GREAT STUFF Big Gap Filler 12.0-oz Straw Indoor/Outdoor Spray Foam Insulation Canister

What Customers Are Saying

Customers overwhelmingly praise this expanding foam for reliably filling large and irregular gaps around pipes, vents, and exterior penetrations while effectively blocking air, moisture, and pests. Most find it easy to use with no special tools required, noting that a little goes a long way for multiple jobs. The primary drawbacks are messiness during application and nozzle clogging after use, which some find renders the can unusable. A few report insufficient expansion for their needs. Despite these minor issues, most customers consider it highly effective and worthwhile.