DAP Alex Flex Caulk 10.1 oz. White

Transform your molding and trim projects into professional-quality finishes with DAP Alex Flex Caulk. This premium acrylic latex sealant delivers exceptional flexibility and adhesion for interior gaps around windows, doors, baseboards, chair rails, crown molding and more. Its low-odor, water-cleanable formula won’t yellow or shine through paint, and it forms a tough, paintable skin in just 30 minutes—helping you finish jobs faster without compromising durability.

Whether you’re a DIY enthusiast or a pro contractor, Alex Flex stands up to cracking, resists mold and mildew, and meets ASTM C920 Class 12.5 for long-lasting performance. Smooth tooling and outstanding paintability ensure every seam blends seamlessly into your décor.

Key Features

• Superior adhesion to wood, PVC, polystyrene, MDF, composite and other common trim materials
• Forms a paintable skin in 30 minutes; compatible with latex and oil-based paints
• Flexible seal resists cracking, shrinking and physical stress
• Mold* and mildew-resistant formula for indoor applications
• Low odor and easy soap-and-water cleanup

⚠️ 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.