Proper Way to Glue Delrin

Written by kimberly johnson
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Delrin is the brand name for a range of acetal polyoxymethylene (POM) resins manufactured by the Dupont Corporation. According to the Dupont website, Delrin includes both homopolymer and copolymer products that are used in various industries, including automotive, engineering and construction among others. Like other plastics and polymers, traditional gluing methods are not effective on Delrin. Although they may appear to work at first, the glue will detach as it cures. To properly adhere Delrin to another object, the material must be prepared before applying the glue.

Skill level:
Easy

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Things you need

  • Pencil
  • Flat surface
  • Coping saw
  • Cloth
  • Epoxy
  • Clamps

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Instructions

  1. 1

    Identify the section of the Delrin that will be glued to the other object. The best way to do this is to lay the other object on top of the Delrin, or vice versa, and use a pencil to draw a line where the two objects meet.

  2. 2

    Place the Delrin on a flat surface and use a coping saw to create 1/8 inch cuts into the surface of the Delrin. Space the cuts evenly, approximately every 3 inches along the entire surface to be glued.

  3. 3

    Turn the Delrin 90 degrees and make vertical cuts that intersect the previous cuts. These cuts should also be spaced at 3-inch intervals or closer, if gluing a small section.

  4. 4

    Wipe the surface of the Delrin with a clean cloth to remove as much of the dust as possible.

  5. 5

    Open a bottle of epoxy glue and apply a line over the section of the Delrin that you want to glue. Make sure to apply enough glue that it slightly overfills the coping saw marks.

  6. 6

    Press the Delrin against the object that you want to glue it to. If necessary, place clamps on the two items to hold them securely together until the glue is cured. Cure time for glue varies by manufacturer but it's a good idea to let the glue dry overnight for proper adhesion.

Tips and warnings

  • If you are gluing two pieces of Delrin together, make saw marks in both pieces before applying the epoxy.

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