What Can You Do With Yellowed Hardener and Resin?

ArtResin has a shelf life, like many other materials you may find in the art store.

ArtResin's shelf life is 12 months unopened and 6 months once opened: its shelf life begins to shorten once it comes into contact with oxygen, hence the shorter shelf life once the product has been opened. You can find the manufacturing date on the label and these expiry dates simply refer to the length of time you can expect ArtResin to remain clear.

Approximately 6 months after the bottles have been opened, you may start to see some yellowing in the hardener. This yellowing is due to oxidation, a reaction with oxygen in the air which causes the hardener to discolor, much in the way an apple or avocado will brown once cut and exposed to air.

You can still use hardener that has yellowed in the bottle, so don't throw it out! In fact, even if the hardener has turned a little yellow, it can still be used for many projects. As long as you measure and mix properly, the chemical reaction will still take place and the product will still cure as expected.

Though you may not want to use yellowed hardener on a white piece of artwork, we've got 4 different ideas for using up expired ArtResin epoxy resin including:

1. coating colorful paintings
2. making alcohol ink coasters
3. tinting it to make flow art
4. applying it over wood

We'll be preparing these 4 projects in a side-by-side comparison using both fresh and expired ArtResin to show you that once cured, you won't be able to see a difference!

ArtResin: Made For Artists, By Artists

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