Never understood why 767 and a300 haven't been that poular with Diecast manufacturers.
I have used F-Dcal many time without any issues and is my go to.
One of my customs is now into about 3 months as the paint keeps highlighting various faults - and rub down and respraying various sections.
I have had to use Cellulose instead of acrylic and suspect thats where the problem lies.
Getting to be a thorn in my side as have others to do.
I find leaving it a few days and revisiting helps.