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Hints, Tips and Solutions (Do NOT post requests for help here) If you have any useful general hints and tips for vintage technology repair and restoration, please share them here. PLEASE DO NOT POST REQUESTS FOR HELP HERE!

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Old 10th Jun 2021, 8:56 pm   #1
unitelex
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Join Date: May 2005
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Default Method for colouring and texturing epoxy resin

I found by experiment that I could tint normally clear epoxy resin very easily using laser toner powder (laser printer).

I needed to achieve a dark anthracite colour to fill in a chipped surface.
I am aware that black epoxy is available but did not have any nor did I want to purchase a tube especially for this very small job.

I used black toner powder, added while mixing the clear adhesive and hardener together. While setting I noticed that the result was going to end up too glossy compared to the base material so while it was still tacky I dusted the surface with more toner giving a matt look. The results were surprisingly good.

I have not tried with magenta, blue or yellow toner or any blending of these.

Best Regards
Chris
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Old 11th Jun 2021, 11:08 am   #2
emeritus
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Default Re: Method for colouring and texturing epoxy resin

When I was a student, in the lab at STC where I did work experience, every bench had a small tool box which included a pack of Araldite and a small jar of Titanium Oxide powder that they used to mix with the Araldite where a white finish was required. I have coloured Araldite brown to fix some earthenware plant pots by grinding a piece of broken pot in my wife's kitchen pestle and mortar to a very fine powder.
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Old 14th Jun 2021, 4:34 pm   #3
greenstar
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Default Re: Method for colouring and texturing epoxy resin

I wonder how to achieve a brown bakelite colour and whether filing/grinding bakelite to mix with it would achieve that? I guess this has been done effectively.
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Old 19th Jun 2021, 12:07 pm   #4
chriswood1900
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Default Re: Method for colouring and texturing epoxy resin

Quote:
Originally Posted by greenstar View Post
I wonder how to achieve a brown bakelite colour and whether filing/grinding bakelite to mix with it would achieve that? I guess this has been done effectively.
I think you might need to be careful where you get the old Bakelite from, as some used asbestos fibres as the filler and if ground up they may present a health hazard.
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