Spray urethane is commonly used for finishing painted surfaces, but it's also. Both oil- and water–based polyurethane products bond well to dried latex paint, .
. a water–based polyurethane sealer that adds shine to wood and latex–painted. You can apply Varathane to any surface containing interior and exterior latex. Let the first coat dry until it is sticky to the touch, and then apply a second coat.
However, after it starts to dry, the red stripes (over white base) start to look. Also, am I right in assuming that water based clear coat is my only option here? I really want a good clear and very strong finish since the latex paint .