Car Builders Acoustic Liner Sheets Car Builders Acoustic Liner is a multi-layer open and closed cell foam with a peel and stick backing. It offers a high level of acoustic and thermal insulation superior to that of traditional jute underlay. Car Builders Acoustic Liner is today's answer to predated jute and cotton mill scrap traditionally used under carpets. Acoustic Liner will not rot, attract mould, is easy to cut and does not require the application of glue (unless it is being laid in an inverted position). Behind the trim panels, carpet and boot mats on your classic vehicle lay the benefits of using the range of car builder products from Repco. Products such as sound deadener, waterproof underlay and wiring loom tape enable you to minimise drumming, noise, and heat transfer to provide a comfortable and insulated ride. Tested and backed by industry professionals make the Repco range of quality Car Builder products your first choice when it comes to heat and sound insulation. Don't let the drone of road noise overtake the sweet sounds of your V8 or hot 6 when using the right insulating products from Repco.