I use this product to prime most of my models. I just never seem to have much luck with the cheap big box home store or auto store primers. This product applies uniformly with excellent coverage. Dries quickly to where you can handle a piece in 10-15 minutes - you have to try to make it run. Will fill minor imperfections but if you are looking for a product to fill larger flaws then try Mr Surfacer 500. In the Surfacer line, the granules in the product get finer as the product number increases. And yes this stuff is expensive but it's excellent and I'm pleased Hobbylinc carries it and at a very good price.

Goes down easy and makes a great surface for paint adheasion.