Can You Use Flex Seal in the Winter?
When winter weather rolls in, your repairs don’t have to wait. The Flex Seal Family of Products is designed for year-round use, including in cold, damp conditions. With the right prep and application tips, you can confidently seal, patch, and protect surfaces, even when temperatures drop.
Using Flex Seal Products in Winter
Flex Seal products can be applied in lower temperatures; however, cold and damp weather may slow cure times and affect how the product flows or adheres. For best results:
- Make sure surfaces are clean
- Apply during the warmest part of the day whenever possible
- Allow extra time for the product to cure or bond fully
- Store products indoors before use to maintain proper consistency
Product Details and Temperature Ranges
Flex Seal Spray
Liquid rubber in a can that can be applied to surface temperatures from 0°F to 100°F. Once fully cured, Flex Seal Spray can withstand temperatures from -20°F to 140°F.
Flex Paste
A thick, rubberized paste that stays workable in the cold. It spreads easily and cures into a waterproof, flexible seal. It can be applied in a wide range of temperatures from 0°F to 150°F. Once fully cured, Flex Paste can withstand temperatures from -40°F to 200°F.
Flex Tape
A heavy-duty adhesive that can be applied to wet or cold surfaces. It’s ideal for fast winter repairs on roofs, gutters, pipes, and more. Flex Tape is best applied to surface temperatures from 20°F to 120°F and can withstand temperatures from -70°F to 200°F.
Flex Caulk
Both Hybrid and Silicone formulas are cold-weather ready. Flex Caulk Hybrid can be applied to wet surfaces at temperatures from 0°F to 150°F. Once fully cured, it can withstand temperatures from -75°F to 220°F. Flex Caulk Silicone is best applied to surface temperatures from -35°F to 150°F and, once cured fully, can withstand temperatures from -70°F up to 400°F.
Flex Seal Draft & Insulation Tape
Specifically designed to seal out cold air. Use it around doors, windows, vents, and any spot where winter drafts sneak through. Avoid using on wet surfaces.
Flex Seal Winter Wax
Protects vehicles, tools, and outdoor gear from ice, salt, snow, and grime. Apply before bad weather hits for long-lasting seasonal protection.
Flex Seal De-Icer
A winter maintenance essential for everyday use. Quickly melts ice buildup on windshields, locks, and frozen surfaces. Note: Sprays best when contents are above 60°F.
Flex Seal products are made for all-season repairs, and winter is no exception. With the right prep and a product lineup built to withstand cold, moisture, and harsh conditions, you can confidently take on cold-weather maintenance and repairs. For more winter tips, check out our blog on home winterization.
