FREE C33 Techniques for Wood Staining and Clear Coat Finishing Questions and Answers

Question 1

When staining softwoods like pine, which are prone to blotching, what product should be applied to the bare wood before the stain?

Accepted Answer

A pre-stain wood conditioner.

Answer

A thin coat of shellac.

Answer

Mineral spirits.

Answer

A sanding sealer.

Question 2

What is the primary purpose of sanding with fine-grit sandpaper (e.g., 220-grit) between coats of polyurethane?

Accepted Answer

To promote adhesion and smooth the surface for the next coat.

Answer

To help the polyurethane dry faster.

Answer

To darken the color of the finish.

Answer

To remove the stain from high spots in the wood.

Question 3

When applying an oil-based penetrating stain, what is the correct technique to achieve an even color?

Accepted Answer

Apply the stain and wipe off the excess before it dries.

Answer

Apply a thick coat and let it dry completely without wiping.

Answer

Spray on two light coats, letting each dry for 24 hours.

Answer

Brush the stain on and immediately apply a clear coat over it.

Question 4

Which type of clear finish is most suitable for an exterior wood door exposed to direct sunlight?

Accepted Answer

A spar urethane with UV inhibitors.

Answer

Standard interior polyurethane.

Answer

Shellac.

Answer

Nitrocellulose lacquer.

Question 5

After applying the first water-based clear coat to bare wood, the surface feels rough. What is this phenomenon called?

Accepted Answer

Raising the grain

Answer

Blushing

Answer

Orange Peel

Answer

Alligatoring

Question 6

A gel stain would be the best choice for which of the following applications?

Accepted Answer

Staining a vertical, fiberglass entry door to look like wood.

Answer

A large, flat hardwood floor.

Answer

Spray-finishing a set of louvered shutters.

Answer

A deep-penetrating finish for oak.