Bubble Foil Insulation 1AL+Bubble+AL 2No toxicity,moisture barrier,anti-radiation 3Used in roof, ... 11 years experience Aluminum consists of one layer of polyethylene bubble that are laminated between two layers of aluminum. Product characteristic ... (available in custom spec.)Thickness: 3~5mm(single bubble)Bubble diameter: 9mm, 10mm, 20mmWeight: double bubble :230g/,250g/,280g/, 300g/,etc (available in ...