Water Level Controls and Devices. A water column is used on a steam boiler to reduce the turbulence and fluctuation of the water level so the gage glass can provide a steady, accurate water level reading. The use of a water column is not mandatory.
Preparation. Verify the paint is completely dry. Never use varnish to seal acrylic paint if it is even slightly wet. Dust the surface of the dry paint gently with a clean cotton rag or paper towel. Rinse a jar or cup with water to remove any dust particles. Read the label on your varnish to find the correct water-to-varnish ratio. Mix the varnish with water in the jar or cup.
To paint a wooden surface with acrylic paint, the first step is preparing the wood. To complete this project, you need the wooden object or surface, sandpaper, tack cloths, wood primer, a palette, a paintbrush, a sponge brush, a bowl of water, paper towels, acrylic paint, and wood sealant or varnish.tep 5. Using a paintbrush, apply the acrylic paint to the primed wood, following the design if you are using one. You can use a variety of brushes for different surfaces on the wood, such as a small round brush for precision painting and a flat brush for painting around curves.