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material to make eraser

material to make eraser

material to make eraser

(OP)
Hi , i'm looking to buy a material that pencil eraser is made of. I have injection molding application fot that material.I know that they are using pumice + other additives.I'm only worry about that blend of pumice will damage my screw and barrel.Is there anything that i can use with injection molding process to make final product that would work like a eraser??

RE: material to make eraser

Try this:

SMR L           100
White factice   100
Maglite D        30
Lithopone       100
Barytes          80
Whiting         150
Titanium dioxide 10
Light process oil 30
Zinc oxide       10
Stearic acid      2
Sulfur           6-8
MBTS             1-1.5
DPG              1-2

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