Design Engineering Heat Sheath™ Aluminized Heat-Reflective Sleeving 1" x 36" — 2000°F Radiant Reflection, 500°F Contact Resistance

Design Engineering Heat Sheath™ Aluminized Sleeving (1" x 36") is a slip-on, heavy-duty thermal sleeve that reflects radiant heat and shields hoses, wires, and fluid lines from extreme temperatures, abrasion, and contaminants.

Heat Sheath™ combines a 19 oz high-temperature fiberglass core with an aluminized outer layer and aramid-reinforced stitching to deliver rugged thermal and abrasion protection for automotive and industrial applications. Engineered to reflect radiant heat up to 2000°F while tolerating direct contact heat to 500°F, this sleeving helps preserve line integrity, reduce heat soak, and extend service life in tight engine bays, turbocharged systems, and other hot zones. It resists oil, fuel, chemicals, dirt, and road debris and installs easily as a slip-on wrap around existing hoses and cables. Proudly made in the USA, it is designed to protect components — not to be applied directly to exhaust manifolds or pipes.

How does this sleeving reduce heat exposure for hoses and wiring?

Heat Sheath™ uses an aluminized exterior to reflect radiant heat away from protected components while the fiberglass core provides insulating bulk. This combination lowers the amount of heat transferred to hoses and wires, helping them stay cooler under high-temperature conditions.

• Reflects radiant heat up to 2000°F with aluminized outer layer.
• Fiberglass insulation reduces conductive heat transfer.
• Withstands direct heat exposure up to 500°F.

Will it hold up against abrasion, oils, and chemicals in an engine bay?

Yes — the sleeving is constructed for rough environments. The aluminized jacket and aramid-reinforced seam deliver strong abrasion resistance, and the materials are formulated to resist contamination from oils, fuels, and common automotive chemicals.

• Aramid fiber thread reinforcement at seams for tear resistance.
• Outer layer repels oil, dirt, and road grime to protect underlying lines.
• Durable construction meant for repeated exposure in automotive settings.

How simple is installation and sizing for a typical repair or upgrade?

Installation is straightforward: disconnect the line if needed, cut the sleeving to length, slip it over the hose or cable, and reinstall the connection. The 1" internal diameter is sized for many common hoses and lines; trim-to-fit for custom runs.

• Slip-on design—no adhesive or special tools required.
• Cut-to-length for precise coverage of sections or full runs.
• 1" x 36" size fits many lines; can be doubled for larger bundles.

Are there any safety or application limits I should know about?

Heat Sheath™ provides excellent thermal and abrasion protection but is not intended to be mounted directly on exhaust pipes or components that exceed its direct heat rating. Always follow vehicle manufacturer guidance for component clearances and use the sleeving to shield nearby hoses, cables, and sensors.

• Not recommended for direct contact with exhaust manifolds or pipes.
• Designed to protect adjacent lines from radiant and convective heat.
• Check fit and clearance in confined engine compartments.

Who is this for: Heat Sheath™ is aimed at mechanics, fabricators, racers, fleet technicians, and DIY enthusiasts who need reliable, easy-to-install thermal and abrasion protection for hoses, fuel lines, wiring harnesses, and fluid lines. It is particularly useful in turbocharged or high-heat installations, custom engine builds, off-road vehicles, and industrial equipment where heat, abrasion, and contaminants threaten component life. Choose this sleeving when you want heavy-duty, flame-resistant coverage without complex installation.