Flame-retardant hybrid epoxy laminates cut heat release in lab fire tests
Source: MDPI (Materials), "Fire Performance, Thermal Degradation and Combustion Products of Flame-Retardant Hybrid Epoxy Composites", published 9 November 2026.
What the source says
Peer-reviewed lab study of 7 mm epoxy laminates mixing glass, carbon, aramid, basalt and flax fabrics with expandable graphite and ammonium polyphosphate, cone calorimeter tested at 35 kW/m2. Best hybrid cut total heat release to 4 MJ/m2 against 35 for glass only; all rated HB.
Allbase view
Lab laminates of hybrid epoxy released far less heat in cone calorimeter tests, at one thickness and one heat flux. HB is a basic plastics rating, not a building fire class, so nothing to act on yet.
Our reading of the paper, not a statement from the source. Checked against the paper on 10 Nov 2026.
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