UV Protectant Exterior Clear Coat?

[Perry Holbrook]

I'm making a couple of barn quilts to hang on the new shop. I recently discovered PVC sheet stock that is 5/8"x48"x120". I'm using it to make the shutters for the house and shop and had some left over. We painted the quilt design on the board using outdoor acrylic craft paint, which I've had good luck with on other applications. One of the quilts will see a lot of direct sun. I'd like to find a clear coat that would help block the UV so we don't have too repaint as often. Got a product that has served you well?

[Michael Schuch]

Spar varnish is generally used on boats where there is a lot of sun exposure. It will add a yellow tint to your white paint though.