Working closely with British Aerospace, Holscot developed a membrane which would exactly fit the contours of the wall and floor areas of the toilet and galley areas. A patchwork was constructed using FEP formings taken from 0.25mm thick FEP pieces together with plain 0.25mm FEP sheet all welded together using Holscot’s own unique welding capabilities and the finished membrane was chemically etched. British Aerospace staff then expertly fitted the FEP membrane to the modular units using a combination of heat and adhesive. The result was an outer of corrosion resistant, non-porous FEP which fitted snugly to the modular units and sealed that area completely. The same concept was used by Holscot on a project to seal the toilet areas of the RAF’s fleet of VC10 aircraft.