SPI Universal Clear over PPG Envirobase
Not sure who on here has used it but I do know in CA evirobase is pretty big and we are selling a lot of clear.
Two things are key when spraying over water bases for adhesion:
1) All water must be gone BEFORE the clear is applied, or it will come off.
2) High solid type clears for adhesion is key, lower solids clear have problems developing good adhesion.