Lab study finds seawater ageing weakens glass fibre epoxy composites
Source: Key Engineering Materials, "Finite Element Analysis of the Effect of Hygrothermal Ageing on the Mechanical Properties of Glass Fiber Reinforced Polymer Composites", published 13 November 2026.
What the source says
E-glass and epoxy composite specimens were aged in seawater at 70°C for 60 days, with moisture uptake measured to ASTM D5229 and modelled by finite elements in COMSOL. The abstract reports a significant reduction in mechanical properties from moisture ingress.
Allbase view
Small E-glass and epoxy specimens in a lab, backed by a finite element model rather than service data. Ageing at 70°C is harsher than most marine exposure, so nothing to act on yet for laminate specifications.
Our reading of the paper, not a statement from the source. Checked against the paper on 13 Nov 2026.
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