Thinsulate SM600L has more acoustic absorption per unit weight vs. competitive products. Hydrophobic fibers resist moisture, mold and mildew. Thinsulate is FMVSS 302 certified (federal motor vehicle safety standard).
Minicell Foam Insulation for Van floors. 2 lb density. Minicell is fire retardant, UV stable, hydrophobic and offers sound deadening for your application.