DIY Epoxy 'Enamel' Pins




Introduction: DIY Epoxy 'Enamel' Pins

This started as a one-off experiment for my cousin's school project and ended up as a weekly family activity. Everyone designs their own pins, they get 3D printed and paint and epoxy is used to create faux enamel. Very simple, a bit messy, but definitely fun and unique.

All you need is a 3D printer, epoxy and paint.

Step 1: 3D Printed Moulds

You will need some 3D printed moulds. They are easy to make and the sky is your limit. You can create whatever you want, just make sure you don't make them too small. Fine detail will be difficult to fill in with epoxy.

You can either print your moulds in different colours (if you have a variety of PLA colours) or simply paint it whichever colour you want. I used a combination of spray paint and acrylic paint to make my moulds pop.

Just in case you wanted to use my moulds:

Step 2: What You Need

-3D printed moulds
-Paint (acrylic, leftover tester pots)
-Cheap two-part epoxy glue
-Scraps of cardboard, plastic off-cuts, disposable shot glasses for mixing the glue
-Toothpicks, mixing sticks, syringes (optional)
-Disposable plastic bags like frosting, sandwich bags
-Badge pins, pin tie tacks

Step 3: Preparation

Epoxy dries within minutes, so you will have to work as fast as possible. Decide which colour paints you want to use and put pea-size amounts on a piece of cardboard. That way you can work fast and you won't contaminate your paint tubes with epoxy.

Extrude desired amount of epoxy onto your scrap cardboard, add a dot or two of paint and mix thoroughly, but as fast as possible.

Epoxy darkens once hardened, so make sure the colour of your paint and epoxy mixture is brighter than you want it to be. When it comes to amounts- you will have to eyeball it. It's always better to have more than to run out mid-way.

You could also use plastic bags to create mini piping bags to fill the moulds with epoxy and paint mixture, but only use it when filling in large areas. Piping bag method is super useful, but can be messy.

Step 4: Application

Mix your paint and epoxy mixture. Use toothpicks to move blobs of glue to the mould and spread it around as neatly as possible.

Step 5: Fasten and Secure

Use epoxy or glue gun to attach badge pins or pin tie tacks to your 'enamel' pins.

Step 6: Enjoy!

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    Question 1 year ago on Introduction

    What would happen if you spray painted soft enamel pins? I received a bad batch from a company in China and the colors are not correct. But I thought about making a cool gold version by spray painting them in gold. Do you think the color would stay, will it Chip? What issues would you see coming? I would love your opinion if possible


    3 years ago

    What kind of 3D printer do you use?


    Question 3 years ago

    I have some pins but one of my tack pin fell off whIle it was drying off and when I tried attaching it again the acrylic already dried. How do you attach the pins back? Do you use glue or do you burn them a little bit?


    4 years ago

    These are great, and got me wondering about an alternative to 3D printing since I don't have one.

    Nice to see the £1 shop epoxy being put to good use! I must try it :)

    I'd never thought of using epoxy for decorative effects before, but have wished in the past I could colour it (for colour matched repairs)

    Such great ideas, thank you!


    4 years ago

    Yet another reason I want a 3D printer! These are great! :D