Liner 157 mil (4 mm) 36 sqft Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener

Liner is a high density closed cell foam that serves as an efficient heat and vibration absorber. Closed cell foam is an effective material for reducing noise reverberations and the Liner is moisture resistant retardant and dust free. Our heat blocking foam rolls are pliable and easy to work with and they install in minutes. The high density closed cell foam is perfect for firewall doors roof trunk and floor. Liner is the most effective automotive thermal insulator available online and perfect to use on top of Sound Deadening Mat. It is a soft self adhesive closed cell foam with many thousands of cells packed extremely close together which gives the material near zero air infiltration. This is the key to its ability to reduce heat as well as resist and water. Since it will not hold water it will not promote rust like most under carpet padding and thermal insulators. Liner is also durable enough to be crush and tear resistant. Because of its durability and ability to resist and water Liner is long lasting. Liner has the highest heat blocking properties available in a single layer synthetic foam. Combined with Sound Deadening Mat its nearly doubles the total thermal resistance ability. It provides excellent insulation for the roof firewall floor quarter panels doors and even under the hood.