Sanding discs are made of white fused aluminium oxide with a sharp, durable grain that offers a higher removal rate and longer service life than normal aluminium oxide. Quality pro-flex paper base for extreme durability and tear resistance due to its tight spun-lacing. Open-pore, reinforced fleece layer that perfectly absorbs sanding dust, creates an even sanding result and perfectly aheres to the driving disc. Suitable for paint, varnish, joint filler, plaster, screed, wood and plastic.