Yes, B6 Akustik produces 2 specially developed products, which are approved according to ISO 4589-3, as well as fire-retardant; see US standard FMVSS-302 (both approved by Det Norske Veritas ISO 9094-1 and ISO 9094). Type 1 - B6 ISOFLOC: Regenerated granular foam 100 kg/m3, fire retardant and with a strong aluminium foil and strong adhesive. Type 2 - B6 ISOBOAT: Fire-retardant PU foam material with a heavy foil in the middle and aluminium foil on top.