The Bulwark Nomex FR Hard Hat Liner is your essential head-protection upgrade for hazardous industrial environments. Built from inherently flame-resistant Nomex® aramid fabric and premium insulation, this liner is designed to slide comfortably under a standard safety helmet — giving you robust protection against arc flash, flash fire, sparks, and thermal hazards while maintaining comfort and mobility.
Rated HRC3 / CAT 3 with an arc-rating of E₍BT₎ ≈ 37 cal/cm², this liner delivers high-grade head protection required for heavy-duty electrical work, petrochemical, utility, oil & gas operations, and other high-risk industries. With secure chin-strap attachment and button-hole suspension compatibility, you get a secure fit even under demanding conditions. Lightweight, durable, and compliant with safety standards, the Bulwark FR Hard Hat Liner helps keep you safe — so you can focus on the job without compromise.
| Product Type | Bulwark Nomex FR Hard Hat Liner |
| Protection Level | HRC3 / CAT 3 — arc-rated hard hat liner |
| Arc Rating (EBT) | 37 cal/cm² |
| Material – Outer Shell | 4.5 oz (≈ 150 g/m²) Nomex® IIIA aramid (≈ 93% Nomex Aramid / 5% Kevlar Aramid / 2% other fiber) |
| Insulation / Lining Package | 10.0 oz FR quilted insulation — 90% aramid / 10% FR-rayon internal layer + meta-aramid lining |
| Fit / Attachment | Hook-and-loop chin strap; button-hole openings to secure to standard 4-point hard hat suspension |
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