- Recently varnished surfaces. Varnish needs more or less a 6-months curing time before you can paint onto a varnished surface.
- An oil treated surface (linseed oil and other oil products) also needs more or less a 6-months curing time.
- If a surface was waxed within 6 months you need to sand first. The paint will not grip onto wax as the wax itself disintegrates. The surface needs to be wiped down WELL with Lacquer thinners.
- Wait 20 minutes and then start painting.