How to Buy Certified Welding Fire Blankets: EN 1869 and What It Actually Means

The Problem With "Certified" Welding Blankets

Two blankets look identical. One costs ฿800 per square metre, the other ฿400. Both claim EN 1869 compliance. The difference? One passed an accredited third-party test. The other has a sticker applied by the importer.

For procurement officers sourcing fire protection materials for Thai factories, understanding what EN 1869 actually requires — and how to verify it — prevents both safety failures and wasted budget.

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What EN 1869:2019 Tests

EN 1869 is the European standard for fire blankets. The 2019 revision tightened performance requirements significantly over the 1997 version.

The standard evaluates three properties:

1. Fire extinguishing effectiveness The blanket is used to extinguish a standardised Class F cooking oil fire (pan fire simulation). The blanket must fully suppress the fire within a defined time.

2. Heat transfer protection Temperature sensors measure how much heat passes through the blanket to the side facing the user. This matters when a blanket is used to wrap a person evacuating through a fire zone.

3. Post-use integrity After fire suppression, the blanket must hold together — it must not fragment, which could leave burning material exposed.

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EN 1869 Class 1, 2 and 3

Class	Intended Use	Minimum Size
Class 1	Kitchen / small domestic fires	≥ 1.0 × 1.0 m
Class 2	Commercial kitchens, light industrial	≥ 1.2 × 1.2 m
Class 3	Full-body protection for evacuation	≥ 1.8 × 1.8 m

Important distinction for factories: EN 1869 classifies fire blankets for fire suppression. Most industrial welding protection blankets are weld-area protection products — a separate application. A blanket spec should reference both EN 1869 (if applicable) and the welding-specific performance test (e.g., NFPA 701 for flame spread).

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How to Verify a Real Certificate

Genuine certification includes:

✓ Name and number of the Notified Body (NB) — e.g., TÜV SÜD (NB 0123), Bureau Veritas, SGS ✓ Specific standard version: "EN 1869:2019" not just "EN 1869" ✓ Test report number with accreditation number of testing lab ✓ Declaration of Conformity (DoC) matching the specific product SKU ✓ Certificate expiry date within validity period

Red flags:

✗ "Meets EN 1869" with no test report number ✗ CE marking with no DoC document available ✗ Notified Body number not found at ec.europa.eu/growth/tools-databases/nando ✗ Certificate covers a different product than what's being supplied ✗ Price 40%+ below market with no explanation

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Material Selection: Match the Blanket to the Temperature

Material	Max Temp	Relative Cost	Best For
Fiberglass	550°C	฿	MIG/MAG welding, grinding sparks, general welding
Fiberglass + Vermiculite	550°C	฿฿	Heavy slag and spatter
Fiberglass + Silicone	550°C	฿฿	Combined chemical and spark protection
Silica (>96% SiO₂)	1,000°C	฿฿฿	TIG/arc welding, foundry, oxy-fuel cutting
Ceramic Fiber	1,260°C	฿฿฿฿	Furnace curtains, kilns, continuous high-temperature
Bio-Soluble Ceramic (BSC)	1,260°C	฿฿฿฿	High-temp applications where RCF (refractory ceramic fiber) exposure is regulated

Practical guidance for most Thai factories: Silica 1,000°C covers MIG, TIG, and arc applications at a price point that's reasonable. Fiberglass is adequate for light MIG/MAG work where maximum temperature rarely exceeds 400°C.

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Standard Sizes and Custom Options

Standard stock sizes: 1×1m, 1×2m, 2×2m, 1×50m roll Custom widths: up to 2m standard, wider available by order Custom cuts: available for specific equipment shrouds or pipeline wrap applications

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Procurement Checklist

Before ordering — request these documents:

• EN 1869:2019 test report from accredited lab
• DoC (Declaration of Conformity)
• SiO₂ content % specification (silica blankets must be >96%)
• Weight g/m² specification (thinner = lower performance)
• Safety Data Sheet (SDS) for any coating (silicone, vermiculite, PTFE)

On receipt inspection:

• Dimensions within ±2% of order spec
• No holes, tears, or scorch marks in the fabric
• Edges neatly finished — no loose fibres that indicate poor quality control

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Request certificates and samples: +66 2-096-2118 | +66 83-494-6958 Sahawatthanakit (1988) Co., Ltd. — Nonthaburi, Thailand Request a Quote →