Flex Caulk is an excellent choice for sealing exterior siding and trim. It's designed to bond to a variety of surfaces, making it a versatile solution for sealing gaps, cracks, and joints around your home's exterior.

Flex Caulk adheres well to many common materials, including:

• Wood (finished or unfinished)
• Vinyl siding
• Brick and masonry
• Metal and aluminum trim
• PVC or plastic components

Choose the Right Formula for Your Project

Flex Caulk Hybrid bonds to porous and non-porous surfaces, is paintable, and can be applied even in wet or damp conditions.

Flex Caulk Silicone works best on dry, smooth, non-porous surfaces. Once fully cured, it can withstand temperatures from -70°F to 400°F and is 100% waterproof.

Best Practices for Application

• Clean and dry the surface before applying
• Apply in a continuous bead to prevent water intrusion
• Smooth with a gloved finger or caulk tool for a clean finish
• Allow 12–24 hours to cure (can take longer in cold or humid weather)

For more information on how to get the most out of Flex Caulk, click here.