Sandwich Panel GFRP/PVC Foam Core

Verifiedcomposite
· GFRP Foam Sandwich· Divinycell Sandwich

A lightweight sandwich composite consisting of thin E-glass/polyester skins bonded to a rigid PVC foam core (Divinycell H80), manufactured via vacuum-assisted resin transfer molding (VARTM) at room temperature. This class of material combines the corrosion resistance and workability of polyester/vinylester matrices with the structural efficiency of closed-cell foam, creating a high strength-to-weight panel suitable for marine and aerospace environments. Engineers select this sandwich construction when bending stiffness and impact resistance are critical but weight must be minimized, making it a practical alternative to solid laminates or heavier structural foams in cost-sensitive applications.

Marine hulls and deckingWind turbine blade coresAerospace interior panelsLightweight structural bulkheadsHigh-performance boat constructionModular building panels

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
Composite Layup3 plies · 21.00 mm total

Fiber Direction

+0°
Drag to rotate · Scroll to zoom · → = 0° reference
FiberE-Glass Skins
MatrixPolyester/Vinylester Skins + PVC Foam Core
ProcessVacuum infusion (VARTM)
CureRoom temp + postcure

Ply Schedule

+0°E-Glass/Polyester Skin0.5 mm
+0°PVC Foam Core (Divinycell H80)20 mm
+0°E-Glass/Polyester Skin0.5 mm

Laminate Code

[0/0/0]T

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

PropertyValueUnitConditionsSource
Young's Modulus(E)
1,160.3
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Maximum Service Temperature(Tmax)
157.7
°F—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.01987
lb/in³—
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.