10 Best Exterior Caulks 2025 in the United States

The Gorilla Waterproof Caulk & Seal 100% Silicone Sealant is a versatile and durable option for anyone needing to seal out water, air, and moisture. Its standout feature is its quick curing time; it becomes water-ready in just 30 minutes, which is an excellent advantage for those needing a fast solution.

Additionally, its mold and mildew resistance ensures long-lasting performance without yellowing, shrinking, or cracking, making it suitable for both indoor and outdoor use in various weather conditions. The flexibility and strong adhesion of this sealant allow it to be used on a wide range of surfaces, including stainless steel, wood, glass, and more.

However, it should be noted that being 100% silicone, this sealant may not be paintable, which can be a limitation if you want to match the color of the sealed area with the surrounding environment. The 10-ounce cartridge size is standard but might not be enough for larger projects. This product is excellent for quick repairs and versatile applications, especially where durability and resistance to elements are critical.

The Gorilla Clear Sealant, with its 10-ounce capacity and clear finish, offers good performance for general exterior caulking needs. One of its standout features is the fast full cure time of just 30 minutes, which is quite efficient compared to other sealants that may take longer to cure. This can be particularly beneficial for users looking to complete their projects quickly. The product is also manufactured by the reputable Gorilla Glue Company, adding to its credibility and trustworthiness.

Moreover, the sealant's transparency makes it versatile for various applications without altering the appearance of the surfaces it is applied to. This product is ideal for general sealing tasks around the home and for those who need a quick-curing, clear option. Users should consider additional requirements, such as flexibility and extreme weather resilience, if their projects demand it.

The Gorilla Waterproof Caulk & Seal 100% Silicone Sealant is a versatile option for various sealing needs. It excels in weather resistance, making it suitable for both indoor and outdoor use. This caulk is great for kitchens, bathrooms, windows, doors, and even more challenging environments like auto and marine applications.

One of its standout features is the quick cure time; it can be exposed to water in just 30 minutes under the right conditions, although it's generally safer to wait 24 hours for it to cure fully. The mold and mildew resistance ensures longevity without yellowing, shrinking, or cracking, which is ideal for maintaining a clean and durable seal over time.

Additionally, it adheres well to a wide range of materials, including stainless steel, porcelain, wood, and glass, among others, enhancing its flexibility and usability in different scenarios. However, since it is 100% silicone, it means you cannot paint over it, which might be a drawback if you need the sealant to match a particular color. The 2.8oz squeeze tube size makes it convenient for smaller projects, but it might not be sufficient for larger jobs. Gorilla's sealant is best suited for those looking for a strong, durable seal that resists harsh conditions and doesn't require painting.