3M PART

Our 3M™ Stikit™ red abrasive disc 316U is an economical disc that delivers reliable performance. It features aluminum oxide mineral abrasive on A weight or durable D weight paper backing depending on grade. These discs are ideal for standard jobs such as filler shaping, featheredging, paint prep and finish. Our 3M™ Stikit™ attachment makes disc change outs fast and easy. The 3M™ Stikit™ red abrasive disc 316U delivers reliable performance on collision repair substrates, yet remains an economical choice for collision repair operations. Choose aluminum oxide mineral abrasive in grades up to P800 for most body and paint sanding applications. Red Abrasive Discs are available with D weight paper backing in 40 to P80 grade abrasives for aggressive shaping of plastic filler or paint removal around damaged areas.
3M Stikit PSA disc has a diameter of 6 in. This item is on a paper backing, A weight.
Specification parameters description:
Backing Weight:
Paper and cloth have a lettering scale for backing weight that measures strength of the material onto which the abrasive is mounted. Paper uses the letters A-F, where A is a lighter weight and most flexible and F represents a rigid, heavier backing. Lighter backings are typically paired with finer abrasive grits, suitable for blending and finishing. Coarser grits used for deburring and stock removal rely on a heavier backing. Cloth uses a lettering system of J, X, and Y for backing weight. J weight (jeans) is the lightest and most flexible, X weight (drills) is more durable and recommended for medium duty work, and Y weight is the toughest and least flexible. Fiber backings are made from chemically-impregnated paper to form a very hard, strong backing material. Fiber is used primarily for sanding discs. Polyester film backing provides high strength with a very thin backing and is used for very fine grits. It is more tear resistant than paper backing and is also waterproof.
Grit: