Originally Posted by DanielC
I took some autobody classes, and basic paint classes from a local community college in the 1970's. This was when Dupont Centari was used a lot, and Imron had just came out.
One of the "new" primer-surfacers we used was Dupont 100S, I think. I tried mixing and thinning a batch of it for a project, and thought I could get away with some non Dupont thinner, and it just made a lumpy jelly.
I still think the main problem was the SPI activator in the Global basecoat.
Ok, no matter what company activator he used, as long as it was a "single stage or clear coat activator" will always make the base better and there is ONLY one thing an activator can cause to go wrong and its not this, so why did the activator cause the problem?