Caulk is not something we often think about in our daily lives. However, homeowners, builders, and construction workers must maintain and preserve buildings.
Whether fixing cracks, sealing joints, or preventing moisture from entering your home, exterior caulk is a simple yet highly effective material. In this article, we’ll explore the best exterior caulk options available in 2024, how to choose the right one, and tips on using it properly.
Let’s get straight to the point.
Caulk is important for maintaining homes and buildings. It seals cracks and joints and prevents moisture intrusion. When choosing exterior caulk, consider the surface material, moisture resistance, location, paintability, and ease of application.
Proper caulk application involves cleaning the surface, cutting the tube tip correctly, applying it evenly, and cleaning it up afterwards. Top exterior caulks for 2024 include products like Sashco Big Stretch, DAP 18110, Red Devil EZ Caulk, and Gorilla Silicone, known for their flexibility, durability, and weatherproof properties.
Each product offers specific benefits for various surfaces and environments. Additionally, removing old caulk before applying new is essential for a clean finish. Choosing the right caulk and applying it properly can significantly improve your home’s protection, energy efficiency, and longevity.
Best Exterior Caulk Options
Below is a list of the top 10 exterior caulk options for 2024. These products have been selected based on durability, flexibility, and ease of application.
1. Sashco Big Stretch Acrylic Latex Caulking Sealant
- Comes in a 10.5-ounce cartridge and is very flexible.
- It can expand to 500% of its original size, ideal for joints that may experience movement.
- Weatherproof and suitable for sealing windows, doors, and siding.
2. DAP 18110 Acrylic Latex Caulk with Silicone
- A flexible, moisture-resistant caulk is available in a 10.1-ounce cartridge.
- Dries in 30 minutes and can be painted over.
- Ideal for use on wood, metal, and concrete.
3. DAP 18152 Acrylic Latex Sealant (12-Pack)
- A durable 12-pack set designed for large projects or professionals.
- Offers a 35-year guarantee, making it highly durable.
- Suitable for both interior and exterior use on multiple surfaces.
4. Red Devil 0848 EZ Caulk
- Designed specifically for sealing around doors and windows.
- Comes in a user-friendly 5-ounce cartridge with an EZ Squeeze mechanism.
- Water-resistant and can be painted once dry.
5. Gorilla 100 Percent Silicone Sealant Caulk
- A versatile, 100% silicone caulk that can be used on glass, wood, metal, and more.
- Completely waterproof and suitable for indoor and outdoor use.
- Ideal for kitchens, bathrooms, and outdoor fixtures like gutters.
6. Sashco Sealants Clear Lexel Adhesive Caulk
- It can be applied on wet surfaces, making it perfect for plumbing jobs.
- Highly flexible and resistant to cracking, even in extreme weather conditions.
- Comes in a 10.5-ounce cartridge and is suitable for indoor and outdoor use.
7. GE Silicone 2+ Window & Door Caulk
- Specially designed for sealing around doors and windows to prevent drafts and moisture entry.
- It drys in less than 30 minutes and can be painted or washed with water.
- Durable enough to last for more than 10 years after application.
8. DAP Alex Plus Acrylic Latex Caulk
- A smaller, 5.5-ounce cartridge is suitable for minor repairs.
- It can be used on wood, metal, or masonry and dries quickly.
- Offers 35-year durability, making it a cost-effective option for long-term projects.
9. GE Silicone I All-Purpose Caulk
- A 100% silicone caulk that provides a permanent, weatherproof seal.
- It can be used on doors, windows, siding, and more.
- Resists shrinking and cracking, making it ideal for areas exposed to extreme weather.
10. Red Devil Elastomeric Acrylic Latex Sealant
- A high-performance acrylic latex caulk that includes HomeShield Antimicrobial Protection.
- Suitable for various surfaces, including cement, wood, metal, and tiles.
- Provides a long-lasting seal that prevents moisture and mildew from entering your home.
What To Consider When Purchasing Caulk?
Before purchasing exterior caulk, knowing what to look for is essential. These factors will help you choose the right product for your project:
1. Materials
- Different caulks adhere better to certain surfaces. Always match the caulk type to the material you’re sealing.
- Some caulks work better on wood, while others may be more effective on metal, glass, or masonry.
