F-26 Density and Thickness
S.A.E. Specification Number F-26
A.S.T.M. Federal and Felt Association Type and Grade Number 8R5
Density Percent Specific Gravity 15.4
Actual (1) Wool Content (Min.) Percent 45
Carbon Tetrachloride Soluble (Max.) Percent 8.0
Water Soluble (Max.) Percent 6.0
Carbon Tetrachloride & Water Soluble (Max.) Percent 14.0
Ash (Max.) Percent 5.0
Tensile Strength (Min.) PSI --
Splitting Resistance (Min.) Lbs. Per 2" Width --
Trade Designation Soft Pad
Color Gray
Standard Width Inches 72
THICKNESS WEIGHT
Nominal (inch) Limits (inch) Nominal (lbs/sq. yd.) Limits (lbs/sq. yd.)
1/8 0.085 - 0.165 0.90 0.81 - 0.99
1/4 0.194 - 0.306 1.80 1.62 - 1.98
3/8 0.303 - 0.447 2.70 2.43 - 2.97
1/2 0.412 - 0.588 3.60 3.24 - 3.96
3/4 0.630 - 0.870 5.40 4.86 - 5.94
1 0.848 - 1.152 7.20 6.48 - 7.92