Oil based paints are always very shiny and slick. Acrylic paints are not, but water based semi-gloss's and latex gloss's are also very shiny.
This makes it difficult to tell the difference.
The only solution I know of is to paint an area with the water based paint, (using a paint brush), let it dry for several hours, then check it to see if it will peel off. If the under coat is oil based, the water base will not stick properly.
If it is an oil based gloss, you will know soon as you brush on the water based paint because the paint will not stick at all and it won't lay properly.
This makes it difficult to tell the difference.
The only solution I know of is to paint an area with the water based paint, (using a paint brush), let it dry for several hours, then check it to see if it will peel off. If the under coat is oil based, the water base will not stick properly.
If it is an oil based gloss, you will know soon as you brush on the water based paint because the paint will not stick at all and it won't lay properly.
