Re: How many layers of paint for respray?!
A smart repair is never that good in terms of paint quality, the laquar will yellow over time - if it stays on that long and the paint is not that durable.
You can still get 2-pack (under agreement - I can) this is by far the best paint (in my opinion £ for lb) in terms of durability and out the out the gun finish.
Following that, water based like most paint shops hve gone over to, but the smart repair system like they do on your driveway is not as good.
And layers of paint depends on what paint your putting on, tack cloth after base coat is a must, else the laquar can stick to overspray dust which peels bad (I think they call it moon dust?), but laquar on wet (not flashed off) base coat can cause a haze effect.
I have done 1 heavy, steady built up coat of laquar before and its been plenty, other times 3 much lighter coats, rather than counting the coats, its the micron thickness you need to look at.