Sand paper Notes 1 What the heck is

Sand paper Notes 1

What the heck is the stuff? Why do we need it? How do I know what to use? 2

Sand paper is a combination of 3 items? • A backing material - cloth or paper • An adhesive - Glue or epoxy • An abrasive material - natural or manmade 3

Sandpaper is some type of abrasive mounted on a piece of paper or cloth. It is measured in what is called grit 4

What is Grit? • Grit is the way sandpaper is measured. To determine grit it is measure buy the number of pieces in 1 square inch on the paper. • It is applied in 2 ways Gravity feed Electrostaticly 5

Ranges of Grit • The coarsest paper manufactured is • 16 Grit • it looks like Rocks on paper • Who would use it? • The finest paper manufactured is: • 2000 grit • This is hard to find paper, it feels like notebook paper • Who would use it? 6

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Grits in woodworking • In woodworking the grits usually range from 60 to 220. • We will use 4 different grits in our class • 60 - Coarse • 80 - Medium • 120 - Fine • 220 – Extra Fine 8

There are 4 main types sandpaper made • Garnet - Used in cabinet making, Natural Material, but Not a durable product • Aluminum Oxide - Used in cabinet making, it is a Manufactured product and is a very durable product 9

• Emery - Used in metal working with a cloth backing. It is very durable and can get wet. • Silicon Carbide Used in auto body work. It is known as Wet dry paper. It has a plastic coating so it can get wet 10

What will we be using in our classes? • We will be using Aluminum Oxide paper. It is a brown color. The darker the color, the coarser the grit. 11

How do we sand? • The only important thing to remember about sanding in one thing, the direction. 12

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