Back Sandpaper With Duct Tape to Sand Curves Without Tearing

The Problem

Sanding a curve — a bowl rim, a rounded edge, a carved hollow — means pulling a strip of sandpaper around the shape shoeshine-style. Plain paper-backed sheets can't take that: they crease, crack along the crease, and tear apart mid-stroke. Cloth-backed abrasive made for contour work solves it, but it costs several times what ordinary sheets do.

The Technique

1. Lay a regular sandpaper sheet grit-down and cover the paper back with duct tape.
2. Cut the taped sheet into strips sized for the work — scissors handle it fine.
3. Sand your curves. The tape backing carries the tension, so the strip flexes around contours without the paper separating or ripping.

That's it — the tape turns throwaway sheets into flexible, tear-resistant strips for pennies.