PU Sandwich Panel, Aluminum/polyuerthane Sandwich Panel is a polyurethane foam board sandwiched between the layers of textured aluminum foils, with a special electric-heating process to ensure better bonding between the layers. The foam is applied using a high pressure foaming system with a comb sparyer to ensure even density and fine foam sreucture in the finished products, thus achieving uniformity in insulating property, and mechanical sreength throughout the enotire board
