Oxidization

You can still use hardener that has yellowed in the bottle, so don't throw it out!  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 expect... see more

Click here to view third party yellowing test data featuring various popular epoxy resin brands.   Chances are if you've landed on this page, you've had a beautiful piece of art turn yellow after using a resin product that's not specifically formulated for use over creative projects.  Total bummer.... see more