How to Color Two Part Epoxy Glue

Written by isaiah david
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Epoxy is an extremely versatile plastic made out of two primary ingredients: a resin and a hardener. Both ingredients are liquids but, when combined in the proper proportion and mixed, they set into a durable plastic. Epoxy can be used as an adhesive, a protective coating or even a modelling material to form objects. Hobbyists and painters often add pigment to clear epoxy to give it a particular colour.

Skill level:
Moderately Easy

Things you need

  • Cup
  • Epoxy resin
  • Epoxy hardener
  • Gram scale
  • Popsicle stick
  • Thickener
  • Pigment

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  1. 1

    Place a paper cup onto a gram scale and note the weight. Squeeze the desired amount of resin into the cup and note the weight. Subtract the total weight from the weight of the cup to get the weight of the resin. Then, pour the recommended amount of hardener into the cup for that amount of resin. For example, if your epoxy needs one part hardener for two parts resin, your cup weighs 0.5 grams by itself and 2.5 grams with the resin, you have 2 grams of resin in there. Add 1 gram of hardener. The cup should weigh 3.5 grams when you are done.

  2. 2

    Mix the epoxy with a Popsicle stick or other disposable tool. Stir until air bubbles are spread evenly through the material.

  3. 3

    Add any thickener you want to use to the epoxy. Sawdust, milled glass fibres, colloidal silica and many other materials are used to thicken epoxy. Slowly stir in your chosen material until the epoxy has the desired consistency and the filler is stirred evenly through the epoxy.

  4. 4

    Stir in an epoxy pigment a bit at a time until the epoxy takes on the desired colour. Stir until the pigment is completely mixed.

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