Closed-cell foams
Physical and/or chemical polyethylene, nitrogenous polyethylene foam (Plastazote), Stratocell (Polyethylene for packaging) and EVA (Ethylvinyl Acetate)
Physical and/or chemical polyethylene, nitrogenous polyethylene foam (Plastazote), Stratocell (Polyethylene for packaging) and EVA (Ethylvinyl Acetate)