Unfortunately, resin kits don’t always stay clear. Sometimes, you go to use your clear resin only to find it’s turning yellow.
What’s. Going. On??!
It’s completely normal for a two-part resin kit to yellow, and should be expected.
All resin kits will yellow eventually. The tough part is knowing exactly when that will happen. The hardener will yellow first. While the resin part may yellow, the hardener yellows quicker.
Resin kit components turn yellow for two reasons:
Reason 1: The kit is old.
You should use epoxy resin kits produced within one year of manufacture. Only buy enough resin you can use within six months, knowing that you can go a little longer if necessary. Like whoever throws out extra resin??
Reason 2: The kit is oxidizing.
Open bottles allow the exposure of the clear resin liquid to oxygen in the air, turning them yellow. After opening a resin kit, you should use it up as quickly as possible, preferably within thirty days.
By the way, I’m over the top fussy about rotating our stock of epoxy resins. Know that if you buy resin from us, you will get the freshest, clearest quality resin anywhere.
So what should you do if your clear resin is turning yellow?
If you’ve stored your resin properly, it should cure.
If you decide you don’t want to use it, you must not really have a resin obsession. Okay, just kidding. (We’re a thrifty bunch too.) Instead, dispose of your resin appropriately.
Moving forward, buy smaller clear resin kits that you can use within 30 to 60 days of opening.
For example, don’t buy a gallon kit of resin that will take you six months or more to use. Instead, buy four sixteen-ounce kits of resin. Then, use a kit completely before opening a new kit.
Frustrated that your resin projects aren’t turning out like the picture in your head?
I get it. Spending your time and energy making something you wouldn’t show anyone is so disheartening. It’s why I wrote the ebook Resin Fundamentals. I’ve condensed my 17 years of resin experience into a PDF book that will take you from confused to confident with resin in an afternoon. Buy now, and a download link arrives in your email in minutes.
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