Pool and Asphalt Insulation Films are produced from a combination of LDPE, HDPE and other necessary additives. This product is manufactured in high thickness and typically in black color. This film is used as a protection layer to prevent soil salts (generally found in saline soil) from penetrating into asphalt pavement. The other application is retention of water, including the lining of swimming pools, reservoirs, basins, surface impoundments, garden ponds and artificial streams in parks and gardens.