Our exterior window sealant is a high-quality, durable product designed to create a strong, waterproof seal around your windows. Formulated to withstand harsh weather conditions, this sealant offers superior UV resilience and long-lasting performance. It’s perfect for preventing drafts, moisture, and unwanted pests from making their way into your home.
This exterior window sealant adheres strongly to most surfaces including wood, vinyl, and metal, providing excellent adhesion capabilities. It makes your windows highly resistant to wear and tear, providing excellent longevity for every application. Easy to apply, this sealant goes on smoothly, filling in all gaps and cracks comprehensively.
One great feature of this premium sealant is its flexibility. Despite its strong bond, it maintains a flexibility that allows it to expand and contract with the window through changing seasons. This means it won’t crack or peel over time, giving you a flawless finish year-round.
Its clear formulation ensures that it doesn’t stand out or change the aesthetic appearance of your windows. It dries quickly and doesn’t leave any sticky residue behind. This sealant is also paintable, giving you the option to perfectly blend the sealed areas with the rest of the window if needed.
Moreover, the sealant is also mildew and mold resistant, ensuring a
The Ultimate Top 10 Best Exterior Window Sealant, To Buy
1#. DAP 804 Side Winder Advanced Polymer Siding & Window Sealant, Clay, 10.1 oz
Features
Advanced polymer formula
Permanently flexible
Cedar color
Advanced polymer formula siding sealant delivers excellent performance on vinyl, fiber cement, aluminum and wood siding
Permanently flexible
Wet weather and low temperature application
No shrink and virtually no VOC’s, less than 1%
Interior and exterior use
2#. GE M90016 Supreme Silicone Window & Door Sealant, 10.1oz, Clear
Features
100% WEATHERPROOF: This 100% silicone formula offers ultimate protection from water damage, providing a reliable seal in areas prone to consistent weather and water exposure
LIFETIME MOLD-FREE PRODUCT PROTECTION: Resists stain-causing mold and mildew growth
100% MORE FLEXIBILITY & 7X STRONGER ADHESION: Stays permanently flexible with excellent adhesion and provides a durable seal for exterior and interior projects
30-MINUTE RAIN-READY: Ready for rain exposure in as little as 30 minutes
SHRINK & CRACK-PROOF: Withstands extreme expansion or contraction associated with temperature fluctuations
FREEZE & SUN-PROOF: Resists freezing temperatures and UV degradation for a permanently flexible seal
WON’T BLEMISH METALS: Will not discolor most high-end metal finishes like chrome, bronze and nickel
BACKED BY A LIFETIME GUARANTEE: Get high-quality results, guaranteed for as long as you own your home
NON-PAINTABLE: Designed for applications in which the seal or area will not be painted
See product packaging images provided on this product page for complete performance and warranty information
3#. Red Devil 0846 Window & Door Siliconized Acrylic Caulk, 10.1 oz, White
Features
The product is 10.1 oz, white, window, door & siding caulk
Elegant and smooth finish
The product is manufactured in china
10.1 oz cartridge great for larger or multiple jobs.
Advanced siliconized acrylic formula
10.1 oz cartridge great for larger or multiple jobs.
