@MakerMatthew No, don’t notice a lot of extra flareup when engraving really. Not sure how much it really matters, but I mostly use Ironlak paint which is suppose to have lower VOCs than average. I use metallic paint here and there but haven’t experimented with a lot of the copper stuff. I agree that if it has a lot of real copper, that might be an issue. Let me know if you experiment with it and what your findings are!
@dorine.flies Thanks! It’s all acrylic spray paint and mostly Ironlak brand, but I use others as well. I love spray paint becasue adding a new layer on top of older paint loosens it up and can make for an interesting effect. It takes some practice and experimenting , but you can get some neat effects with it.