I can use some advice. I'm painting a couple of Korber Apartment building flats which I purchased from Mr Muffin. I want to do them in more than 1 color. So I've removed all the flashing, washed them with soapy water, rinsed, and set them out to dry. I bought several colors of plastic compatible RustOleum spray paint from my local big box store. The paint is satin, but I can hit it with flat when I'm done. I sprayed the base color and let it dry about 6 hours. Then I used blue painter's tape to mask off the desired sections, made certain the edge was tight, and hit it with the second color. Let that dry about 30 minutes-ish and pulled the tape. I'm getting the base color to come up with the tape, which is not the desired or intended effect. Is there a better tape for doing this, or did I do something else incorrectly?