Sandpaper 101

Why is sandpaper similar to saw blades?

• The sharp edges that cut the wood the way a saw blade does.

• Because you use it while woodworking.

• You can use it like a saw.

• Because you can put it in a machine to use it.

What are the two different types of sandpaper?

• Smooth and Rough.

• Yellow and Blue.

• Commercial and Industrial.

• Paper and fabric.

Is 40 grit sandpaper fine or course?

• Fine

• Course

What are the classifications of sandpaper?

• Coarse, Medium, fine, very fine

• Coarse, Medium and Super Fine

• Coarse, Medium, Fine, Very Fine, Extra Fine, Super Fine

• Coarse, Medium and Fine

What are the 3 different uses for Coarse, Medium and fine. In that order.

• Heavy sanding, sanding between coats of paint, final sanding.

• Smoothing the surface, Stripping paint, removing dust spots.

• Heavy sanding and stripping, Smoothing of the surface, Final sanding before finishing.

• Heavy sanding, sanding between coats, Fine sanding of the finish.

What are the 3 characteristics of commercial and industrial grade sandpaper?

• Grit, paper and size.

• Grit, fabric and uses

• The abrasive grit, the backing material and the bonding agents.

• Color, uses and wear.

Why can sanding with 400-grit be a waste of time before finishes?

• Because the wood will show scratches.

• Because it would take too long.

• Because 400-grit will tend to seal off the wood grain and prevent finishes from penetrating.

• Because it won't look as nice.

If you start sanding with 220-grit and then sand with 80-grit, would this be considered going through the grits?

• True

• False

Why is open coat sandpaper preferred for woodworking?

• Because it clogs up slowly.

• Because it takes paint off.

• Because open spaces between the grits help prevent clogging by giving sawdust a place to go.

• Because it works faster.

Why are aluminum oxide and garnet sandpaper preferred for woodworking?

• Because they smooth the wood better.

• Because they are both natural elements.

• Aluminum oxide exhibits friability and Garnet is excellent for final sanding.

• Because Aluminum oxide and Garnet both don't wear out.