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Texfire’s Weld S1 flame retardant blanket has been designed and manufactured by Texfire with WelS1 fabric. It’s a fiberglass blanket with one coated side with a special silicone for high temperatures. This special finish avoids incandescent particles from staying embedded in the blanket, as it happens with standard fiberglass blankets. Thanks to this feature, WELS1 welding blanket’s useful life gets increased notably, because incandescent projections are not stuck to the blanket, not carbonising Eglass fibers from the Wels1 fabric and are finally placed on the floor, losing its temperature very fast.

Weld S1 welding blanket is finished with a black bies on its perimeter to avoid it frays, tailored with Nomex® black colored flame retardant thread, it also incorporates 4 metallic grommets, one on each corner, in order to install it or hang it as a curtain.


This welding blanket is light, flexible and impermeable (water, greases and oils) and resists temperatures of 250ºC in continuous works and peak temperatures up to 600ºC. Comparing it to standard fiberglass blankets, Weld S1 flame retardant blanket stands out because of its long useful life and its easy management. Available in 2 sizes:

  • 150x100 cm. (750 gr.)
  • 200x150 cm. (1.300 gr.)

Weld S1 welding blanket has been designed to contain impacts from sparks and incandescent projections caused in soft or medium welding operations, like TIG, MIG, and electrode. It is also able to withstand melted metal slashes from cutting and grinding. In order to achieve the blanket’s maximum result, Texfire recommends using Weld S1 welding blanket vertically or diagonally, hanf or directly over the surface to protect. It’s important to avoid placing the blanket completely horizontal, because oversized projections can pierce the blanket, if falling over it and stay static during the temperature drop.

WelS1 fabric used to tailor the welding blanket, is certified in 2020 with regulation UNE 23727 - Reaction to fire of construction materials - obtaining an M1 classification. Weld S1 blanket has also been tested internally according regulation EN ISO 9150 - Behavior of materials over the impact of small splashes of melted metal - obtaining a Class 1 classification.


  • Fabric’s thickness 0,4 mm.
  • Repels impacts from incandescent splashes of metals and other materials.
  • WELS1 fabric is impermeable to liquids and gases.
  • Light and flexible, easy to handle, use and storage.
  • Suitable for indoors use.
  • Totally opaque, suitable to protect elements.
  • Free of asbestos.
  • Finished with textile bies and tailored with Nomex® black colored flame retardant thread.
  • Includes metallic grommets on each cornet, to ease its placement.
  • WELS1 fabric is inherently flame retardant, it does not burn, nor melts or drips.
  • Intrinsic features in the fibers, their features don’t decrease over time.

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Limited special offer
€40.80 €43.80
Fabric data sheet

Data sheet

Fire resistance
UNE 23727 | M1
Convective heat
ISO 9151 | B1
Radiant heat
ISO 6942 | C1
Traction resistance
EN 13934-1 | Warp 2700 N Weft 1700 N
Flame propagation
ISO 15025 | A1-A2
Water penetration resistance
EN 20811 | 100
Resistance welding and cutting projections
EN 9150 | CLASS 1
Heat resistance
ISO 17493 | PASS


  • Flame retardant blanket for MIG welding.
  • Flame retardant blanket for TIG welding.
  • Flame retardant blanket for Electrode welding.
  • Flame retardant blanket for radial cutting tasks.


  • Welding Workshops.
  • Automotive.
  • Naval sector and shipyards.
  • Construction sector and subcontractors.
  • Foundries, metal and steel industries.
  • Mechanics workshops.
  • Machinery manufacturers.
  • Boilermaking industries.
  • Petrochemical and pharmaceutical sectors.


  • Always place the black silicone side in contact with incandescent projections.
  • Can be washed using a wet cloth.
  • Never use alcohols, solvents or detergents to wash it.
  • As longer the distance from the sparking source to the fabric, the better it will behave.
  • It is recommended to store it always with the elastic band, in order to extend its useful life.
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