It's obviously hot where you are. I'm thinking your spray coat is setting up before you get the back coats on. You need to add the SCC or scratch coats as soon as your face coat starts to set. You'll see it start to change from shiny to dull , that's the right time. Not before or it could push the fibers through. If you wait too long, that's when the micro cracking happens. Make sure you have all your batches ready before starting so timing won't be an issue.
I'm in Canada, and had the same thing start to happen as soon as we got our annual 2 weeks of hot weather. No problems since.
Hope that helps.
It could also be because your mist coat is too thick and what your seeing is shrinkage cracks. I spray PVA (8mm) fibers in my mist coat. They spray fine and reduce/eliminate shrinkage cracks.
ok, friends, I talked with Grace comercial in Spain and he will send me a sample Eclipse floor, my question is, according to the formula I use, I will have to change this formula? reduce the water in terms of amount shrinkage reducer?
how many questions right? I hope not be tedious.