Should I varnish my acrylic painting?

The basic difference between varnish and polyurethane is that a varnish is a thicker layer than polyurethane. Both work as a sealant to a surface. The key to a successful...

Two coats of varnish are usually enough for an acrylic painting. Be sure to apply the varnish in thin coats, and wait for each coat to dry before applying another.

You'll create bubbles in the varnish that will harden onto the surface of your acrylic painting. With this in mind, it's never a good idea to shake your varnish.

Varnish dries a lot faster than acrylic paint. Because of this, you should never apply varnish to a painting that isn't fully dry.

You can use a latex paint remover and a small firm bristle brush to remove acrylic paint from various surfaces and clothing.

Sanding is the main way to remove old varnish. If that doesn't work, there are paint removers and gels that you can apply, wait about 15 minutes, then scrape away....

You can use sand, but preferably with chemical strips and only if you are experienced. Other medias aren't that great.