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Table II. Property requirements
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Roving, Glass, Fibrous ( For Prepreg Tape and Roving, Filament Winding, and Pultrusion Applications)
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Property requirements



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MIL-R-60346C
1
/The supplier has the option to perform either the Package (Ball) Density or
the Shore "O" Package Hardness test.  Only one or the two tests is required.
2
/Unless otherwise specified, the catenary requirement applies only to rovings
having a yield of 700 or more yards per pound.
/NA - Not applicable
3
4
/The specimens of 4.3.5 shall not fuse during the specified ignition.
5
/These values are applicable only when a specific resin system is not
specified by the procuring activity (see 6.2).  The 4 ,500 psi minimum applies
to polyester type resin matrix and 6,500 psi minimum applies to epoxy type
resin matrix.  When seemed necessary, the procuring activity shall specify a
specific resin system and a corresponding minimum value for horizontal shear
strength.  For class 3 material, a value agreeable to both supplier and
procuring activity shall be agreed upon.
6
/Applicable only when specified by the procuring activity (see 6.2).  Actual
values are dependent upon a given resin.  Therefore, values shall be agreed
upon between the supplier and the procuring activity for the matrix resin
which is to be used.  Normal values are 8,500 psi for epoxy and 7,000 psi for
polyester resin matrices.
8

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