Rhynogrip Redline Paper Disc Indasa®

The Indasa Rhynogrip Red Line disc is a hook-and-loop abrasive disc on a paper backing, for machine sanding in bodywork and surface preparation before painting.

Specifications

• Diameters: 75, 150 and 200 mm.
• Hole patterns: plain, 6 holes, 8 holes and 15 holes depending on diameter.
• Grits: from P40 to fine grits, 60 variants in the catalogue.
• Attachment: hook-and-loop.

The number of holes decides the disc's life

On a dust-extracting disc, dust only escapes through the holes, and these must line up with those of the pad. A 15-hole disc fitted to a 6-hole pad only extracts through six points: the abrasive clogs, the surface gets scratched and the disc lasts half as long.

Before ordering, check the hole pattern of your backing pad. A universal multi-hole pad removes the constraint.

The plain version, without holes, is intended for sanding without extraction or for wet work.

Grit progression

Each pass must remove the scratches of the previous one. Skipping more than one step in the sequence means working much longer for a less even result: P80, then P120, then P180 is faster than P80 followed directly by P180.

In preparation before painting, the last grit determines what will show under the paint. Too coarse, the paint reveals the scratches instead of hiding them; too fine, it lacks adhesion.

Pressure

An abrasive that cuts does so with the weight of the machine. Pressing harder does not remove more material: it heats the resin, sticks dust between the grains and turns a new disc into a smooth one in seconds.

See also our paper-backed discs and our Indasa products.