Welding Blankets — Prices and Suppliers in Thailand 2026 — Fiberglass / Silica / Ceramic

In metal welding, cutting, grinding, and any operation that produces sparks or high heat, the welding blanket is the most important protective layer for personnel, equipment, and surrounding structures.

Choosing the right welding blanket for the job is not easy, because the market offers many types at many price points with widely varying quality. This article helps buyers understand the differences, current market prices, and how to buy a product that is both cost-effective and safe.

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How Many Types of Welding Blanket Are There?

Welding blankets in the Thai market are divided into 3 main types according to the material they are woven from:

1. Fiberglass

The most basic material, made from E-glass or C-glass fibers woven into a sheet. The cheapest of the three, it withstands temperatures of approximately 500–550°C continuously.

Suitable for: general MIG/MAG welding, steel cutting, splatter protection — shielding equipment and cables from flying sparks

2. Silica

Woven from High-Silica fibers (SiO₂ ≥ 96%), it withstands temperatures significantly higher than Fiberglass, up to 900–1,000°C continuously, and can withstand a short arc flash up to 1,600°C.

Suitable for: TIG welding, high-energy arc welding, work near metal casting furnaces, and work involving molten metal splash

3. Ceramic

The top material in the group, woven from ceramic fibers (Aluminosilicate or Bio-Soluble Ceramic), withstanding the highest temperatures up to 1,260°C continuously. Used in heavy industry and applications requiring high-grade heat insulation.

Suitable for: smelting furnaces, kilns, steel mills, casting processes, and high-temperature petrochemical work

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Comparison Table of the 3 Types of Welding Blanket

Property	Fiberglass	Silica	Ceramic
Material	E-glass / C-glass ≥ 70% SiO₂	High-Silica ≥ 96% SiO₂	Aluminosilicate / Bio-Soluble
Continuous temperature resistance	500–550°C	900–1,000°C	1,100–1,260°C
Short-term (flash) temperature resistance	~800°C	~1,600°C	~1,600°C+
Approximate price (1×1 m)	300–600 baht	800–1,800 baht	1,500–4,000 baht
Weight	Light	Medium	Heaviest
Flexibility	Good	Good	Medium–low
Reusable	Yes (limited)	Yes	Yes (if undamaged)
Main standards	EN 1869, NFPA 701	EN 1869, FM4950	ASTM C610, ISO 10635

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Welding Blanket Prices in the Thai Market 2026

Prices depend on material, size, thickness, and brand. Below are reference price ranges for the Thai market:

Fiberglass Welding Blanket

Size	Weight per m²	Approximate price (baht/sheet)
1 × 1 meter	600 g/m²	300–500
1 × 2 meter	600 g/m²	550–900
2 × 2 meter	600 g/m²	1,000–1,600
2 × 3 meter	900 g/m²	1,800–2,800

Silica Welding Blanket

Size	Weight per m²	Approximate price (baht/sheet)
1 × 1 meter	1,000 g/m²	800–1,400
1 × 2 meter	1,000 g/m²	1,400–2,500
2 × 2 meter	1,200 g/m²	2,500–4,500
Roll (30 m long)	1,000 g/m²	Special price — inquire

Ceramic Blanket / Ceramic Fiber Blanket

Size	Thickness	Approximate price (baht/sheet)
600 × 900 mm	25 mm (1 inch)	1,500–2,500
Roll 1 m × 7.2 m	50 mm (2 inch)	4,500–8,000
1 × 2 meter (Bio-Soluble)	25 mm	2,200–4,000

Note: The prices above are retail prices. Bulk-lot orders qualify for special pricing — inquire with the sales department.

