LINING SYSTEMDirect Bonding SystemDirect Bonding system (W611.id) uses 1 layer of Knauf plasterboard. Plasterboard is installed using bonding compound which allows the gypsum board to be installed with minimum material requirements.YOU MIGHT ALSO BE INTERESTED IN:StandardshieldK-BondPlasters×Fill in your details and our team will contact you as soon as possible. Full Name * Phone Number * Email Inquiries * : Submit