I would like to paint underside of my PEI for my upcoming build, but I do not have access to an oven to bake a BBQ type paint. Has anyone used standard spray paint? I see that it has a max temp of 93C which is below ABS recommended bed temps. Also there is spray engine enamamel which has max temp of 260C and doesn't require baking, but flattest black is listed as low-gloss. There is also option of just using the BBQ paint and using the bed to heat it up and cure before adhering. Any suggestions?