I don't know if there is something wrong with what you bought, but I use Solarez Dual Cure resin a lot, and like it.
I dip it, and let it hang to drip off over the dipping jar. I do it away from both sunlight, even reflected, and LED lights, which shine in the UV spectrum, too. Once it's stopped dripping, I wipe any excess off the tail hanger with a paper towel, and hang them in my UV nail box for three minutes.
I find it's fine with lighter colors, but I do see some blushing with darker colors. I've been told to buff away the blush, but, so far, it hasn't been bad enough to worry about;
Call Gary Fisher at Solarez, (800) 875-3833, and tell him what your having a problem with. He's really good to talk to, and smart about his products, too. He'll help you sort it out.