The Dow GREAT STUFF PRO™ Window and Door Insulating Foam Sealant is built to fill and seal gaps around window and door rough openings without distorting their frames.

Build

The gunnable canisters only work with gun dispensers! Use any of the GREAT STUFF PRO Dispensing Guns to direct the foam into the gaps and cracks you want to fill.

Or dispense in any direction by using the provided straw (straw version only) that will help to direct the foam into the gaps and cracks you want to fill.

This foam gently and minimally expands to take on the shape of the door or window jamb to create a water-resistant, weathertight, and airtight seal.

The product is trimmable after 60 minutes with a serrated blade or it can be pushed back into the gaps. It can also be sanded, stained, or painted.

The surface of this foam can discolor when exposed to sunlight so it is recommended to paint it if this makes a difference to the appearance of the final finished project.

One 20 oz can = 16 - 18 common-sized windows!

(36" x 60", 3/8" wide gap @ 1" deep)

Safety

Wear eye protection, gloves and protect the area from the excess product.

Uncured foam can be cleaned with acetone or GREAT STUFF PRO Gun Cleaner for best results!

Cured foam on hands or surfaces must be removed mechanically or allowed to wear off.

Keep ignition sources away from this foam and use them in well-ventilated areas.

How to Use - Straw Version

• Shake can vigorously for at least 60 seconds - making sure shaker ball also moves for 60 seconds
• Screw straw assembly onto the valve
• Dispense slowly, this product expands!
• Mist with water to speed up curing time
• Dries yellow colored and cures flexible
• Not suitable for being dispensed in cold temperatures

How to Use - Gunnable Version

• Shake can vigorously for at least 60 seconds - making sure shaker ball also moves for 60 seconds
• Invert can and screw onto the gun adapter
• Adjust flow control to open position and immediately squeeze the trigger to fill the gun barrel with foam
• Dispense a small amount of foam into a waste bin or bag to fully prime gun
• Keep can in inverted position when in use
• Mist with water to speed up curing time
• Dries yellow colored and cures flexible
• Not suitable for being dispensed in cold temperatures
• When flow control is fully closed, the canister can stay on the gun and can be reused within 30 days. Simply shake vigorously and reopen flow control to reuse.

How to Change Cans - Gunnable Version

• Always leave a can on the gun unless it has been thoroughly cleaned with the GREAT STUFF PRO Gun Cleaner
• Shake new can for one minute
• Unscrew old can, immediately screw on a new can
• Dispense a small amount of foam into a waste bin or bag to fully prime gun

Technical Data

(Cure rate is based on 70 ± 5°F and 50 ± 5% RH, 1-inch bead diameter, 6-inch length. Cure times depend entirely on temperature, size of foam bead, and humidity.)

Certifications, Standards, and Regulations

• UL Classified
• CCMC 13074-L
• CAN/ULC S710.1
• ASTM E21 12
• AAMA 812-04