Every time that I use wax resist on bisque I always end up getting a little bit of it in places I did not want. I think I've come up with an easy way to get it off so that glaze sticks fine. I use a square ended X-Acto knife to scrape the resist off at very low angle. If I also take just a tiny amount of the bisque off where the resist was glaze seems to stick fine.
I'm applying glaze to bisque. It starts to crack as soon as the shine is gone. Shortly large flakes are falling off of vertical surfaces. Lalone Crawl is one of the worst., It is very high in magnesium. But I don't want to reduce the magnesium because I like the fired affect very much.
Nepheline Syenite 70
Ball Clay 5
Magnesium Carbonate 25
I would appreciate any suggestions on how I can get the glaze to stick.