2 m² aluminium butyl insulation mat 50 cm as a 4 metre roll ratio of insulation effect to weight is outstanding with Alubutyl insulation mats. Body sound and drone frequencies are optimally insulated. Car doors and boot flaps get a rich sound. Excellent adhesive strength (usable -60 °C to + 160 °C). Not infrequently temperatures above 100 °C are reached in the summer in the doors/trunk. The great advantage of butyl rubber to bitumen is its odour neutrality. The aluminium layer has a thermal insulating effect and helps with processing and multi-layer adhesion. Approx. 2 mm thick (1.9 mm butyl + 100 my aluminium). Surface weight: approx. 4 kg per 1 m² processing: simply cut with normal scissors or cutter. No special tools required. The thin aluminium foil can be cut, please note this when processing. Box contents: 1 x 4 m roll x 50 cm wide (2 m²).