Degreasing an Oil Basecoat with Whiting – A How To

Types of water-base glaze include reversible (beer glaze) or non-reversible (acrylic Glazing Medium). When a water-base glaze is applied over an oil basecoat, it can result in unwanted reaction called “beading”. “Beading” is when the basecoat repels the glaze, causing it to form small bead-like puddles on the surface. The more watery the glaze, then the more it has a tendency to bead (heavier glazes will bead less). In this post Pierre Finkelstein of Pierre Finkelstein Institute of Decorative Painting shows you how to solve this issue with a technique called “degreasing”.

HOW TO CREATE THIS FINISH

Use our step-by-step instruction below

MATERIALS NEEDED:

Here is a list of the tools & supplies you will need to achieve this technique. Supplies available at fauxbrushes.com are linked below and listed at the bottom of the page.

Whiting
Water
Green Scrubby or Rough Brush
220-grit Sandpaper

SAND THE SURFACE

STEP 1 – SAND THE SURFACE: Sand the surface well with 220-grit sandpaper, using fair amount of pressure. Dust the surface.

MIX WHITING 2:1

STEP 2 – MIX WHITING 2:1 : Prepare a mixture of whiting and water. Combine 2 parts water with a 1 part of whiting to a container (2:1)

DEGREASE THE SURFACE

STEP 3 – DEGREASE THE SURFACE: Add whiting mixture to the surface.

Then, using a scrubby or a rough brush, rub the entire surface energetically and with pressure. Let dry, then wipe off the dried film with a clean, damp sponge.