Wurth Expanding Foam Sealant – Big Gaps 3″
$4.24
It is an excellent sealer that successfully closes holes and fractures up to three inches in diameter. Since the can is waterproof, watertight, and airtight, it minimizes drafts and keeps out damp, air, and vermin. Its versatility lies in its ability to be applied to a wide range of gaps and fissures, including engineering holes, thermal insulation, and sound insulation.
