IN A WORLD OF SHORTCUTS, WE DON'T™
HT-5000 Silicone Quilted Molten Splash Curtain
Multi-Layer Molten Splash Curtain Rated to 3000°F Intermittent for Foundry & Extreme Heat Applications
The Steel Guard Safety HT-5000 is the most specialized curtain in our high temperature product line — a multi-layer, silicone quilted construction engineered specifically for environments where molten splash and extreme radiant heat are simultaneous hazards. While the HT-3000 and HT-4000 address extreme temperature blocking and reflection, the HT-5000 addresses the additional mechanical challenge of shedding molten metal splash while maintaining structural integrity and thermal insulation performance.
The HT-5000 consists of two outer layers of silicone impregnated fiberglass with an interior layer of E-glass insulation — quilted together to create a unified, thermo-insulating composite curtain. The silicone impregnation on the outer layers provides both the heat resistance and the non-stick surface that allows molten splash to shed rather than penetrate or adhere to the curtain face. The curtain is sewn with extra high heat thread, grommets are set every 12 inches on center, and the system is designed to isolate a variety of processes including furnaces, ovens, and any equipment that produces molten substances.
HT-5000 Specifications
• Material: Silicone impregnated fiberglass (2 outer layers) with E-glass insulation interior layer — quilted composite
• Total Thickness: .78 inch (Gray 18 oz silicone impregnated fiberglass x 2 front and back, with interior E-glass insulation)
• Temperature Rating: 2000°F constant, 3000°F intermittent
• Details: Sewn and hemmed with extra high heat thread. Grommets set every 12 inches on center. Reinforced along hem lines
• Uses: Molten splash barrier, furnace curtain, foundry heat isolation, extreme heat work area separation
• Insulated: Yes — E-glass interior insulation layer
• Reflective: Yes — various heat shield applications for reflection
• Chemical Resistance: Excellent
• Certifications: NFPA-701 Certified Flame Retardant
Molten Splash Environments: Why the HT-5000
In foundry, coke oven, and metal processing environments, curtains face a risk that temperature ratings alone do not address: molten splash impact. When molten metal or slag contacts a standard curtain, it can penetrate, adhere, or cause localized structural failure even if the material’s rated temperature is technically sufficient. The HT-5000’s silicone impregnated outer layers are designed to shed molten splash — allowing droplets to bead and fall away rather than burn through. The quilted E-glass core then provides the insulating mass to prevent heat transfer to the protected side.
The HT-5000 is also an excellent choice for:
• Coke furnace and foundry furnace opening curtains
• Isolation of ovens, equipment, and processes that produce molten materials
• Work area separation in extreme radiant heat environments
• Applications requiring both chemical resistance and molten splash protection
For applications that do not involve molten splash, the HT-3000 High Silica Cloth Curtain or HT-4000 Aluminized Silica Cloth Curtain may be more appropriate. Browse the full High Temperature Curtains line or return to Industrial Heat Resistant Curtains. Request a quote at 1-800-347-8368 or online here.
IMAGE 1 — Main product shot (quilted silicone curtain panel at furnace/foundry) HT-5000 silicone quilted molten splash curtain, multi-layer industrial furnace curtain rated to 2000°F with E-glass insulation core IMAGE 2 — Material close-up or secondary application shot Silicone impregnated fiberglass molten splash curtain material, quilted composite heat barrier for foundry and extreme temperature environments
The HT-5000’s outer layers are silicone impregnated fiberglass. The silicone impregnation creates a surface that allows molten metal splash to bead and shed rather than penetrate or adhere to the curtain. Combined with the quilted E-glass insulation core, the HT-5000 provides both a mechanical shed surface and thermal mass to stop heat transfer — which is why it is specified for foundry, coke oven, and metal processing environments where molten splash is a regular hazard.
The HT-5000 is rated for 2000°F constant service and 3000°F intermittent exposure, matching the HT-3000 and HT-4000 at the top of our temperature range. The multi-layer quilted construction provides additional insulation performance compared to single-layer curtains at the same temperature rating.
The total thickness of the HT-5000 is approximately .78 inches. It consists of two layers of 18 oz silicone impregnated fiberglass (front and back) with the E-glass insulation layer quilted between them.
Yes — coke furnace heat containment is one of the primary design use cases for the HT-5000. The combination of extreme temperature resistance, molten splash shedding, and insulation performance addresses the specific hazards of coke oven environments. Contact our team at 1-800-347-8368 to discuss your specific furnace dimensions and operating conditions.
Both are rated to 3000°F intermittent. The HT-4000 uses a single aluminized silica cloth layer optimized for radiant heat reflection. The HT-5000 uses a three-layer quilted silicone composite construction optimized for molten splash resistance and thermal insulation. For pure radiant heat reflection, the HT-4000 is the right choice. For molten splash environments or where insulation depth is the priority, the HT-5000 is specified.
