ALINO 5.4 ft. x 4 ft. (48 in. x 64 in.) DuraLite Honeycomb Waterproof 1/2 in. Thick Folding Tile Backer Board

ALINO-Board made of PP (polypropylene) honeycomb at the core. It's sandwiched between two non-woven reinforcement polyester skin barriers for better bonding and waterproof/moisture resistance, and fleece webbing for effective anchoring in thin-set mortar. ALINO-Board is a tough, lightweight and ductile polypropylene material that provides efficient and optimum mechanical performance in composite sandwich structures. ALINO Board is an excellent alternative to traditional wall at shower, sauna, and any wet area where waterproofing and vapor barrier is absolute necessary to protect your home from mold and mildew.