Radiant heat bakes fuel lines, wiring harnesses, and sensor leads from every direction under the hood, and re-routing components only goes so far. The Heatshield Products Cold-Gold Sleeve wraps around vulnerable lines and wires without requiring disassembly, blocking up to 90 percent of radiant heat and keeping temperatures manageable on components that cannot tolerate prolonged exposure.
Serious heat ratings for serious environments. The Cold-Gold Sleeve carries a continuous radiant heat rating of 1100°F and an intermittent rating of 2000°F, tested to ASTM F1939 and Mil-C-24929A standards. Those numbers reflect real-world engine bay conditions, not lab minimums.
Gold reflective finish does the heavy lifting. The high-visibility gold exterior reflects radiant heat rather than absorbing it, which keeps the sleeve itself cooler and protects whatever runs inside. The reflective surface also makes it easy to spot during inspection, so routing stays clear and organized.
Hook-and-loop closure installs without removing anything. The open-seam design with hook-and-loop fastening lets the sleeve wrap directly onto an existing line or harness in place. No disconnecting fittings, no pulling the harness, no special tools. Sealing the ends with the built-in fastener or a compatible wrap locks heat out and keeps the install clean.
An air gap maximizes effectiveness. For best results, install the sleeve with at least one inch of airspace between the sleeve and the heat source. That gap, combined with adequate airflow, lets the reflective surface work as intended and produces the largest drop in protected-component temperatures.
Product Benefits
- 90% Radiant Heat Reduction: Tested to ASTM F1939 and Mil-C-24929A for verified thermal protection.
- 1100°F Continuous Rating: Handles sustained radiant heat with an intermittent peak of 2000°F.
- Hook-and-Loop Closure: Wraps onto existing lines and harnesses without disconnecting anything.
- Gold Reflective Finish: Reflects radiant energy away from the sleeve and protected components.
- Multiple Inside Diameter Options: Available from 1/2 inch through 3 inch ID to fit a wide range of lines and harnesses.
- 3-Foot Lengths: Each piece covers a practical run of fuel line, wiring, or hose.
- Made in the USA: Manufactured domestically to Heatshield Products' quality standards.
- Vapor Lock and Wiring Protection: Helps prevent fuel vapor lock and shields sensitive wiring from heat soak.
About Heatshield Products: Heatshield Products designs and manufactures thermal management solutions in the USA, covering everything from exhaust wraps and heat sleeves to custom shielding for motorsport, military, and OEM applications. The company's product line addresses radiant, conductive, and convective heat across a broad range of industries and vehicle types.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
