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My friend a painter told me you can't paint lacquer or enamel over the oil based rustoleum primer because the paint not the primer will curdle.
But if you've tried this then I stand corrected.


One thing for sure, anytime anything is being introduced that is from a diffeent paint system, proceed with caution, try small test areas first.
the ruto/tremclad rpimer is not much different that old time enamel rpimer used by auto manufacturers way back in the 40s.
Once the tremclad/rusto primer is fully cured, even lacquer primer surfacer can go over it.
What I do with 2 k urethane high build primer is this, I spray a mist coat first, then spray on heavier coats, this I have done as recently as last night, right over a car with tremclad primer on it.
So be aware, and test areas when not sure, if tremclad or rusto primer is soft and not cured, then a lacquer based or 2 k urethane primer will wrinkle it for sure.
When I tell people I add reducer and hardener to tremclad paint, people figure it won't mix, but infact it does quite nicely........