Dual Mix Rigid Urethane Foam Kit - High Density Insulation Foam for DIY Projects, Home Repairs & Construction | Perfect for Sealing Gaps, Soundproofing & Crafting

OEM-recommended, SEM Products dual-mix rigid urethane foam is a two-component, urethane, expanding foam for filling pillars, posts, box sections, and areas around gas tank filler necks. This SEM Product comes in dual-mix cartridges and does a good job reinforcing weak panels. It bonds to most substrates, offers superior expansion, and cures quickly.