What Type of Sealant Should You Use When Installing Gutters?

Silicone gutter sealant is ideal for mounting or repairing gutters. Gorilla's waterproof tape provides a durable repair almost immediately. Flex Seal is one of the best brands for sealing gutters. Professionally installed gutters should already have been sealed.

What Type of Sealant Should You Use When Installing Gutters?

Silicone gutter sealant is the ideal choice for mounting or repairing gutters. This clear sealant dries quickly and remains flexible enough to move with the expansion and contraction of the gutter. It can take anywhere from less than an hour to about two days for the sealant to completely dry, which can be a great help if you're in a hurry to finish the repair, especially if it needs to be painted. Gorilla's waterproof tape is another great option for quick repairs.

It's four inches wide, making it perfect for major cracks or crevices, and it has an incredibly strong adhesive grip on all gutter materials. It's also UV-resistant and can withstand temperatures from -70 degrees Fahrenheit to 200 degrees Fahrenheit. Each roll contains ten feet of tape, and it can be stored almost indefinitely if kept in an airtight bag. Some polyurethane sealants can be applied while there is moisture, although it's generally recommended that gutters be dry when sealed.

This can vary depending on the temperature, but usually two to three hours after it stops raining should be enough time.

Flex Seal

is one of the best brands for sealing gutters, and we have two recommendations on our list. They have a lot of options available, including different types of sealants, as well as safe options for plants and pets (although some of their products contain hazardous chemicals). Professionally installed gutters should already have been sealed, but the putty will need to be replaced approximately every decade.

The best gutter sealants have certain features in common, such as flexibility to move with wind and temperature changes, and high adhesion on all gutter materials. Rust-Oleum gutter spray sealant contains butyl rubber, which is well known for its flexibility and strong adhesion. When choosing a gutter sealer, make sure you read the instructions carefully and follow them as strictly as possible. If you only need to do a small repair job, it may be more economical to buy a versatile sealant that could come in handy in the future.

Erica Harjo
Erica Harjo

Typical food practitioner. Avid coffee lover. Lifelong web maven. Certified internetaholic. Unapologetic web aficionado.

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