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Fiberglass Fire Blankets | Arc-Tex 35 oz Heavy Duty Welding Protection
Steel Guard’s Arc-Tex fiberglass fire blankets are engineered from 35 oz heat cleaned fiberglass — nearly double the material weight of standard 18 oz fiberglass welding blankets — for maximum protection against heavy sparks, arc flash, spatter, and radiant heat in demanding MIG, TIG, stick, and arc welding environments. At .080 inches thick and rated to 1,000°F, Arc-Tex blankets provide significantly longer service life and greater protection in high-output welding operations where standard weight fiberglass wears out quickly.
Arc-Tex 35 oz fiberglass fire blankets are also the most widely recommended modern alternative to legacy asbestos welding blankets — providing equivalent or superior heat and spark protection without the health hazards associated with asbestos fiber. All Arc-Tex blankets meet FM Global and NFPA-701 flame retardancy certifications and are manufactured in the USA. Part of the Steel Guard welding blanket lineup — compare all materials to find the right protection level for your application.
Arc-Tex 35 oz Fiberglass Fire Blanket Specifications
- Material: 35 oz heat cleaned fiberglass, .080 inch thick
- Temperature rating: 1,000°F
- Construction: Sewn with high-heat thread — grommets set every 24″ on all sides
- Size note: Finished blanket sizes run 2″–4″ shorter than nominal dimensions
- Certifications: FM Global and NFPA-701 flame retardancy certified
- Handling note: Fiberglass material — handle with gloves at all times
- Ships in: 5–7 business days
Additional Information:
35 oz vs 18 oz — Why Weight Matters
The most important decision when choosing a fiberglass welding blanket is selecting the right weight for your application. Here’s how Arc-Tex 35 oz compares to standard 18 oz fiberglass:
- Greater material density — at .080″ thick vs .035″ for 18 oz, Arc-Tex provides nearly double the physical barrier against spark penetration and spatter burn-through
- Longer service life — heavier fiberglass resists the physical wear, charring, and degradation that causes lighter blankets to fail faster in high-output welding operations
- Better heat absorption — greater mass absorbs more radiant heat before it reaches protected surfaces and equipment underneath
- Heavy slag resistance — the denser weave of 35 oz fiberglass provides better resistance to heavy slag and large spatter that would burn through 18 oz material faster
- Multiple layer heat treating — when used in layers for heat treating applications, 35 oz provides significantly better thermal retention than stacking lighter blankets
Choose 18 oz Weld Armor for everyday light to medium duty welding. Choose Arc-Tex 35 oz when your operation produces heavy spatter, large slag, or requires longer blanket service life between replacements.
Arc-Tex as an Asbestos Blanket Alternative
Many older industrial facilities still use legacy asbestos welding blankets that were common before the health risks of asbestos fiber were fully understood. Replacing asbestos blankets with modern fiberglass fire blankets is the standard practice recommended by OSHA and industrial safety organizations. Arc-Tex 35 oz fiberglass fire blankets provide equivalent or superior protection to asbestos blankets in all standard welding applications — without the carcinogenic fiber hazard associated with asbestos exposure during handling, installation, and replacement.
Arc-Tex Fiberglass Fire Blanket Applications
- Heavy duty MIG, TIG, stick, and arc welding spark and spatter protection
- High-output welding operations producing heavy slag and large spatter
- Arc flash and radiant heat shielding in structural steel fabrication
- Pipe welding protection in industrial construction environments
- Equipment and machinery protection during heavy welding operations
- Replacement for legacy asbestos welding blankets
- Heat treating applications in single or multiple layers
- Floor and surface protection in high-production welding environments
Related Welding Blanket Products
Need a lighter weight option or different material? Steel Guard also manufactures:
- Weld Armor 18 oz Fiberglass Welding Blankets — standard weight fiberglass for everyday MIG, TIG, and stick welding protection
- White Spark Silica Welding Blankets — 1,800°F rated for heat treating, foundry, and high-temperature applications
Questions about Arc-Tex fiberglass fire blankets? Call us at 1-800-347-8368 or request a quote online — our team will help you select the right blanket weight and size for your welding environment.
The primary difference is material density and durability. Arc-Tex 35 oz fiberglass is .080″ thick compared to .035″ for standard 18 oz — nearly double the physical barrier. The heavier weight provides greater resistance to spark penetration, heavy slag burn-through, and physical wear, resulting in longer service life in high-output welding environments. Both are rated to 1,000°F.
Yes — modern fiberglass fire blankets are the industry-standard replacement for legacy asbestos welding blankets. Arc-Tex 35 oz fiberglass provides equivalent or superior heat and spark protection to asbestos blankets in all standard welding applications, without the serious health hazards associated with asbestos fiber exposure. OSHA recommends replacing asbestos-containing welding blankets with modern alternatives.
Arc-Tex 35 oz fiberglass fire blankets are rated to 1,000°F — the same temperature rating as standard 18 oz fiberglass. The advantage of 35 oz is not a higher temperature rating but greater material density, durability, and resistance to burn-through from heavy slag and spatter. For applications requiring continuous service above 1,000°F, our silica or carbon fiber welding blankets provide higher temperature ratings.
Yes — Arc-Tex 35 oz fiberglass fire blankets can be used in light heat treating applications as a single layer, or with multiple layers for improved thermal retention. The heavier weight provides better heat retention than standard 18 oz fiberglass when layered. For dedicated heat treating applications requiring sustained high-temperature coverage, our White Spark silica blankets at 1,800°F continuous are the preferred choice.
Arc-Tex 35 oz fiberglass fire blankets ship in 5–7 business days compared to 2–3 days for standard 18 oz Weld Armor blankets. The heavier weight material requires additional production time for cutting, sewing, and grommet setting. For urgent requirements, contact us to discuss expedited options for your order.
