Gangying Hook-and-Loop Sanding Disc

The Gangying Hook-and-Loop Sanding Disc is our lead export line. The electrostatic coating process stands every grain upright, giving stronger cutting power and a uniform scratch pattern, while the calcined brown aluminum-oxide grain resists shedding and wears slowly.

The velour backing locks cleanly onto matching pads and releases without tearing, so discs can be swapped fast on production lines - no adhesive residue, no half-worn discs thrown away because they wouldn’t re-stick. Often listed as velcro-backed or flocked sanding discs, they run wet or dry on metal and non-metal surfaces alike.

Choosing the right grit (P40-P1000)

One backing system covers the whole refinishing sequence:

• P40-P80 - heavy stock removal: stripping rust, old paint and mill scale, knocking down weld seams.
• P100-P180 - shaping and levelling after the coarse cut, first sanding on bare wood.
• P240-P400 - surface preparation before primer or sealer, sanding between coats.
• P600-P1000 - fine finishing where a shallow, uniform scratch pattern matters before polishing or topcoat.

A typical job steps up through the grits without skipping more than one grade at a time, so most buyers stock a spread rather than a single grade. Mixed-grit orders across the range are routine for us.

Four sizes for the common machines

Discs come in 4, 5, 7 and 9 in diameters (100 / 125 / 180 / 230 mm), matching the standard hook-and-loop backup pads on random-orbital sanders, angle grinders and rotary polishers. The 5 in / 125 mm disc is the workhorse format for orbital sanders in furniture and body shops; 7 and 9 in suit angle grinders and large-area work such as yacht hulls.

Why calcined grain and electrostatic coating

Calcined brown aluminum oxide is heat-treated for toughness, so the grain fractures less under load and the disc keeps cutting instead of glazing over. Electrostatic coating plants each grain point-up and spaces it evenly across the disc face - the practical result is a faster cut at the same pressure and a scratch pattern consistent enough to follow with the next grit straight away.

Applications

• Furniture and woodworking - bare-wood sanding, sealer flatting and finish prep on flat and profiled parts.
• Automotive and yacht refinishing - paint and gelcoat sanding on curved panels, where the flexible backing follows the surface.
• Rust and paint removal - coarse grits clear corrosion and old coatings without tearing off the pad.
• Weld seam grinding - levelling seams and blending the surrounding metal in one grit sequence.

Packaging and ordering

Discs are packed 100 per box. The reference prices shown above cover the common 4 in and 5 in sizes; for 7 in and 9 in, specific grit assortments or a detailed quotation, send an inquiry with your sizes and quantities - we quote factory-direct from Foshan.