u/MoreEmpathy222

Hi, I had first UV resin from Aliexpress and it went well, dices were crystal hard after 5 minutes under lamp. I ordered another two brands of UV resin, and dices remains sticky when I pop them out. I cured them under lamp for good 20 minutes and then have them on direct sunlinght for 2 days! (on my balcony is 40°C). and after poping they are really hard, but on all of them remained my fingerprints and dust and everything, and they look terrible. Is it possible for UV resin to cure so long? 😭 Please help me