Big Stretch Elastomeric Caulk 10.5 oz. Gray

Bring professional-grade flexibility and durability to your sealing projects with the Sashco Big Stretch Elastomeric Caulk. This water-based acrylic sealant delivers powerful adhesion and extreme stretchability, ensuring a long-lasting, crack-free seal on both interior and exterior surfaces. Ideal for windows, doors, siding, mortar joints and more, it moves with your home—so you won’t have to worry about gaps reopening or caulk splitting over time.

Formulated for easy application and cleanup, this gray caulk blends seamlessly into any surface and can be painted or stained to match your décor. Its moisture* and mold-resistant properties help protect against weather damage, while the non-toxic, low-odor composition makes it safe for use around family and pets.

Key Features

• Stretches up to 500 % of original joint size without cracking
• Seals gaps up to 2 inches wide
• Adheres to most interior and exterior building materials
• Waterproof and resistant to mold and mildew
• Paintable and stainable after 4 hours
• Cleans up effortlessly with soap and water
• Non-toxic, low odor, environmentally safe

⚠️ WARNING: This product can expose you to Ethyl acrylate known to the State of California to cause cancer and Ethylene glycol (ingested) known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.