Abrasive disc
Arc Abrasives

Resin Fibre Discs are flat discs used for heavy grinding and weld removal. They are used for similar applications as Flap Discs. Resin Fibre Discs consist of a stiff fiberboard backing coated with a single layer of resin and abrasive. Arc's Resin Fibre Discs have grinding aids in both the AO and ZA products. This grinding aid helps performance and keeps the disc cooler during grinding. The discs have an arbor hole to allow them to be attached to a back-up pad which they are always used with.

Uses and Advantages
RFD's are used for heavy stock removal on electric and pneumatic angle grinders. As they are 2-dimensional and only have a single layer of grit they have a limited lifespan. Once the grit has lost its sharp edge the disc can be discarded. Unlike flap discs no new abrasive is exposed as the surface wears down.