|Test your knowledge with this quick quiz|
A few months ago, Cabinetmaker magazine published a true/false quiz about glue, written by Gene Wengert, who has probably done more than anyone in the last 30 years to educate us about wood and adhesives. I enjoyed taking the “test” and, with full credit to Gene for the idea, I’m adapting it for finishing.
If you’ve been reading this column regularly, you should do very well.
1. All solvents for finishes are classified as VOCs. True or False?
2. Water-based lacquer is an emulsified form of nitrocellulose lacquer with all the same properties. True or False?
3. The primary way to reduce orange peel is to increase air pressure, thin the finish or both. True or False?
4. The most important instruction to follow when spraying a finish is to watch what’s happening in a reflected light. True or False?
5. The purpose of a sealer is just as the name implies — to seal the wood. True or False?
6. Washcoating refers to a procedure of washing the wood with a solvent to clean it before applying a finish. True or False?
7. The same stain looks very different, depending on whether you wipe off the excess or spray the stain and leave the excess unwiped. True or False?
8. Many products labeled “tung oil” are not tung oil at all. True or False?
9. The easiest way to make sense of finishes is to divide them into three groups by the way they cure: evaporative, reactive and coalescing. True or False?
10. You can avoid blotching by using a pigment stain instead of a dye stain. True or False?
11. You can get just as good a result with a cheap Chinese “knock-off” spray gun as with an expensive U.S., European or Japanese spray gun. True or False?
12. Conversion varnish has to be kept fairly thin on the wood. True of False?
13. You can make your own catalyzed lacquer by adding the catalyst to nitrocellulose lacquer. True or False?
14. Flatting agents accumulate with each additional coat of finish, making multiple coats of satin or flat appear noticeably flatter than a single coat. True or False?
15. “HVLP” refers to spray guns with air provided by a turbine rather than a compressor. True or False?
16. You can make any finish that thins with lacquer thinner dry faster in cold weather by adding acetone to it. True or False?
17. The most efficient way to fill the pores of porous woods such as mahogany and walnut is to build up coats of finish and sand them back. True or False?
18. The critical element causing color change in wood and the deterioration of finishes is UV light. True or False?
19. The best way to eliminate dry spray when spraying the insides of cabinets and drawers is to avoid spraying directly into corners. True or False?
20. A spray pattern that is heavy at both ends and light in the center can be corrected by reducing air pressure. True or False?