If the foam has not cured or hardened, use acetone or fingernail polish remover (with acetone). There is no solvent that will remove cured polyurethane foam. Remove as much as possible with a dull scraper or a hacksaw blade, and then scrub the remaining film with a non-abrasive cleaner. If that does not work, gradually move up to more aggressive means including sanding, sandblasting and repainting.
Warning: When using acetone on surfaces such as sidings, always test a hidden section of the surface to make sure that the acetone does not discolor the surface.
The yield of a can of GREAT STUFF™ is measured in lineal feet of a 3/8"- 1/2" diameter bead. One 12 oz. can of GREAT STUFF™ has about 250 lineal feet. One 16 oz. can has about 335 feet. One 20 oz. can has about 420 feet. A single 12 oz can of GREAT STUFF™ equals up to 19 tubes of caulk.
GREAT STUFF™ sealants use moisture in the air to cure. They are designed to fill small cracks and gaps. The foam does not cure properly if it is used to fill large voids. Do not use GREAT STUFF™ to fill enclosed voids, such as behind drywall or under tub surrounds. However, GREAT STUFF™ is great to air seal the cavities before drywall is applied.
The GREAT STUFF™ foam straw will seal itself shut if left sitting for more than two hours after its last use. Inserting a pipe cleaner sprayed with oil lubricant into the applicator straw may prolong the life of the product. But it's better to plan ahead, identify and list all possible applications before using the can. The Air-Seal Audit Checklist can help.
GREAT STUFF™ Gaps & Cracks and GREAT STUFF™ Big Gap Filler are both cream colored. GREAT STUFF™ Window & Door is yellow. GREAT STUFF™ Fireblock is orange. GREAT STUFF™ Pond & Stone is black. All may be painted after they are fully cured.
Mice, raccoons and large pests, if determined enough, can chew though many materials, including GREAT STUFF™. When a barrier is needed for large pests, it is recommended a wire mesh be installed and GREAT STUFF™ applied generously on both sides of the mesh. For small insects and bugs, GREAT STUFF™ alone typically serves as an effective barrier.
You can purchase GREAT STUFF™ at most local discount retailers or anywhere home improvement products are sold. Check our Where to Buy page for U.S. and Canada locations.
There are four key differences between GREAT STUFF™ and GREAT STUFF PRO™ products:
1. GREAT STUFF™ uses a single-use straw dispenser; GREAT STUFF PRO™ can be used with a gun tool applicator or reusable straw to dispense foam. GREAT STUFF PRO™ is perfect for those using GREAT STUFF™ products on a regular basis.
2. Size of cans. GREAT STUFF PRO™ is 24 oz. while GREAT STUFF™ is 12 oz. or 16 oz. in most cases.
3. Temperature dispensing range.
4. GREAT STUFF™ Gaps & Cracks is cream colored.
1. Prevent skin and eye contact by wearing long sleeves, gloves and protective eyewear.
2. Protect the area near application with a drop cloth or newspaper.
3. Practice dispensing foam on newspaper before beginning your application.
4. Do not apply foam while smoking or near an open flame. Foam is flammable until cured.
GREAT STUFF™ is tack-free within 5-10 minutes and cures fully in eight hours. The higher the humidity, the faster the foam will cure. Misting a layer of water on the surface prior to dispensing the foam will speed up the curing process.
Yes. All GREAT STUFF™ consumer products have an 18 month shelf life. GREAT STUFF PRO™ has a 12 month shelf life, except GREAT STUFF PRO™ Window & Door, which is 18 months. There is an expiration date printed on the bottom of each GREAT STUFF™ can. If you attempt to use a can after the expiration date and the product will not dispense, dispose of the can. Do not try to activate the can by pushing hard on the dispenser or puncturing the valve. These actions will likely result in an uncontrollable venting of the product that is very difficult to clean up.
Learn where to look for air leaks and how to permanently seal them by downloading this helpful Air-Seal Audit Download checklist now