DAP DYNAFLEX 230 Premium Elastomeric Sealant is a high-performance acrylic latex sealant designed for both interior and exterior applications. Its “silicone-tough” formula delivers superior flexibility and durability, allowing it to withstand expansion and contraction caused by temperature and humidity changes without cracking or losing adhesion.

This professional-grade sealant creates a 100% waterproof and weatherproof seal, making it ideal for sealing gaps around windows, doors, siding, trim, and other building materials.

Key Features

• Silicone-tough flexibility for crack-proof performance

• Paintable in approximately 2 hours

• 100% waterproof and weatherproof seal

• Interior and exterior use

• Low odor with easy water cleanup

• Seals joints up to 2 inches wide

• Mold and mildew resistant when cured

• Lifetime performance warranty

Typical Applications

DAP DYNAFLEX 230 is commonly used for sealing gaps and joints around:

• Windows and doors

• Exterior siding

• Baseboards and trim

• Crown molding

• Vents and pipes

• Corner joints and butt joints

• Masonry, concrete, and brick surfaces

It adheres to many common construction materials including wood, aluminum, vinyl, drywall, glass, plaster, concrete, stone, and composite materials.

Product Specifications

Brand: DAP
Product Type: Elastomeric Acrylic Latex Sealant
Container Size: 10.1 oz Cartridge
Base Polymer: Siliconized Acrylic
Coverage: ~55 linear feet at a 3/16" bead
Joint Width: Up to 2 inches
Paintable: Yes (approximately 2 hours)
Application Temperature: Above 40°F
Compliance: Meets ASTM C920 Class 25 performance standards 

Installation Tips

1. Ensure surfaces are clean, dry, and free of dust or oil.

2. Cut nozzle to desired bead size.

3. Apply with a standard caulking gun.

4. Tool the bead immediately for a smooth finish.

5. Allow sealant to cure before painting if needed.

Product Details

• Brand: DAP

• Size: 10.1 oz

• Use: Interior / Exterior

• Material: Elastomeric Acrylic Latex

• Application: Caulking and sealing joints in construction and remodeling projects

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