GFRP E-Glass/Epoxy Quasi-Isotropic

Verifiedcomposite
· E-Glass QI· GRP QI laminate

GFRP E-Glass/Epoxy Quasi-Isotropic is a fiber-reinforced polymer composite featuring balanced fiber orientations (0°, ±45°, and 90°) in an epoxy matrix, manufactured via vacuum infusion for good void control and consistent properties in all directions. Commonly used in marine hulls, wind turbine blades, aerospace fairings, and automotive body panels where multidirectional loading and moderate service temperatures are expected; the quasi-isotropic layup trades peak strength in any single direction for reliable performance under unpredictable loading angles and complex stress states. This configuration is preferred over unidirectional or bidirectional laminates when design simplicity, impact tolerance, and cost-effective manufacturing are priorities—particularly in applications where tooling investment must be amortized across high production volumes.

marine vessel hulls and superstructureswind turbine blade constructionaerospace composite panels and fairingsautomotive body and chassis componentsgeneral-purpose structural shellshigh-volume composite fabrication

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
Composite Layup8 plies · 2.00 mm total

Fiber Direction

-45°
+0°
+45°
+90°
Drag to rotate · Scroll to zoom · → = 0° reference
FiberE-Glass
MatrixEpoxy
ProcessVacuum infusion (VARTM)
Cure80°C postcure
Vf50%

Ply Schedule

+0°E-Glass0.25 mm
+45°E-Glass0.25 mm
-45°E-Glass0.25 mm
+90°E-Glass0.25 mm
+90°E-Glass0.25 mm
-45°E-Glass0.25 mm
+45°E-Glass0.25 mm
+0°E-Glass0.25 mm

Laminate Code

[0/45/-45/90/90/-45/45/0]s

Fiber angles relative to the 0° reference direction (red arrow in 3D view). 0° = longitudinal, 90° = transverse, ±45° = shear paths.

Property OverviewNormalized to typical max values
PropertyValueUnitConditionsSource
Shear Modulus(G)
6.500
GPa—
Ultimate Tensile Strength(σUTS)
270.0
MPa—
Young's Modulus(E)
17.00
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Maximum Service Temperature(Tmax)
353
K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
1.900
kg/m³—
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.