The R-Bond Zirconia Fibre Disc is a resin‑bonded abrasive disc constructed with zirconia‑alumina grains on a fibre backing, designed primarily for heavy stock removal, weld blending and surface preparation with an angle grinder and suitable backing pad. It is intended for use where a fast cut rate and long service life are required on ferrous metals and stainless steels, offering aggressive material removal while maintaining consistent finish control.

Technically, the disc uses high-performance zirconia‑alumina abrasive grain combined with a thermosetting resin bond and a reinforced fibre backing to deliver strength and tear resistance. Grits are manufactured to FEPA (P‑scale) grading and are available across a broad range (coarse to fine). The product is produced under an ISO 9001 quality system and meets the safety requirements of EN 12413 for bonded abrasive products. The discs are supplied for use on backed sanding systems rather than threaded attachments; they fit standard angle grinder backing pads (use the correct pad and any necessary arbor adaptor for your machine).

Typical applications include heavy deburring, weld removal, edge chamfering, profile blending and rapid surface levelling in fabrication shops, automotive repair, structural steelwork, shipbuilding, rail maintenance and general engineering. The disc is particularly effective for carbon steel and stainless steel where robust cutting action is needed before finer finishing operations.

Key benefits of the R‑Bond Zirconia Fibre Disc include increased cutting speed and a longer useful life compared with conventional alumina abrasives due to the self‑sharpening behaviour of zirconia grains. The resin bond and fibre backing provide good resistance to loading and heat build‑up, reducing glazing and allowing sustained performance under abrasive loads. The discs are compatible with most standard angle grinder/backing pad combinations and, when used correctly, offer controlled removal without excessive workpiece discolouration. As a bonded abrasive they are rated for safe use within the EN 12413 framework, ensuring mechanical integrity at rated speeds.

Duchy Fasteners stocks the R‑Bond Zirconia Fibre Disc in common diameters (115 mm, 125 mm, 178 mm and 230 mm), a range of FEPA grit sizes (from coarse P36 to finer P240) and pack options including single pieces and multipacks (10s and 25s) for workshop convenience. If you need a specific size or grit, contact our team for availability.