Fiberglass Structural Shapes: Typical Coupon Properties

Coupon tests are performed in accordance with designated ASTM Tests.

Mechanical Properties	ASTM	UNITS	VALUE
Tensile Strength, LW	D-638	psi	30,000
Tensile Strength, CW	D-638	psi	7,000
Tensile Modulus, LW	D-638	10 6 psi	2.5
Tensile Modulus, CW	D-638	10 6 psi	0.8
Compressive Strength, LW	D-695	psi	30,000
Compressive Strength, CW	D-695	psi	15,000
Compressive Modulus, LW	D-695	10 6 psi	2.5
Compressive Modulus, CW	D-695	10 6 psi	1.0
Flexural Strength, LW	D-790	psi	30,000
Flexural Strength, CW	D-790	psi	10,000
Flexural Modulus, LW	D-790	10 6 psi	1.8
Flexural Modulus, CW	D-790	10 6 psi	0.8
Modulus of Elasticity, E	Full Section	10 6 psi	2.8
Shear Modulus	--------	10 6 psi	0.450
Short Beam Shear	D-2344	psi	4,500
Punch Shear	D-732	psi	10,000
Bearing Strength, LW	D-953	psi	30,000
Notched Izod Impact, LW	D-256	ft-lbs/in	25
Notched Izod Impact, CW	D-256	ft-lbs/in	4

Physical Properties	ASTM	UNITS	VALUE
Barcol Hardness	D-2583	--------	45
24 Hour Water Absorption	D-570	% max	0.45
Density	D-792	lbs/in 3	.062-0.70
Coefficient of Thermal Expansion, LW	D-696	10 -6 in/in/°C	8

Electrical Properties	ASTM	UNITS	VALUE
Arc Resistance, LW	D-495	seconds	120
Dielectric Strength, LW	D-149	kv/in	35
Dielectric Strength, PF	D-149	volts/mil	200
Dielectric Constant, PF	D-150	@60hz	5

Polyester and Vinylester Fire Retardant Structural Profiles:

Flammability Properties	ASTM	UNITS	VALUE
Tunnel Test	E-84	Flame Spread	25 max
Flammability	D-635	--------	Nonburning
UL	94	--------
NBS Smoke Chamber	E-662	Smoke Density

LW = Lengthwise
CW = Crosswise
PF = Perpendicular to Laminate Face