Cart 0

Expert's Corner — water-based

TIP: Spraying Outside

blush bob debris finish finished finishing flexner lacquer sandy shade shellac the finishing store water-based woodfinishing woodworking

One solution for spraying your project when you don’t have a spray booth or adequate exhaust in you shop is to spray outside. There are some conditions, however, for getting good results. First, you need to pick a day with temperatures in the high sixties to low eighties. Colder will cause the finish to take much longer to dry and this will create more time for debris and bugs to land on and stick to the finish. Hotter will cause the finish to dry too fast, which may lead to dry spray—the finish drying before it lands on the object....

Read more →


TIP: Basic Understanding of Solvents

based drying ethylene evaporates finish glycol lacquer mono-butyl shellac the finishing store toluene tolulol water water-based woodfinishing xylene xylol

Following is a basic understanding of the common solvents available in paint stores and home centers. Mineral spirits (paint thinner) and naphtha dilute and clean up oils and varnishes, including oil-based polyurethane varnish. Neither of these solvents damage any fully dried finish, so you can safely use them for cleaning—that is, removing grease or wax. Denatured alcohol thins and cleans up shellac. This solvent will damage a dried shellac finish almost instantly and lacquer and water-based finish fairly quickly, so be very careful if you use alcohol for cleaning. Lacquer thinner and acetone thin and clean up all solvent-based lacquer...

Read more →


TIP: Spotting Glue Seepage

bob finish finishes finishing flexner glue surface the finishing store tips water-based

It’s very irritating to apply a stain to a project only to find there’s glue on the surface that prevents penetration. Areas with glue show up lighter. There are two easy methods of checking for glue so you can remove it: wet the wood with water; or wet the wood with a thinner such as mineral spirits (paint thinner). Water will turn the glue white, as shown in the picture. The area will be lighter under mineral spirits, similar to the way it looks under a stain. The problem with using water is that it raises the grain of the...

Read more →


TIP: Strain Water-Based Finish

bits can container dust finish finishing homemade jar plastic rust solidify spray-gun strain strainers the finishing store water-based wood finishing woodwork woodworkers

TIP: Strain Water-Based Finish

It’s always a good idea to strain a finish before brushing or spraying it to remove dirt and other unwanted particles. It’s especially important to strain water-based finishes because small bits of finish often solidify in the can, and rust that forms around the lip of the can may fall into the finish. Commercial strainers are widely available wherever paints and finishes are sold. These strainers are much easier to use than any homemade cloth system you may think up. Straining always involves using a separate container, which can be the spray-gun cup itself if you’re spraying, or a jar...

Read more →