Density is the standard term for determining weight of a cubic foot of material, any material. A cubic foot is a cube that is 12″ x 12″ x 12″. Its weight is the density. The higher the density the thicker the cell wall and the tougher and heavier it is. Thicker cell walls mean it takes more pressure to crush the cell wall. Heavier means there is more material in its makeup, so it costs more. The only physical difference between a 4-pound density Precision Board and a 75-pound density Precision Board is the thickness of the cell wall. The cell wall thickness only determines toughness and has no effect on its weather-ability, solvent resistance, etc.
Precision Board is available in the following densities (click on individual densities for data sheet information): 4, 6, 8, 10, 12, 15, 18, 20, 30, 34, 40, 48, 60, 70, 75.
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Material Selection Guide
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Density explained in 22 seconds
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