Adheres to almost any surface or material including to fiberglass - Ideal for firewalls, under-vehicle, floor pans, under hoods and more Withstands up to 1750°F and blocks radiant heat from entering driver compartment Serves as a barrier to unwanted road, tire, and engine noise Constructed from 10 mil aluminum bonded to finely woven layer of high temperature resistant glass fiber blend Easy to form to shapes and contours with minimum clearance required Fit type: Universal Fit