Niedax SDB300 SDB 300 halogen-free B1 15 pcs sound insulation blocks

Sound insulation blocks, flame-retardant according to DIN 4102, building material class B1, asbestos and mineral fiber-free, for airborne sound insulation in wall openings, in order to avoid structure-borne sound transmission, the ducts must be mounted at a distance, the potential equalization is carried out via the potential equalization cables GSL 150 or GSLH..., halogen-free. The sound insulation blocks must not be used as fire barriers! for channel bases: GKU... DKU... GAU... DAU... PGU... PLU... LLK... LUK... LUE... LI... Dimensions (approx. dimensions) H x W x L: 40 x 60 x 300 mm Material: PET (polyethylene terephthalate) Only available in boxes of 15