IN A WORLD OF SHORTCUTS, WE DON'T™
Acrylic Coated Welding Blankets | Slag Shield Fiberglass
Steel Guard’s Slag Shield acrylic coated fiberglass welding blankets deliver medium-duty protection against sparks, spatter, and medium slag in MIG, TIG, and stick welding applications. The heavy acrylic coating applied over the fiberglass base adds abrasion resistance and improved slag shedding compared to uncoated heat cleaned fiberglass — making Slag Shield the right choice when standard fiberglass isn’t holding up but a full silicone coating isn’t required. Rated to 1,000°F and manufactured from 28 oz heavy acrylic coated fiberglass at .050 inches thick.
Slag Shield blankets are sewn with high-heat thread and include grommets set every 24″ on all sides for secure attachment in horizontal and vertical applications. All blankets meet FM Global and NFPA-701 flame retardancy certifications and are manufactured in the USA. Note — Slag Shield is not suitable for heat treating or stress relief applications. Part of the Steel Guard welding blanket lineup — compare all materials to find the right protection level for your application.
Slag Shield Acrylic Coated Welding Blanket Specifications
- Material: 28 oz heavy acrylic coated fiberglass, .050 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: Contains fiberglass — handle with safety gloves at all times
- Not suitable for: Heat treating or stress relief applications
- Ships in: 7–10 business da
Additional Information:
What the Acrylic Coating Adds
The acrylic coating on Slag Shield blankets provides meaningful performance improvements over uncoated heat cleaned fiberglass in medium-duty welding environments:
- Medium slag resistance — the acrylic surface layer helps slag bead up and roll off rather than adhering to and burning through the fiberglass base
- Improved abrasion resistance — the coating protects the fiberglass weave from physical wear when blankets are dragged, repositioned, or used in abrasive environments
- Better spatter shedding — coated surface makes it easier to shake off accumulated spatter and debris, extending blanket service life
- Enhanced flexibility — acrylic coating maintains flexibility better than uncoated fiberglass in cold shop environments
Where Slag Shield Fits in the Welding Blanket Lineup
Steel Guard manufactures fiberglass welding blankets in multiple weights and coatings. Here’s where Slag Shield fits:
- 18 oz uncoated (Weld Armor) — light to medium duty, everyday MIG/TIG/stick welding, most economical, 2–3 day ship
- 28 oz acrylic coated (Slag Shield) — medium duty, improved slag and abrasion resistance, step up from uncoated fiberglass
- 35 oz uncoated (Arc-Tex) — heavy duty, maximum fiberglass thickness, best for high-output welding and asbestos blanket replacement
- 32 oz silicone coated (Red Spark) — heavy duty with silicone rubber coating, maximum abrasion and chemical resistance, meets Mil-Y-1140C
Choose Slag Shield when your application regularly produces medium slag and your 18 oz uncoated blankets are wearing out faster than expected — but you don’t need the full silicone coating of Red Spark.
Slag Shield Acrylic Coated Welding Blanket Applications
- MIG, TIG, and stick welding with medium slag production
- Arc welding heat shield barriers in fabrication environments
- Equipment and machinery protection in abrasive welding environments
- Vertical curtain applications requiring improved slag shedding
- Pipe and structural steel welding with moderate spatter
- Floor and surface protection in medium-duty production welding
- Applications where uncoated fiberglass is wearing out too quickly
An acrylic coated fiberglass welding blanket uses a woven fiberglass base with an acrylic compound applied to the surface. The acrylic coating adds abrasion resistance, improves slag shedding, and protects the fiberglass weave from physical wear — providing better performance than uncoated fiberglass in medium-duty welding environments without the cost of a full silicone coating.
Both coatings improve on uncoated fiberglass but differ in performance level and application. Acrylic coated fiberglass (Slag Shield) provides medium-duty abrasion resistance and slag shedding at a lower cost. Silicone coated fiberglass (Red Spark) provides heavier duty abrasion resistance, superior chemical resistance, electrical insulation, and meets military specification Mil-Y-1140C — at a higher price point and longer lead time. Choose acrylic for medium-duty applications and silicone for heavy-duty or mil-spec requirements.
No — Slag Shield acrylic coated fiberglass welding blankets are not suitable for heat treating or stress relief applications. The acrylic coating is not designed for the sustained high-temperature exposure required in heat treating. For heat treating applications, our White Spark silica welding blankets with a continuous 1,800°F rating are the appropriate choice.
Slag Shield acrylic coated fiberglass welding blankets are rated to 1,000°F — the same base temperature rating as standard fiberglass. The acrylic coating improves abrasion resistance and slag shedding but does not increase the temperature rating above the fiberglass base material.
Slag Shield 28 oz acrylic coated welding blankets ship in 7–10 business days due to the additional manufacturing steps required for the acrylic coating process. For urgent requirements contact us to discuss availability and expedited options for your order.
Catalog Welding Blankets - Pg 26
Catalog Welding Blankets - Pg 27
