3M Lapping Film 0.3 Micron (White) AO (PSA)

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3M™ Lapping Film 0.3 Micron (White) AO (PSA)

The scary sharpening technique has evolved somewhat with the advent of modern film-backed superabrasives, more commonly referred to as lapping film, which significantly outperform and outlast ordinary wet and dry.

Scary sharpening with 3M lapping film and microfinishing film applied to float glass offers a clean, fast, consistent and cost effective way for novice or hobby woodworkers to achieve professional results without the initial outlay for a full set of sharpening stones.

Workshop Heaven supply various grades of 3M PSA backed lapping film sheets that have been carefully selected for use with the scary sharpening method offering efficiency, ease of use and long service life.

Originally developed for polishing fibre optics, 3M lapping film is fast cutting abrasive system that provides precise, consistently uniform, close-tolerance finishes.

A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriented for greater cutting efficiency. The particles are bonded into a layer of resin that wears away slowly for increased durability. PSA is the acronym for Pressure Sensitive Adhesive and is a heavy duty version of the adhesive on the back of a Post-It note.

To use, cut each sheet into the desired width, peel the backing and fix a strip of each grade next to each other on a piece of float glass or other perfectly flat substrate applying firm pressure for an even secure bond.

Scary sharpening is a less expensive option than waterstones in the short term, ideal for the occasional woodworker, or a handy way to temporarily fill the gaps as you build up your waterstone collection. Lapping film can be lubricated used with water, oil or paraffin. If using a combination of stones and film though we recommend using water as a lubricant for the lapping film to avoid contaminating your waterstones.

Sheet size: 8-1/2" x 11" (216mm x 279mm)
Grade: 0.3 micron
Mineral: Aluminium Oxide

Customer Reviews

Written by: Guest
You can see the extra polish it gives
Following a 6000 grit waterstone, a final few strokes on this film shows immediately. There's a lot of use to be had from one sheet, especially if it's only used for tricky woods, so great value too.
Written by: K
.03 micron lapping film.
Scary sharp is the way to go. Always flat and with the 3M films you can achieve an astonishingly fine mirror edge. I'm sticking with this method, you won't be disappointed.
Written by: Chris
Perfect Results every time.
I got this Lapping Film to sharpen two very old planes I got from a friend who's Granddad had them. The blades were shocking but after first doing a basic sharpen on a wet stone, these lapping film sharpened up the blades to razor sharp. Great value as I have made three lapping sheets out of the 1
Written by: G Hope
Great sharpening system
These sheets in different grade makeup an excellent sharpening system at a fraction of the cost of water stones. Great mirror finish to knives giving very clean cuts for sushi etc.
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