Easy-Going Foam. TriggerFoam Pro Window & Door Foam will not disfigure window and door frames when it expands, says the maker. Designed to be applied with a standard foam gun, the low-pressure polyurethane foam sealant contains no CFCs, PCBs, or urea formaldehyde and adheres to wood, metal, masonry and concrete, the company says. A 29-ounce can costs $15. Powers Fasteners, 914/ 235-6300, powers.com.
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