ProPink ComfortSeal Sill Gasket, 5-1/2" x 50'

Polyethylene foam sill gasket designed to seal gaps between the foundation and sill plate in new or retrofit builds. Delivers resilient air and moisture sealing performance with a thin, easy-to-handle profile.

Key Features:

• Reliable Air/Water Seal: Polyethylene foam compresses to fill irregularities between sill plate and foundation
• Code-Friendly Safety: Class A Fire Rated and GREENGUARD Certified for low chemical emissions
• Easy to Work With: Lightweight roll format installs quickly along plates and walls
• Sized for Coverage: 5-1/2 in. width, 50 ft length ideal for standard framing layouts
• Durable Performance: 3/16 in. thickness maintains a consistent gasket under load

Please check the Product Data Sheet Here

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What is the material?
A: It is a polyethylene foam gasket designed for resilient sealing.

Q: Where is it typically installed?
A: Between the foundation and the sill plate to reduce air and moisture infiltration.

Q: Is it safe for indoor environments?
A: Yes, it is GREENGUARD Certified for low emissions and is Class A Fire Rated.

Q: What are the roll dimensions?
A: 5-1/2 inches wide by 50 feet long, approximately 3/16 inch thick.

Q: Do I need special tools to install it?
A: No special tools are required—cut to length and place under the sill plate before fastening.

A Sleek, Airtight Foundation Finish

This slim, blush-pink gasket delivers a crisp, tailored seal at the very base of your build, elevating performance with subtle finesse. I love how its 3/16-inch foam profile disappears while blocking drafts and moisture. Run it continuously beneath plates for a clean, optimized envelope—then let the architecture sing. It’s a quiet luxury that makes every space feel composed, comfortable, and impeccably crafted.

Seal your foundation right the first time—add ProPink ComfortSeal to your cart and lock in lasting comfort and efficiency.