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10 Best Exterior Caulks 2025 in the United States
#1
Winner
Gorilla 8050002 Clear Silicone Sealant, 1-Pack
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.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!#2
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant, White, 10oz Cartridge (Pack of 1)
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.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!#3
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant; Clear; 2.8oz Squeeze Tube (Pack of 2)
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.
Top 10 Best Exterior Caulks 2025 in the United States
#1
Winner
10.0 score
Gorilla 8050002 Clear Silicone Sealant, 1-Pack
Gorilla 8050002 Clear Silicone Sealant, 1-Pack
Cure Time: 30 Minutes
Chosen by 1492 this week
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant, White, 10oz Cartridge (Pack of 1)
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant, White, 10oz Cartridge (Pack of 1)
Material Type: 100% Silicone
Weather Resistance: Mold and mildew resistant, indoor/outdoor
Paintability: Not paintable
Cure Time: 30 Minutes
Flexibility: Flexible
Adhesion: Strong adhesion
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant; Clear; 2.8oz Squeeze Tube (Pack of 2)
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant; Clear; 2.8oz Squeeze Tube (Pack of 2)
Material Type: Acid Cure Silicone
Weather Resistance: Yes
Paintability: No
Cure Time: 30 min to 24 hours
Flexibility: Yes
Adhesion: Steel, porcelain, wood, glass
GE Advanced Silicone Caulk for Window & Door - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Freeze & Sun Proof - 2.8 fl oz Tube, Clear, 1 Pack
GE Advanced Silicone Caulk for Window & Door - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Freeze & Sun Proof - 2.8 fl oz Tube, Clear, 1 Pack
Material Type: 100% silicone
Weather Resistance: waterproof and weatherproof
Cure Time: 24 Hours
Flexibility: maintains flexibility
Adhesion: 5 times stronger than GE's Silicone 1
GE All Purpose Silicone Caulk - 100% Waterproof Silicone Sealant, Stronger Adhesion, Freeze & Sun Proof - 10 oz Cartridge, Clear, Pack of 1
GE All Purpose Silicone Caulk - 100% Waterproof Silicone Sealant, Stronger Adhesion, Freeze & Sun Proof - 10 oz Cartridge, Clear, Pack of 1
Material Type: Silicone
Weather Resistance: 100% waterproof and weatherproof
Paintability: Not paintable
Cure Time: 24 Hours
Flexibility: Flexible
Adhesion: Strong adhesion to metals, woods
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GE Advanced Silicone for Window & Door - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Shrink & Crack Proof, Non-paintable - 10 oz Cartridge, White, Pack of 1
GE Advanced Silicone for Window & Door - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Shrink & Crack Proof, Non-paintable - 10 oz Cartridge, White, Pack of 1
Material Type: 100% waterproof silicone
Weather Resistance: Protects against water and harsh weather
Paintability: Non-paintable
Cure Time: Rain-ready in 30 minutes, fully cures in 24 hours
Flexibility: 40% more flexible than Class 25 sealants
Adhesion: 5 times stronger than standard silicone
DAP Dynaflex Ultra Advanced Exterior Sealant, Light Gray, 10.1 Oz (7079818219)
DAP Dynaflex Ultra Advanced Exterior Sealant, Light Gray, 10.1 Oz (7079818219)
Material Type: Advanced Latex
Weather Resistance: 100% waterproof and weatherproof
Paintability: Paintable within an hour
Cure Time: 24 Hours
Flexibility: Strong
Adhesion: Robust on multiple materials
3M Marine Grade Silicone Sealant, 08019, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, Clear, 3 fl oz Tube
3M Marine Grade Silicone Sealant, 08019, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, Clear, 3 fl oz Tube
Material Type: Silicone
Weather Resistance: Excellent
Cure Time: 24 hours
Flexibility: Tough and flexible
Adhesion: Strong
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Buying Guide for the Best Exterior Caulks
Choosing the right exterior caulk is essential for ensuring that your home is well-protected from the elements. Exterior caulks are used to seal gaps and cracks on the outside of your home, preventing water, air, and pests from entering. When selecting an exterior caulk, it's important to consider several key specifications to ensure you get the best product for your needs. Understanding these specifications will help you make an informed decision and achieve the best results for your project.Material TypeThe material type of caulk determines its durability, flexibility, and suitability for different surfaces. Common types include silicone, polyurethane, and acrylic latex. Silicone caulks are highly flexible and waterproof, making them ideal for areas exposed to a lot of moisture. Polyurethane caulks are extremely durable and adhere well to a variety of surfaces, but they can be harder to work with. Acrylic latex caulks are easy to apply and clean up with water, but they may not be as durable as silicone or polyurethane. Choose a material type based on the specific needs of your project, such as the level of exposure to moisture and the type of surfaces you are sealing.
Weather ResistanceWeather resistance is crucial for exterior caulks as they need to withstand various environmental conditions, including rain, snow, and UV rays. A caulk with high weather resistance will maintain its seal and flexibility over time, preventing cracks and leaks. Look for caulks labeled as 'weatherproof' or 'all-weather' to ensure they can handle the climate in your area. If you live in an area with extreme weather conditions, opt for a caulk with superior weather resistance to ensure long-lasting performance.
PaintabilityPaintability refers to the ability of the caulk to be painted over once it has cured. This is important if you want the caulk to blend in with the surrounding surfaces. Some caulks are specifically designed to be paintable, while others, like pure silicone caulks, are not. If you plan to paint over the caulk, choose a paintable option and ensure it matches the type of paint you will be using. This will help achieve a seamless and aesthetically pleasing finish.
Cure TimeCure time is the amount of time it takes for the caulk to fully set and become effective. This can range from a few hours to several days, depending on the type of caulk and environmental conditions. Faster curing caulks are convenient for projects that need to be completed quickly, while longer curing times may be acceptable for less urgent tasks. Consider your project timeline and choose a caulk with a cure time that fits your schedule. Keep in mind that temperature and humidity can affect cure time, so plan accordingly.
FlexibilityFlexibility is the ability of the caulk to expand and contract with the movement of the surfaces it is sealing. This is important for preventing cracks and maintaining a strong seal over time. Highly flexible caulks are ideal for areas that experience significant temperature fluctuations or movement, such as around windows and doors. If you are sealing joints that are prone to movement, opt for a caulk with high flexibility to ensure it remains intact and effective.
AdhesionAdhesion refers to how well the caulk sticks to different surfaces. Good adhesion is essential for creating a strong, long-lasting seal. Some caulks are formulated to adhere better to specific materials, such as wood, metal, or masonry. When choosing a caulk, consider the surfaces you will be sealing and select a product that is designed to adhere well to those materials. This will ensure a secure and durable seal that prevents leaks and drafts.