When a lithium-ion battery goes into thermal runaway — a charging e-forklift, a pallet of battery inventory, a bank of tools or e-mobility devices — it doesn't behave like an ordinary fire. It generates its own oxygen, resists extinguishers, and can reignite for hours. The Steel Guard Lithium Battery Fire Blanket is built to contain exactly that event: drape it over the source to stop fire spread, block radiant heat, and control smoke until the battery burns out or responders can flood it.

This is a heavy-duty, reusable containment blanket — not a thin single-use drape. It's cut and sewn in our US factory from Draft-Tex™ fabric, built on Newtex Z-Block® silicone-coated fiberglass rated 1,800°F (982°C) continuous, and constructed to the design and test parameters of DIN SPEC 91489:2024-11, the European standard for lithium-ion fire blankets. Deploy it, train with it, inspect it, and return it to service — year after year.

Available Sizes

Three stocked sizes ship in 3–5 business days. Need something in between, or larger? Use the custom calculator to build any dimension custom ev fire blankets to the same construction standard — produced in 2–3 weeks.

• 5' × 6' — device- and battery-scale containment; charging benches, tool stations, small equipment. One-piece seamless construction. $795
• 10' × 10' — pallets, larger equipment, multi-device charging areas. $1,495
• 15' × 15' — large inventory footprints and equipment banks. $2,095
• Custom size — enter width × length; priced instantly, shipped in 2–3 weeks.

Built to Be Reused

Most lithium fire blankets sold online are single-use: one deployment — real or accidental — and the blanket is scrap. Ours are engineered for a working life. In normal service you can deploy it in drills, train your team on it, inspect it, clean off oil or extinguishing water, refold it, and put it back on the wall. Only after exposure to an actual fire is it retired — at which point the coating in the contact zone has sacrificed itself to protect the glass beneath, which is exactly how it's designed to perform. Across a facility's lifetime, one reusable blanket replaces a stack of disposables.

Construction

• Body: Draft-Tex™ silicone-coated fiberglass (built on Newtex Z-Block® F-407), 1,800°F continuous rating. The 5'×6' is a single seamless panel; larger sizes use felled seams sewn with high-temperature Kevlar/stainless-core thread.
• Pulling handles: 2-inch reinforced loops on backed doublers, built and tested to a 125 kg (275 lb) shock load — not thin sewn tabs. Color-coded red on the pulling side so a two-person team knows where to grab in heavy smoke.
• Edges: hemmed and reinforced; center-of-side markers for fast two-person positioning.
• Thermal basis: benchmarked to the DIN SPEC 91489 test cycle — 23 minutes of direct flame cycling up to 1,832°F (1,000°C).

Every Blanket Ships as a Kit

Each blanket comes with a weatherproof storage bag, a document pouch, and an audit-ready documentation pack — a laminated deployment card, a serialized product record, safety information, and an inspection log. It's the paper trail your EHS program, insurer, and fire marshal actually ask for, and it's what turns a blanket in a bag into a documented, serialized piece of safety equipment. Add a wall-mounted Station Kit case to keep it deployment-ready next to your charging area.

How to Size It

A containment blanket must cover the burning object completely and lie flat on the ground at least 20 inches (0.5 m) beyond it on every side — that ground overlap is what starves the fire and blocks radiant heat. Measure your largest protected object, add roughly 40 inches to each dimension, and round up to the next size. Landing between sizes is exactly what the custom calculator is for.

Reusable Heavy-Duty vs. Single-Use Drape