Q: Will this material warp or absorb moisture over time?
No, it's impervious to moisture, so it won't swell or warp the way some plastics do.
46J9014 - 3/4" UHMW - 4" x 24"
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UHMW polyethylene is the material you find in most factory-made jigs. The letters stand for “ultra-high molecular weight,” a type of plastic that is dense, tough, rigid, impervious to moisture and, most important, has a very low coefficient of friction. Jig bases made from it slide easily on machine tables.
We offer it in a range of sizes so that you can use it for making fences, jigsaw sub-tables, etc., as well as jig bases.
One of the most useful strips is the 3/4" × 3/8" × 48", sized to fit in table slots. The width is cut to close tolerances so that it fits well in a 3/4" slot and completely avoids the annoying galling that you get with many slot runners. It machines much like wood. It can be drilled, tapped, routed or cut with a saw blade. It even makes good bearings for low rpm use.
Made in USA.
No, it's impervious to moisture, so it won't swell or warp the way some plastics do.
Yes, it machines much like wood and can be drilled, tapped, routed or cut with a saw blade.
The 3/4" × 3/8" × 48" strip is cut to close tolerances specifically to fit a 3/4" slot without binding.
It's the material behind most factory-made jigs, since its low friction lets jig bases and fences slide smoothly across machine tables.
| Materials | UHMW polyethylene |
| Dimensions | 3/4" × 3/8" × 48"; 3/4" × 3/8" × 24"; 4" × 24" in 1/4", 3/8", 1/2" or 3/4" thickness |
| Compatibility | Fits 3/4" T-slots (3/4" × 3/8" × 48" strip) |
| Includes | UHMW polyethylene strip |
| Package Quantity | 1 item |
| Country of Origin | USA |
| Warranty | Lee Valley Satisfaction Guarantee |
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UHMW Polyethylene
UHMW polyethylene is the material you find in most factory-made jigs. The letters stand for “ultra-high molecular weight,” a type of plastic that is dense, tough, rigid, impervious to moisture and, most important, has a very low coefficient of friction. Jig bases made from it slide easily on machine tables.
We offer it in a range of sizes so that you can use it for making fences, jigsaw sub-tables, etc., as well as jig bases.
One of the most useful strips is the 3/4" × 3/8" × 48", sized to fit in table slots. The width is cut to close tolerances so that it fits well in a 3/4" slot and completely avoids the annoying galling that you get with many slot runners. It machines much like wood. It can be drilled, tapped, routed or cut with a saw blade. It even makes good bearings for low rpm use.
Made in USA.
Choose an option to view item availability.
Choose an option to view item availability.
Choose an option to view item availability.