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How to Choose a Welding Blanket Suited to the Job

Basic Selection Rule

The maximum process temperature is the primary factor:

• Below 550°C (general MIG/MAG welding, general plasma cutting) → Fiberglass is sufficient and the most cost-effective
• 550–1,000°C (TIG welding, high arc flash, work near smelting furnaces) → Silica is required
• Above 1,000°C (kilns, steel mills, casting, petrochemical) → Ceramic only

Steps for Choosing the Size

1. Measure the area to be covered — the blanket must extend beyond the work edge by at least 30 cm on every side.
2. Consider reuse — for one-time jobs, use the cheaper Fiberglass; for recurring jobs, investing in Silica is more worthwhile in the long run.
3. Check whether it must be hung or laid — long-term suspended applications require a blanket with greater mechanical strength (Silica > Fiberglass).

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Standards to Know Before Buying

EN 1869:2019 — European Standard for Fire Blankets

EN 1869 specifies testing requirements for fire blankets, including welding blankets in certain applications, covering:

• Resistance to direct flame
• Ability to extinguish small fires (for fire blankets)
• Marking and packaging requirements

NFPA 701 — Standard for Flame Propagation Testing in Textiles

NFPA 701 specifies flame-propagation test methods for textiles and films. Used as a reference for welding blankets used in buildings and high-risk areas.

FM 4950 — Factory Mutual Standard

FM Global sets the FM 4950 standard for thermal barrier materials. Welding blankets that pass FM Approval are considered to have fire-resistance and heat-barrier properties at a level acceptable for areas insured by FM Global.

OSHA 1910.252 — Welding Safety Requirements

OSHA requires that welding, cutting, and grinding work areas have appropriate protection, including the use of protective blankets to prevent sparks from flying onto flammable materials or personnel in the vicinity.

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Standard Sizes Available in Thailand

Blanket size (width × length)	Common use
0.5 × 0.5 meter	Protecting small points, cables, valves
1 × 1 meter	General welding, pipe protection
1 × 2 meter	Under-vehicle work, in-pipe work, protecting wide floors
1.5 × 1.5 meter	Construction work, ship repair
2 × 2 meter	Medium-sized structural welding
2 × 3 meter	Large structural work, factories
Roll (30–50 m long)	Cut to the required size

Sahawatthanakit imports welding blankets from manufacturers certified to ISO standards and holding EN 1869 test certificates — a Test Report can be requested for every item.

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Common Mistakes When Buying

1. Choosing Fiberglass for a Job That Requires Silica

Many factories buy Fiberglass because it is cheap but use it on high-energy arc welding. The result is that the blanket deteriorates quickly, ending up costing more in frequent repurchases than if Silica had been invested in from the start.

2. Buying a Size Too Small for the Job

A welding blanket must fully cover the work area with a margin. A blanket that is too small leaves gaps for sparks to pass through.

3. Not Checking Lot Number and Documentation

Low-quality welding blankets from unreliable sources are mixed into the market. Always request a Test Certificate and SDS.

4. Layering to Substitute for a Higher Grade

Stacking 2–3 layers of Fiberglass does not provide a result equivalent to a single layer of Silica, because the maximum temperature resistance of each fiber type is a fixed limit.

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Maintenance and Service Life

• Fiberglass: typical service life of 6–18 months in general welding; inspect for tears, holes, or loose fibers before every use.
• Silica: more durable, with a service life of 2–5 years in normal use, but beware of oil/chemical contamination that reduces its properties.
• Ceramic: long service life, but more brittle when degraded; must be stored in a dry place and protected from impact.

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Ordering and Price Inquiries

Sahawatthanakit (1988) Co., Ltd. distributes welding blankets nationwide, with tax invoices.

• Tel: 02-096-2118 / 061-541-6939 (Khun Chin)
• Email: info@sahawatthanakit1988.com
• LINE: @sahawatt1988
• Web: sahawatthanakit1988.com
• Monday–Saturday 08:30–17:30
• Nationwide delivery | Express delivery to Bangkok / Nonthaburi / Pathum Thani

Provide the size, quantity, and type of work to receive advice from our engineering team and a quotation within 24 hours.