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HT-2000 PTFE Coated Fiberglass Curtains
PTFE Teflon Coated Fiberglass Curtains for Chemical-Resistant High Heat Applications
The Steel Guard Safety HT-2000 is a PTFE (Teflon) coated fiberglass high temperature curtain built for industrial environments that combine elevated heat with chemical exposure, moisture, or weather. Where the HT-1000 is designed for welding and heat shielding applications, the HT-2000 addresses a more specific need: heat curtain applications that also require chemical and weather resistance that standard acrylic coated fiberglass cannot provide.
The HT-2000 uses a gray fiberglass base at 34 oz / .035 inch thick, with a fluorocarbon (PTFE) impregnated coating applied to the fiberglass. This curtain is flexible, used on our track and roller system as a moveable or stationary barrier, and is available with pockets for chain, high heat velcro, extra grommets, and cut-outs.
HT-2000 Specifications
• Material: Fluorocarbon (PTFE) impregnated coated fiberglass
• Color: Gray — 34 oz / .035 in thick
• Temperature Rating: 600°F constant, 800°F intermittent
• Details: Sewn and hemmed with extra high heat thread. Grommets set every 12 inches on center
• Uses: Welding heat shield to block sparks, spatter, and flash. Excellent for chemical and weather resistant applications
• Insulated: No
• Reflective: No
• Certifications: NFPA-701 Certified Flame Retardant
When to Choose the HT-2000 Over the HT-1000
The HT-2000 is the right choice when your application involves:
• Chemical exposure or corrosive environments alongside high heat
• Outdoor or semi-outdoor installations subject to weather and moisture
• Processes involving chemical vapors, solvents, or wash-down environments
• Any situation where the PTFE coating’s non-stick properties are operationally beneficial
If chemical resistance is not a requirement and your temperature is at or below 1000°F, the HT-1000 Acrylic Coated Fiberglass Curtain is the more cost-effective option. For applications above 600°F requiring chemical resistance, contact our team to discuss material options. Browse our full High Temperature Curtains line or return to Industrial Heat Resistant Curtains for the complete category. Request a quote at 1-800-347-8368 or online here.
HT-2000 Material Specifications
| Property | Value | Test Method |
|---|---|---|
| Material | Fluorocarbon impregnated and coated fiberglass | — |
| Weave | Satin | — |
| Weight | 16.7 oz/sq yd | ASTM D-3776 |
| Thickness | 0.017″ | ASTM D-1777 |
| Continuous service temperature | 500°F | — |
| Intermittent | 600°F | — |
| Low temperature limit | -150°F | — |
| Base fabric limit | 1000°F E-glass | — |
| Limiting layer | PTFE coating | — |
| Tensile strength, warp | 423 lbs/in | ASTM D-5034 |
| Tensile strength, fill | 308 lbs/in | ASTM D-5034 |
| Trapezoidal tear, warp and fill | 25 lbs | ASTM D-5587 |
| Flame resistance | UL 94 V-0 | UL 94 |
| Vertical flame, char length | 1″ maximum | ASTM D-6413 |
| Vertical flame, afterglow | 1 second | ASTM D-6413 |
| Vertical flame, flame out | 1 second | ASTM D-6413 |
| UV resistance | 1000 hours, no change in tensile | ASTM G-154 |
| Silicone content | None | — |
| Color | Gray | — |
| FDA food contact compliance | No — food grade available separately | — |
Curtain Construction
| Component | Specification |
|---|---|
| Thread | Stainless steel |
| Grommet spacing | 12 in on center, top, with reinforcement |
| Mounting | Track systems or fixed — no static-only restriction |
| Optional | Chain bottom, track and trolley hardware |
| Standard heights | 8 to 25 feet; larger available |
| Maximum width | No limit — built to opening |
Material Composition Note
PTFE is a fluoropolymer and belongs to the PFAS family of compounds. Facilities operating under a PFAS reduction or elimination program should factor that into material selection. For applications where contamination control is the requirement but PTFE is not acceptable, contact us to discuss alternatives.
The assembly is rated to its limiting layer. The E-glass substrate holds 1000°F, but PTFE begins to decompose above roughly 660°F and is not run continuously above 500°F, so that is the number the curtain carries. Manufacturer data sheets are available on request.
The key difference is chemical resistance. PTFE (polytetrafluoroethylene, commonly known by the brand name Teflon) is highly resistant to a wide range of chemicals, solvents, and corrosive agents. It also resists moisture and weathering better than acrylic coatings. The trade-off is temperature rating: the HT-2000 is rated to 600°F, while the HT-1000 acrylic coated option handles up to 1000°F. For applications where chemical resistance is the primary need alongside heat protection, the HT-2000 is the appropriate choice.
The HT-2000 is rated for 600°F constant and 800°F intermittent exposure. For applications requiring higher temperature ratings, our HT-3000, HT-4000, and HT-5000 silica-based systems handle continuous service up to 2000°F and intermittent exposure to 3000°F.
Yes — all Steel Guard Safety high temperature curtains are custom manufactured to your specifications. Contact us at 1-800-347-8368 or request a quote online to begin the design process.
Yes. The PTFE coating provides weather and moisture resistance that makes the HT-2000 well suited for semi-outdoor or outdoor industrial installations where the curtain will be exposed to environmental elements in addition to heat.
