I keep reading how rinsing with water before curing in the UV lamp results in white residue and artifacts... Yesterday, I got myself a new UV lamp and rinsed a new printed part in tap water, then with alcohol before throwing it into the UV lamp right away.. When I got back after an hour, there were white residue all over the print. I thought it must've been water I washed with.
well.. today I printed a part again and decided to wash the part with alcohol only.. I started seeing bits of milky white droplets form all over the part before it dried and before I threw it into the UV lamp, so now I'm left wondering if its the water or the alcohol that causes it, or perhaps its just resin reacting with either the water or alcohol you use. I guess whatever you wash your part with, its best to make sure you give it a final was with clean water or alcohol.. Do not recycle the liquid.. and also let it air dry first before throwing it into a UV lamp.