Best Rectorseal Industrial Sealants in 2026

THE GAP AND CRACK ATTACKER! Reduce drafts and save energy

Comes with NEW SMART DISPENSER Straw

No drips, less mess - foam stops where you stop

Seal the pipe, cable and duct penetrations, minimizing airflow

During a fire, flames, harmful gasses, and toxic smoke cannot spread as quickly

Conserves energy, reduces drafts, allowing you to save on heating & cooling costs

For Use with any of the Great Stuff Pro Series foam dispensing guns (sold separately)

Great Stuff Pro pest block insulating foam sealant blocks insects and pests from entering the home by sealing gaps, cracks, and holes where they commonly enter

It expands to fill, seal, and insulate gaps up to 1 in (25 mm), forming a long-lasting, airtight, and water-resistant barrier

Forms a permanent weather-tight seal to minimize drafts and insect infestation

Exceptional adhesion to building materials

Interior or exterior use

Easy application for gaps up to 1 in. To reduce drafts

Expands to fill the shape of cracks and voids for airtight bond

Air sealing and insulating saves up to 20 percent on home energy costs

IMPEDES SPREAD OF FIRE. This ready-to-use, minimal-expansion insulating gap filler expands up to 1" inch to seal service penetrations and provide an airtight barrier that impedes the spread of smoke and flames.

CODE–APPROVED ORANGE. This distinctly orange spray foam makes for easy identification for inspection.

STRAW-APPLIED. Save time on your projects with this simple to use spray foam — the straw applicator makes any project a breeze and helps you deliver the right amount of insulating foam even in hard to reach spaces.