Flex Seal Spray Rubber Sealant Coating

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Flex Seal #ad - Is mildew and UV resistant, paintable, solvent free. Grab holds objects in place and in most cases. Thick adhesive clings to the surface and can be used on dry or wet surfaces.
BrandFlex Seal #ad
ManufacturerSwift Response, LLC #ad
Height2.5 Inches
Length9.5 Inches
Weight1 Pounds
Width2.5 Inches
Part NumberFSCL20
ModelFSCL20

5. Rust-Oleum

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Rust-Oleum 275116 LeakSeal Flexible Rubber Coating, Crystal Clear, 30 oz

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Rust-Oleum #ad - Ft. Prevents water and moisture penetration for ultimate protection. Exterior/interior use on gutters, masonry, roofs, PVC, flashing, ductwork, concrete and more. Flat finish can be top-coated with latex or oil based paints. Dries to touch in 1 hour and covers up to 40 sq. Oil-based formula seals leaks and cracks instantly with a flexible rubber coating.
BrandRust-Oleum #ad
ManufacturerRust-Oleum #ad
Height4.88 Inches
Length4.25 Inches
Weight0.2 Pounds
Width4.25 Inches
Part Number275116
Model275116

6. Krylon

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Krylon K05130107 ColorMaster Acrylic Crystal Clear, 11 oz., Gloss, Clear

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Krylon #ad - For use on plastic, metal, wood and more. Perfect for indoor and outdoor projects. Durable covermax technology for premium coverage and brilliant color. Dries in 10 minutes or less.
BrandKrylon #ad
ManufacturerTV Non-Branded Items #ad
Height7.87 Inches
Length2.56 Inches
Weight0.5 Pounds
Width7.87 Inches
Part Number51301
Model51301

7. Loctite

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Loctite TITE FOAM Insulating Foam Sealant, Gaps & Cracks, 12-Ounce Can

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Loctite #ad - Superior flexibility: Withstands building and material movement without compromising its seal. Straw applicator: For application simply use the attached straw applicator for a quick solution. Strong adhesion: sealant bonds to most building materials like wood, concrete, brick, stone, pvc, metal, and more. Uv resistance: Withstands harsh UV rays for long lasting results. Expands to fill: loctite tite foam gaps & Cracks fills, seals, and insulates effectively around gaps and cracks up to 1 inches in size.
BrandLoctite #ad
ManufacturerHenkel Corp #ad
Height7.87 Inches
Length2.56 Inches
Weight0.92 Pounds
Width2.56 Inches
Part Number1988753
Model1988753

8. Krylon

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Krylon K01303007 Acrylic Spray Paint Crystal Clear in 11-Ounce Aerosol

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Krylon #ad - Improves artwork and photo contrast. Dry to handle in 2 hours. Moisture-resistant and smudge-proof. For use on paper, metal, paper Mache, wood, ceramic, glass, plaster, dried silk flowers and plastic. Dries to the touch in 10 to 15 minutes.
BrandKrylon #ad
ManufacturerKrylon #ad
Height8 Inches
Length2.5 Inches
Weight0.88 Pounds
Width2.45 Inches
Part NumberK01303007
ModelK01303007
WarrantyNo Warranty

9. Gaffer Power

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Patch & Shield Power Tape Black, All Weather Patch Tape | Stretchy Sealing Tape for Roofing, Waterproof Tape for Pipes | Patch Holes & Cracks | Butyl Tape 4 inch x 5 feet

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Gaffer Power #ad - Every american homeowner should have this tape in their back pockets. Gaffer power's heavy duty waterproof tape is designed with an ultra-strong adhesive backing that sticks to any surface and holds up dutifully under conditions of extreme cold, dampness & moisture or mold & mildew. Active from -70 to 200 degrees F. Power patch waterproofing tape is American built to last.

Heavy duty all-weather use: don't get stuck out on vacation with a leaking rv or tent, sweltering heat, or at home worrying about catching drips from the ceiling after whipping wind & storms. Say goodbye cracks & holes and apply 4” wide tape for the perfect roof patch, nail hole patch, pipe & gutter leaks – Use as outdoor shed or greenhouse repair tape! Issues aren't common when it comes to the best patch tape on Amazon, but if anything is wrong we stand by our commitment to quality and offer a Guaranteed Replacement or Your Money Back. The gaffer power guarantee: we know you'll love the endless uses you'll find for our roof waterproof patch tape.

100% waterproof keeps you dry: our adhesive patch tape is expertly engineered to hold water in or keep water out wherever you need it. 100% waterproof tape works to fix leaky above-ground pools, water tanks, drums & storage containers - creating a tight, even seal that increases with pressure. Solve any sealing problem: gaffer power's power patch tape brings you a dynamic, flexible butyl tape that creates professional-grade sealing results in a pinch and in the long term. Unrivaled made in usa quality: gaffer power is committed to our Made in USA engineering process.
BrandGaffer Power #ad
ManufacturerWebgage Commerce Inc. #ad
Weight0.44 Pounds
Part NumberGPPROFLEX

10. Minwax

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Satin, Minwax 33060000 Fast-Drying Polyurethane Aerosol, 11.5 ounce

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Minwax #ad - Long lasting durable finish. This product is manufactured in United States. Purpose of use for Painting Supplies, household-wood-stains. Hardest of protective coatings. Easy to apply, easy-care. Finish. This item is a minwax 33060 Fast-Drying Polyurethane, Satin Finish. Dries fast and offers long lasting beauty on both finished and unfinished wood surfaces.
BrandMinwax #ad
ManufacturerMinwax #ad
Height8 Inches
Length3 Inches
Weight0.9 Pounds
Width3 Inches
Part Number33060000
Model33060000