Self-adhesive foam sheet. 2mm thick, 300mm x 200mm. Used for backing silicon carbide or diamond discs on the Ray Foster dry sanding machine. Use the 2mm thick foam for a firmer pressure (initial sanding or larger stones) and then use the 4mm thick foam for a softer pressure (final sanding and smaller stones).
Use a punch to cut your own foam backing discs. The self-adhesive backing sticks on to the mounted silicone disc. Use super glue to attach your sandpaper or diamond discs.
