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Flatline Barriers offers sound dampening and heat barrier insulation for popular GM, Ford, and Mopar cars and trucks from the 1960s to the 1980s, as well as universal fitment options. Flatline Barriers is an insulation that outperforms the competition and is easy to install. The peel and stick style insulator offers superior protection against sound and heat penetration inside the vehicle. From bulk sheets to die-cut, vehicle specific kits, Flatline Barriers has you covered and protected. RPUI is proud to have Flatline Barriers in our family of brands and we are thrilled to offer Flatline Barriers for your classic project.