Cut edge corrosion occurs where the existing plastisol coatings on mid-laps, end-laps, ridge joints and parapet capping flashing peel away, exposing the metal cut edges underneath, which then rusts due to weathering. At Coverclad Services, we treat cut edge corrosion by first removing any loose plastisol and rust using abrasive brushes (effectively taking back to bare metal). We then apply the Giromax Seamsil® in a three stage process. Stage one is to gun apply sealant to bridge gaps where required. Stage two is to brush apply the base coat. Finally stage three is to brush apply the top coats. Each application is left to cure and special thinners are used where necessary depending on current climate conditions. Specialist Giromax Seamsil products are also used for treating certain hook bolts and for local encapsulation on asbestos sheets.