Delrin - Black

0.032 inches 0.062 inches 0.091 inches 0.125 inches 0.193 inches

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What is it

Delrin is a lightweight, low-friction, and wear-resistant thermoplastic capable of operating in temperatures in excess of 90 degrees celsius (approximately 200 degrees fahrenheit).

How fast will this material ship?

Orders using this material will ship as fast as same day. Find out more.

Can I get a sample?

You can get a sample here.

Design Notes

Delrin is an engineering plastic and supplied to us without protective covering. As such the material is prone to scratching which most apparent on black. If you are considering making an 'appearance' product like jewelry acrylic is a better alternative.

The manufacturers tolerance for the thickness of the materials is as follows:

Material thicknessPossible Range
0.032” / 0.8mm0.028" - 0.035"0.7 - 0.9mm
0.062” / 1.5mm0.053" - 0.065"1.3 - 1.7mm
0.091” / 2.3mm0.081" - 0.100"2.0 - 2.6mm
0.125” / 3.2mm0.113" - 0.139"2.8 - 3.6mm
0.193” / 4.9mm0.174" - 0.212"4.4 - 5.4mm

Engraving Delrin

Derlin can be engraved however the engraving does not contrast in the same way as acrylic so the details stand out as well. There are 3 types of engraving possible with laser cutting. Area engraving, line engraving and a combination of both.

Area engraving is great it you need to mark a large area on the surface of the material. To specify area engraving set your shapes to have a fill color of black with RGB values of 0, 0, 0. The way this engraving is performed is like an old dot matrix printer except instead of dots of ink it uses pulses of the laser beam. This is a surface finish not deep enough to be used for pocketing or inlays. The depth of the engraving ranges between 0.1-0.5mm.

Line engraving is like a really shallow cut. To achieve this effect the stroke color to red with RGB values of 255, 0, 0 and set the stroke style to a width of 0.01 mm. The laser beam follows along the red lines that you have in your design and marks the surface of the material. The result is crisp but it can be a time consuming technique if you have a lot of small details like text.

Using a combination of both engraving types typically gets the best result. Set your shapes to have a fill color of black with RGB values of 0, 0, 0, the stroke color to red with RGB values of 255, 0, 0, and set the stroke style to a width of 0.01 mm. The line engraving causes the laser beam to trace around the edges of the engraved areas making them more crisp and bringing the details to life.

Construction Techniques

Creating structures from delrin can be tricky due to variations in the material thickness. Creating a design that can accommodate variations in the material thickness is the best way to go.

For some tips on how to design for plastic see this post.

Additionally the laser cuts at a slight taper (1-2 degrees) since the laser beam is shaped like a cone. The tapering causes one side to be slightly smaller than the other side. The taper is almost unnoticeable in 1/8" material; the thicker the material, the more noticeable the taper. When using laser-cut parts such as wheels or gears, you might need to position the parts in an alternating pattern so that the tapers “cancel out”.

Typical Uses

Delrin is commonly used for making drones, electronics enclosures, hardware mounts, washers and gaskets, bokeh filters, guitar picks, stencils etc

Adhesives, joints and fastenings

Delrin is very difficult to bond using solvents. It is possible to bond using a combination of surface treatments and expoxy or polyurethane adhesives. It is possible to bond by melting. Screw joints should be pre-drilled to avoid splitting.

Tips from other designers

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