Weight (Steel 1.5 mm): 9.7 kg/m²
Weight (Steel 2 mm): 12.9 kg/m²
Weight (Steel 3 mm): 19.3 kg/m²
Weight (Aluminium 1.5 mm): 3.3 kg/m²
Weight (Aluminium 2 mm): 4.4 kg/m²
Weight (Aluminium 3 mm): 6.6 kg/m²
Thickness: 18 mm
Head-on transparency: 24%
Maximum transparency: 62%