Technical Foundation
What Is a Welding Blankets, Curtains and Screen?
Welding blankets, curtains and screens contain sparks, spatter and slag around a weld cell, and where colored for the purpose, filter arc radiation to protect nearby workers from flash burn and eye injury. Blankets are flexible material draped or laid over equipment and flammable surfaces near the weld to prevent spark ignition; curtains hang on a frame or track to enclose a work area; screens are rigid, often wheeled, portable barriers for temporary setups.
Material selection follows the heat and spark exposure: fiberglass fabric handles continuous high heat and is common for blankets draped directly over equipment, while vinyl-laminate curtain panels (commonly amber, green or dark) are rated to filter specific wavelengths of arc radiation for eye protection at a distance rather than direct spark contact, and leather is used where the barrier is subject to direct, repeated spark and slag impact such as at a grinding or cutting station.
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| Spec | What It Means | Why It Matters |
|---|---|---|
| Material | Fiberglass, leather, vinyl-laminate, or coated fabric | Determines heat tolerance and whether the barrier is meant for direct spark contact or radiation filtering |
| Temperature Rating | Continuous and intermittent exposure temperature, °F | Must exceed the expected spark and radiant heat exposure for the process and duty cycle |
| Panel/Curtain Color | Amber, green, dark green, clear per ANSI arc-filtering spec | Different colors filter different arc radiation wavelengths; color choice affects visibility and protection level |
| Size/Panel Configuration | Standard blanket sizes or curtain panel dimensions, frame-mounted | Sized to fully enclose the work cell or cover the equipment/surface at risk |
| Grommets & Mounting | Brass grommets, frame clips, or curtain track hardware | Determines how the barrier is hung, secured or reconfigured around variable work areas |
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Applications
Where Welding Blankets, Curtains and Screens Get Used
Welding barriers are specified anywhere sparks, spatter or arc radiation could reach flammable material, equipment or personnel not directly involved in the weld.
Structural Steel Welding
Fiberglass blankets draped over adjacent equipment and flammable surfaces during overhead and out-of-position welding.
Fabrication Shop Weld Cells
Curtain-enclosed welding booths protecting nearby workers from arc flash in shared shop floor space.
Pipeline & Field Welding
Portable wheeled screens providing quick spark and arc containment at temporary field welding setups.
Shipbuilding & Heavy Fabrication
Heavy-duty fiberglass blankets and curtains rated for extended high-heat exposure during large structural welds.
Maintenance & Repair Welding
Portable screens deployed around a repair weld in an active production area to protect passing personnel.
Grinding & Cutting Stations
Leather spark blankets protecting equipment and surfaces from direct spark and slag impact during grinding operations.
FAQ
Welding Blankets, Curtains and Screens Questions, Answered
What's the difference between a welding blanket and a welding curtain?
A welding blanket is a flexible sheet of fiberglass or similar material draped directly over equipment, floors or flammable surfaces to prevent spark ignition on contact. A welding curtain hangs on a frame or track to form a vertical barrier enclosing a work cell, primarily to block arc radiation and flying spatter from reaching nearby workers rather than to sit against a hot surface.
What curtain color should I use?
Curtain color corresponds to the wavelength of arc radiation it's rated to filter — amber and green are common general-purpose choices, while some processes call out a specific color per the manufacturer's ANSI-referenced rating. Match the curtain to the welding process and the manufacturer's stated radiation-filtering spec, not just visual preference.
What temperature rating do I need for a welding blanket?
Match the blanket's continuous and intermittent temperature rating to the heat and spark exposure of the process — higher-amperage processes and applications where the blanket sits close to or in direct spark contact need a higher-rated fiberglass weight. Check the manufacturer's published rating rather than assuming all fiberglass blankets perform equally.
Can a welding curtain replace welding safety glasses or a helmet?
No — curtains and screens reduce arc radiation exposure for bystanders and nearby workers at a distance, but they are not a substitute for proper eye and face protection for anyone performing or directly observing the weld. Always pair curtain barriers with appropriate PPE for anyone working in or near the enclosed cell.
How should welding curtains be mounted for a shared shop floor?
Frame-mounted curtains on a track system allow the enclosure to be reconfigured as work cells change, while fixed grommeted curtains can be hung from overhead structure or a dedicated frame. Position curtains to fully enclose the weld arc from sightlines of adjacent workstations, accounting for reflected arc radiation off nearby surfaces, not just direct line of sight.
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