Made from a rubber material. Has hook on back and loop on front.
Interface pads are placed between the backing plate and sanding disc for multiple reasons. They increase the flexibility of a disc and help to evenly distribute machine movements and applied pressures. They will also help your backing pad to last longer.
BLACK – Firm. Use for coarse sanding.
WHITE – Soft. Use for fine or finish sanding.
GREY – Very Soft. Use when sanding contours (bowls).