3M SM400L sound thermal insulation engineered for vehicles. 60" wide, scrim on one side. 1 linear foot is 5 square feet. Material comes compressed from 3M. The material will expand to 1 inch. Thinsulate is FMVSS 302 certified (federal motor vehicle safety standard).
We recommend using 3M 90 Adhesive Spray to apply the white fiber side to the Van skin.
We also sell 3M SM600L which is the thickest grade engineered for vehicles
Tips for insulating: http://impact3d.com/Thinsulate_installation.html
Please call if you are in Alaska or Hawaii for shipping 541-49O-4292