Sticking Kilnwash, Better Kilnwash?

[Teknoron]

I do mainly frit casting , I kilnwash all of my molds using a airbrush with several coats toss them in the kiln dry them and repeat. I also use slide 1800 boron spray, overkill maybe after losing a couple of molds I rather be safe than sorry. Anyway I bought some kilnwash some time ago and it is nearly used up. Not sure the name or brand bought it from a local shop. Then one thing I hate about it is that 80% of the time I have kilnwash stuck to my pieces, little vinegar and it washes off but I have to spray the mold again. Is there a better solution, I found paragons liquid kilnwash, primo primer and hi-fire. Which would be the best to use.

[jim simmons]

mr 97 from colour de veere
Jim

[Joe Pfeifer]

If you are making your own molds, and if you use an investment such as R&R 910 glass cast, you do not need any kiln wash. The glass releases beautifully!