Dear Kris, Thank you for your inquiry. great Stuff products would not be recommended for use inside a pipe or other enclosed spaces nor will they be effective in prevention of rust. Regards, DuPont Contact Center
GREAT STUFF(TM) Big Gap Filler is frequently used to air seal around pipe penetrations in a wall, including gas lines, hot water lines, and dryer vents, without any issues. This product is flammable during dispensing. Do not smoke or use near open flame. Shut off pilot lights and sources of ignition until tack free.
When cured, the maximum use temperature of this product is 240°F, at which point the material is combustible. You may need to use a thermometer to check the temperature of the area in which you plan to apply the material. If you do decide to use GREAT STUFF(TM), please be sure that all pilot lights and other sources of ignition are turned off or disabled during the application, as well as during the approximately 8-hour cure time.
5 second Google search = http://greatstuff.dow.com/product/big-gap-filler.htm
Hi outinthecold, GREAT STUFF™ is not to be used for filling closed cavities or voids such as behind walls and under tub surrounds; this improper use of the product could result in the accumulation of flammable vapors and/or uncured material. Failure to follow the warnings and instructions provided with the product, and/or all applicable rules and regulations, can result in injury or death.
Dear Linda: It sounds like you (unfortunately) discovered just how sticky Great Stuff is! This is great for sealing surfaces, but not for your carpet, hair, hands or anything else. No standard solvent will dissolve or soften Great Stuff. The only option is to carefully scrape any large pieces off your carpet. After it fully cures, the foam becomes brittle -- so let the rest sit for a few days to make sure it is completely cured, then try a brush and a little water. I hope this is helpful. Mark
Yes but consider insulated boards/sheets, foil faced
YES this is open cell foam not designed to carry weight Shop for no flat tires with a weight capacity rated instead
Google will help you in the future ala http://greatstuff.dow.com/projects/pipe-penetration.htm but even though they SAY OK, they don't post temperature tolerances to find found easily - I gave up and remembered some other products designed to be fire blocks = might be a better choice if they sport max. temperatures tolerated
GREAT STUFF™ Insulating Foam Sealants are one-component foams that use moisture and 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 unless it is put down in layers and each layer is allowed 8 hours to cure before the next layer is applied. Once cured, this product can be sanded and painted.