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The following technical information and tests are carried on a GRP specimen manufactured from general purpose unsaturated polyester resin reinforced with C-glass mat fiberglass filaments.
N.B.: Different superior mechanical or physical properties could be achieved in the case of using special purpose resins (e.g. anti-acids), or different grades and weaving patterns for the fiberglass filaments (e.g. woven rovings, 3D ..etc).

	Unit	Value	Method ASTM
Density	gr/cm3	1.42	(D-792)
Fiberglass Content	%	35
Employment Temperature Range	oC	-40 - +140
Coefficient of Thermal Conductivity	W/moK	0.22	(C-177)
Tension Resistance	MPa	123.6	(D-638)
Compression Resisitance	MPa	129.4	(D-695)
Flexural Resistance	MPa	120-140	(D-790)
Flexural Modulus	GPa	6	(D-790)
Dielectric Strength	KV/mm	30.1	(D-149)
Dielectric Constant		4	(D-150)
Dissipation Factor		0.011	(D-150)
Coefficient of Linear Thermal Expansion	oC-1	3.2x10-5	(D-696)
Water Absorption	%	0.4	(D-570)
Rockwell Hardness	HRM	98	(D-785)
Flash Ignition Temperature	oC	404.4	(D-1929)
Self-Ignition Temperature	oC	487.8	(D-1929)
Flammability	cm/min	<6	(D-635)