How to use acrylic paint sealer?

I dont know what product you purchased but you clean up acrylic products with water and a little soap, unless it's an emolsified oil based product made into an acrylic and even then paint thinner as a final rinse should be plenty. Xylol a.k.a. Xylene is nasty stuff and would not be recomended as a clean up product for an acrylic based clear coat or paint, maybe a car paint - something I know nothing about. None the less, 1 coat, lightly sand with 200 - 220 grit, another coat to finish it.