I tried using the Model Master Acrylic white primer the other day on an aircraft model. It sprayed really nicely out of the AB; however, that is where the “nice” part stops. This stuff lifted even using Tamiya tape. I went through and light-sanded the entire model to feather out the areas where the primer lifted. I then recoated the model with the primer and let it sit for another 24 hours. I then went back and painted the model using Model Master Acrylic paint. I am able to scrape off the paint and primer together with my fingernail without any effort at all. I am now going to attempt to removed all of the paint and primer and start over.
I’ve seen several people mention using Krylon primer; both decanted for AB use and some straight out of the rattle can. I was wondering if anyone knows whether or not you could add a drop or two of laquer thinner to the acrylic primer to give it some bite on the plastic? I realize that you probably dont want to use too much.