This week, we wanted to share one of the common questions from users of our popular water based General Finishes Milk Paint.
"Do you need to prep an existing finish before applying General Finishes Milk Paint?"
The answer is yes. Even though many companies claim that no prep is needed, we take a different view. You can test other finishes you have applied simply by trying to scrape the paint lightly with a fingernail. A paint that comes off with this test is basically a paint that has.....failed. If it flakes, then you need more prep, unless your objective is the chippy look. If your objective is for the finish to last, we always recommend the following two best practices every time.
FIRST: clean your project with a Scotch Brite pad and a 50/50 mix of denatured alcohol and water. Do not use mineral spirits with a water based product.
SECOND: sand with 150 or 180 grit sand block. We recommend the Softback Sanding Sponges. They are not messy and last forever. Sanding is critical to the success of every finishing project as it further cleans the surface and opens up the grain to improve the adhesion of the new paint or finish. The glossier the original finish is, the more important is to sand to open up the surface!
With that said, folks are writing us and...