DAP Dynaflex 230 Sealant 10.1 oz. Gray

Experience a professional-grade solution for sealing windows, doors, trim and more. DAP Dynaflex 230 is an advanced elastomeric latex sealant that combines the flexibility and durability of silicone with the ease of use and cleanup of a premium latex formula. Whether you’re a contractor or a weekend DIYer, this gray sealant delivers long-lasting performance, crack-resistance and paintability for interior and exterior projects.

Ideal for sealing joints up to one inch wide, Dynaflex 230 permanently adheres to a wide range of substrates—including wood, PVC, fiber cement and more—while remaining highly flexible to accommodate expansion and contraction. Its mildew-resistant, waterproof finish protects against moisture intrusion and enhances energy efficiency.

Key Features

• 100% waterproof elastomeric formula
• Seals joints up to 1 in. wide
• Permanent adhesion with superior flexibility
• Paintable for seamless color matching
• Water-based cleanup for fast, hassle-free application
• Mildew* and crack-resistant for long-term durability
• Meets spec. TT-S-00230C, Type II Class A
• Engineered for up to 50 years of performance

⚠️ WARNING: This product can expose you to Silica, crystalline known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.