UHMW (Ultra High Molecular Weight Polyethylene) Sheet, Opaque White, Standard Tolerance, ASTM D4020, D6712, D4976, 1/16" Thickness, 12" Width, 12" Length

My item measures about 1/8" thick, with a width about 2 millimeters less than 23.75", and length of about 2 millimeters more than 23.75", so if you're looking for an exact 24x24" square, look elsewhere because the item is smaller than advertised.There are parallel lines etched into the surface, running across the entire surface, as if the sheet was scraped. Perhaps the product is cast into a mold and the mold has lines scratched into it. The material itself is slick, but the etched lines cause it to have more friction than a smooth surface. I wanted a lower friction surface.Also, the sheet came with a few curves in the surface such that it didn't lay flat. I had to bend it fairly hard a few times by hand, in a few different directions to get it somewhat flat, then put weights on top of it on a table for a few days, and now it lays flat on the table without the weights.

I recently bought a new table saw, a Powermatic 64B. There is apparently no zero clearance insert made for it, so I decided to make my own. The insert is approximately 4" x 18". I used the table saw with a plywood blade to cut a blank to an approximate size, then used double-sided tape to stick the original saw insert to the UHMW sheet. Over to the band saw to cut off the corners, and then to the router table, where a pattern-cutting bit made short work of "final" shaping. Next the drill press made a finger hole. The result was a table saw insert that wouldn't fit as it was too large by a small fraction of an inch. I used a "surform" rasp to adjust the size until it just fit. Next, using a lot of safety precautions, I cut the kerf slot by raising the saw blade through it. Finally, a hand saw extended the kerf slit for the riving knife (if anyone knows a better way to do that, I'd like to hear it).The reason I went through that long storybwas that every one if these processes went smoothly and easily. This UHMW stuff is really easy to work with. The chips/sawdust are fairly large and get static electricity, so they cling to everything, making cleanup a bit tedious. On the "surform" step above, I tried to use a plane - unsuccessfully. For my saw, the sheet is slightly too thin, so I'm going to have to put some leveling screws in it. But I found the process of working with this stuff a lot if fun.

Not impressed. The material arrived with a horrible warp and twist. With a thickness of 3/8, the warp at least doubles the height when it should be lying flat. This wouldn't straighten out clamped between two boards, it's not safe to cut on a table saw, and it's useless for making miter slot runners. I'm returning it

This worked well for a spacer on a job I was doing. However the piece I received was actually about 11.75 inches square, not 12 inches.

Plastic sheet - used for workbench cover. Cuts clean will not crack when cutting at temps above freezing - did not get hot and produce fumes when cut - beveled the edges with a small plane w/o any issues - can take a lot of abuse - so far has not taken a stain from oil, dirt, grease, cleaners, solvents - would recommend..

The UHMV itself is fine. However, I ordered a 12" x 12" x 1/16" thick piece and the UHMV I received was 3/32" thick. Not a big problem in that I made the wooden piece the UHMV was to be mounted on 1/32" thinner to accommodate the extra thickness. If you don't have some flexibility in the thickness you order, you'd better check its thickness before you commit yourself to using it.

BEWARE: Product length was less that 12" by 3/16" along both sides, i.e. it was 11 and 13/16" instead of 12", meaning they DID NOT provide the product of necessary size that I paid for. If you need to trim down to an exact fit you will not be able to since it is already too small. The width tolerance is 3/16" - but apparently doubly against the customer's favor, in this case. This may be a tactic to force the customer to by the longer material. If you wanted a true 12" by 12" you would need to buy the 24"x24" to accomplish that and cut it yourself. The seller SHOULD ACCOMMODATE THE THICKNESS OF THE CUTTING BLADE WHEN CUTTING MATERIAL TO PROCLAIMED LENGTH - one of the first lessons in shop 101. That said the thickness was 3/16" as expected - the only reason it gets two stars instead of one..I would be very hesitant buying from this seller since you have to expect that the amount of material you will get is less than expected ruining the expected full use of the product. Honestly, I would not buy from this seller again.

Package was excessive with too little paper fill.

I own a very old boat. The main sliding access door is built of wood. Over the years the frame and door have become worn and the door was very difficult to operate. I cut strips of this material and attached to the bottom of the door. Slides like new now. Very pleased with the results and would recommend.

As described by another reviewer, the piece was warped, so if you're not cutting it down and need it to be flat, you've been warned.

Excellent product as advertised