How to color resin

How to color resin

*This article is a part of a series on resin coloring experiments.  I am using one brand’s resin with another brand’s colorants.  Read the results on the first two experiments: resin coloring part 1 and coloring resin part 2.*

mixing purple into resin

In this week’s experiment, I mixed one ounce of Castin’ Craft Easy Cast resin in a 10 ounce reusable plastic mixing cup.  I separated the resin into individual 1 ounce mixing cups and mixed in 1 to 2 drops of each of the Resin Obsession transparent color pigments.

Note:  On this purple batch, I unintentionally mixed in more than that.  I mention it because it mildly impacted the final casting as I will tell you about in a bit.

pouring purple resin into mold

Mixed resin was cast into teardrop mold 404, with the exception of one color being cast into cabochon mold 403.  (I won’t spoil the surprise here as to which color.  I’ll let you guess.)

Not shown:  Both molds were prepped with a light mist of Castin’ Craft mold release and conditioner 30 minutes before pouring the resin.

transparent resin in mold

I had a beautiful rainbow when I was done.

transparent colors in resin

The results after they were demolded:  SUCCESS

The colors in the Easy Cast were what I would expect using them in the Resin Obsession super clear resin.

So what was my little blunder?  When I squeezed transparent purple color into the resin, I added in 4 to 5 drops instead of the 1 to 2 drops as in other colors.  While the resin cured, it cured with the back of the casting tacky.  It did this because the Resin Obsession color pigments contain epoxy resin.  That resin requires extra hardener to ensure it cures properly.  Adding that much color to that small (3 to 4 cc of mixed resin) was enough to cause that problem.  The other colors cured normally.  To fix it, I would dome a little bit of mixed Easycast resin to the back of the resin charm and allow it to cure.

Like this post? You may be interested in  Twelve things you need to STOP doing with resin

2 Comments

mary donnelly

my pendants turned out cloudy What can I do with them,can I fix this or do you have any suggestion on how to make them more presentable

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