[Chris Ellis]

Hey Guys,
I have been trying to (with some success) cast resin on top of photos within a frame. I have been setting the photo down 5mm thereabouts from the top edge of the frame and filling it up flush with the frame edge. I have been using polyester resin for its clarity and hardness but even when using a 1 to 100 mix of hardener I am having cracking issues where the resin splits away from the frame and/or lifts and buckles slightly off photo creating air pockets underneath. Help! I feel like I am still having to much heat generated and this is my problem however I don’t want to underdo the catalyst.

Thanks for your help! Appreciate it.

Chris

[Katherine Swift]

Hi Chris,

Yes, it sounds like your polyester resin is getting too hot.

Have you considered an epoxy? They also shrink less which may be going on here.

We have several in our store: https://shop.resinobsession.com/collections/resin/epoxy

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