Above ground, Platon Plaster Plugs can be used internally and externally to secure our range of Damp Proofing Membranes to the wall. Use an 8mm SDS Drill Bit to drill through membrane and substrate prior to hammering home fixing plug. Use either Newton® 801-M Mastic Sealant, Platon Sealing Rope or Platon Plaster Plug Seals to create a damp proof seal around the Fixing Head, it serves to stop any ‘bridge’ happening between the damp or stained surface and the new surface. Available in 50mm or 70mm Lengths. Supplied in Boxes of 40, 80, 100, 120, 160, 250, 320 or 500 Fixings.