Advanced siliconized acrylic formula
Helps increase energy evidence by reducing drafts and cold spots
35 Year limited warranty
Water clean up for easy use
4#. Red Devil 0795 StormGuard 920 100% RTV Silicone Window and Door Sealant, A Water-Resistant Adhesive for Interior and Exterior Use, 2.8 oz. Tube, Clear, 1-Pack
Features
WEATHER-RESISTANT SEALANT: The one-part, neutral cure, 100% RTV silicone sealant is specially formulated for weather-resistant external window & door applications such as skylights, aluminum siding, trim, gutters, vents, and pipes
EXCELLENT ADHESION TO VARIOUS SURFACES: This 100% Silicone Sealant can be used on a variety of indoor and outdoor surfaces and adheres to metals, painted and unpainted wood, glass, plaster/drywall, brick, plastic, and vinyl
WILL NOT CRACK, SHRINK OR PEEL: With its Superior Flexibility, the multi-purpose sealant will withstand the elements and won’t crack, peel or shrink for a dependable seal that lasts for years
LOW ODOR FORMULA: The advanced formula sealant is VOC compliant and boasts a low odor, and is USDA Recognized, ideal for use in enclosed spaces like bathrooms
FOR BEST RESULTS: Before applying the sealant, remove any old caulk, debris, or other residues that might interfere with adhesion and make sure the architectural grade RTV Sealant is used on clean, dry surfaces for best results
5#. GE Sealants & Adhesives M90015 Supreme Silicone Window & Door Sealant, 10.1oz, White
Features
100% Weatherproof: This 100% Silicone Formula Offers Ultimate Protection From Water Damage, Providing A Reliable Seal In Areas Prone To Consistent Weather And Water Exposure
Lifetime Mold-Free Product Protection: Resists Stain-Causing Mold And Mildew Growth
100% More Flexibility & 7X Stronger Adhesion: Stays Permanently Flexible With Excellent Adhesion And Provides A Durable Seal For Exterior And Interior Projects
30-Minute Rain-Ready: Ready For Rain Exposure In As Little As 30 Minutes
6#. Red Devil 0826 100% Silicone Sealant Architectural Grade, Silicone Architectural Grade RTV Sealant, A Water-Resistant Adhesive for Interior and Exterior Use, 9.8 oz. Tube, Clear, 1-Pack
Features
Tough 100% silicone rubber
Stays flexible, long-lasting sealing
Resists water
Architectural grade
Will not crack shrink or peel
50 year limited warranty
Can be applied at temperatures below freezing
7#. 12 Pack Dap 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant – White 10.1-oz Cartridge (18275)
Features
White DYNAFLEX 230 Premium Elastomeric Sealant 10.1 oz
DAP’s most advanced latex sealant technology.
Provides excellent adhesion and a watertight, weatherproof seal.
Cured caulk. Interior/exterior use.
Federal Spec. TT-S-00230C, Type II, Class A, ASTM Spec. C 920, Class 25
8#. GE Advanced Silicone Window & Door Sealant Black, 10.1 oz, 1, Cartridge
Features
100% Waterproof and Weatherproof: 100% silicone formula offers protection against water damage, providing a reliable seal in areas prone to harsh weather
10-Year Mold-Free Product Protection: Cured sealant is resistant to stain-causing mold and mildew growth
Permanently Flexible with Strong Adhesion: Sealant offers 40% more flexibility than Class 25 sealants and 7X stronger adhesion than our Silicone 1* sealant
Durable: Rain-ready in as little as 30 minutes, and resistant to shrinking and cracking due to temperature fluctuations
Compatible with Most Materials: Adheres to most metals and woods; aluminum, composites, brick, stone, stucco, masonry, cement board, glass, drywall, ceramic and porcelain tile; and more
9#. GE Sealants & Adhesives GE5000 Advanced Silicone 2 Window & Door Sealant Clear, 10.1oz, 10 Fl Oz
Features
100% Waterproof and Weatherproof: 100% silicone formula offers protection against water damage, providing a reliable seal in areas prone to harsh weather
10-Year Mold-Free Product Protection: Cured sealant is resistant to stain-causing mold and mildew growth
Permanently Flexible with Strong Adhesion: Sealant offers 40% more flexibility than Class 25 sealants and 7X stronger adhesion than our Silicone 1* sealant
Durable: Rain-ready in as little as 30 minutes, and resistant to shrinking and cracking due to temperature fluctuations
Compatible with Most Materials: Adheres to most metals and woods; aluminum, composites, brick, stone, stucco, masonry, cement board, glass, drywall, ceramic and porcelain tile; and more
10#. Gorilla Waterproof Caulk & Seal 100% Silicone Sealant, 10oz Cartridge, Clear (Pack of 1)
Features
SEALS OUT WATER, AIR & MOISTURE
30 MINUTE WATER READY
INDOOR/OUTDOOR: All Weather
100% WATERPROOF
WON’T YELLOW, SHRINK OR CRACK
AVAILABLE IN CLEAR AND WHITE
GREAT FOR: Kitchen, Bath, Window, Door, Plumbing, Gutters, Auto, Marine and more.
