... freezing, anti-moisture, noise-resistant and heat insulation. Polyurethane Foam 1, factory direct sell, professional manufacturer2, soft, good ... to “blow holes” due to the foaming process.Polyester Foam - Mainly of improved physical properties, and controlled cell ... ASTM C 411Fungi Resistance After 28 day incubation - no fungal growth exhibited ASTM C1338 ( function(){ var aBigImageSrc = [ 'http ...