DYNAFLEX ULTIMATE Premium All Weather Exterior Sealant for Windows, Doors, Siding & Trim

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BEST FOR:Weatherproofing, Window & Door, Siding, Trim

COLORS

FEATURES & BENEFITS

Formulated to help resist cracking over time.

Formulated to withstand rain, wind, and temperature changes, supporting a reliable, long-lasting seal in all weather conditions.

Bonds reliably to damp or wet surfaces, helping maintain a secure seal in challenging conditions.

Suitable for both interior and exterior applications, supporting versatility across multiple projects.

Adheres to a wide variety of common building materials, including wood, vinyl, metals, fiber cement, masonry, and glass.

VOC-compliant formulation with low odor that cleans up easily with water.

Meets ASTM C920 standards for high-performance sealants, with flexibility classifications depending on the version.

Maintains flexibility over time to accommodate movement and temperature changes.

DESCRIPTION

DAP DYNAFLEX ULTIMATE Premium All-Weather Sealant for Window, Door, Siding & Trim is formulated for a wide range of interior and exterior applictions. The all-weather formula is designed for smooth gunning and clean tooling in temperatures ranging approximately from 20-30°F to 120°F, helping maintain consistent application in both cooler and warmer environments. The sealant supports strong adhesion to damp or wet surfaces, and once cured, forms a durable, flexible seal that resists cracking and breakdown over time. Formulated to meet ASTM C920 requirements, with flexibility classifications ranging from Class 35 to Class 50 depending on the specific version, the product supports long-term durability and joint performance. Designed to be rain ready and paintable with most latex and oil-based paints within 30 minutes to 1 hour, the sealant helps keep project timelines on track and has excellent adhesion to a wide variety of common building materials. It is also VOC compliant, features a low-odor formula, and cleans up with water.