2. Moisture Resistance
- If your caulking area is often exposed to moisture, you need a waterproof and mildew-resistant caulk. This is especially important for outdoor areas.
3. Location
- Exterior caulks are specifically designed for outdoor use. Ensure you choose a caulk that can withstand harsh weather conditions like rain, snow, or extreme heat.
4. Paintability
- Not all caulks can be painted over. If aesthetics are important, make sure to select a paintable caulk.
5. Application Ease
- Choose a caulk that can be cleaned up with water and doesn’t have a strong odour, making it easier and safer to apply.
How To Apply Caulk Properly?
Using caulk effectively requires proper application. Below are some tips to help you achieve the best results:
1. Prepare The Surface
- Clean and dry the surface before applying caulk. Any dirt, dust, or grease can prevent proper adhesion.
- If you’re caulking wood, paint it with a primer before applying the caulk.
2. Cut The Caulk Tube Tip Correctly
- Don’t cut too much of the tip off the caulk tube; a small opening ensures better control over the caulk flow.
3. Widen The Joints
- Use a putty knife to widen joints or cracks smaller than ¼ inch to ensure the caulk fills the gap properly.
4. Apply The Caulk
- Move the caulking gun slowly for an even application. Smooth the caulk with a damp cloth or caulk-smoothing tool within a few minutes of application.
5. Clean Up
- After application, clean the area and your hands with water or the appropriate cleaning solution based on the caulk type (mineral spirits for silicone caulk).
6. Caulking Around Mouldings
- Apply enough pressure with your fingers to shape the caulk into a clean corner joint, but avoid overfilling the gaps.
7. Special Tips For Bathrooms
- When caulking around bathtubs or sinks, fill the bathtub with water before caulking. This ensures the caulk will stretch properly when the tub is in use.
Tips For Removing Old Caulk
Before applying a new caulk, removing any old or damaged caulk is important to ensure a smooth and effective application. Here’s how you can do it:
- Use a Caulk Removal Tool: These tools are designed to scrape away old caulk without damaging surfaces.
- Soften with Caulk Remover: For stubborn caulk, a caulk remover solution can soften the old material, making it easier to remove.
- Clean the Surface: After removing the caulk, clean the area with rubbing alcohol to remove any remaining residue.
Conclusion
Exterior caulk is a vital material for maintaining the integrity of your home. Whether you’re sealing cracks, joints, or gaps, choosing the right caulk for the job is essential for long-lasting protection. The caulks listed above are the best options for 2024, offering flexibility, durability, and ease of use.
- Always choose a caulk based on the material you’re working with, its moisture resistance, and whether it can be painted.
- Proper application is key to a long-lasting seal. Always clean and prepare the surface, cut the tube tip carefully, and smooth out the caulk after application.
- Different caulks work best for specific applications. Weather-resistant silicone caulk is ideal for windows and doors, while flexible acrylic latex caulk is recommended for larger cracks.
- Removing old caulk is important to ensure a clean and professional finish.
Using the right caulk can prevent damage, improve energy efficiency, and protect your home from the elements for years.
FAQs About Exterior Caulk
What Factors Should I Consider When Choosing Exterior Caulk?
When selecting exterior caulk, consider the surface material, moisture resistance, intended location, paintability, and ease of application. Ensure the caulk is compatible with surfaces like wood, metal, or masonry and suited to outdoor conditions, such as exposure to moisture and temperature changes.
Can I Paint Over The Exterior Caulk?
Not all caulks are paintable. Acrylic latex caulks are generally paintable, making them a good choice for projects where aesthetics are essential. Silicone caulks, on the other hand, are typically not paintable, so check the product label if you plan to paint over the caulk.
How Do I Properly Apply Exterior Caulk?
Start by cleaning and drying the surface thoroughly. Cut a small opening at the caulk tube’s tip for control, then apply evenly along the joint. Use a damp cloth or caulk-smoothing tool to smooth the bead immediately after application. Cleaning up promptly ensures a neat finish and optimal adhesion.
How Do I Remove The Old Caulk Before Applying For A New One?
Use a caulk removal tool or softening solution to loosen old caulk. Scrape carefully to avoid surface damage, then clean the area with rubbing alcohol to remove residue. Proper surface preparation is essential for a strong, lasting bond with the new caulk.
