DGN0.38BK

Description

Dragon Sleeve 3/8″ Black — High-Temperature Aluminium-Coated Heat Protection Sleeve

The DGN0.38BK is a Dragon Sleeve in 3/8″ (approximately 9.5 mm internal diameter) black, a high-temperature resistant sleeving product combining a fibreglass braid structure with an aluminium foil coating for radiant heat reflection in extreme motorsport engine bay environments. Dragon Sleeve is suited to small-to-medium wire bundles and sensor harness protection near moderate heat sources.

Dragon Sleeve — Construction and Performance

Dragon Sleeve uses a woven fibreglass braid as its structural foundation, providing continuous high-temperature resistance up to 260°C and above, combined with an aluminium foil coating that reflects infrared radiation away from the wiring inside. This dual-mechanism protection — conduction resistance from the fibreglass structure and radiation reflection from the aluminium coating — makes Dragon Sleeve one of the most effective heat protection products available for motorsport harness applications near exhaust manifolds, turbocharger housing, and catalytic converters. The black outer finish provides UV resistance and a professional aesthetic.

Dragon Sleeve vs FireFlex Sleeve

Both Dragon Sleeve and FireFlex (FIN series) use silicone fibreglass braid construction with similar thermal ratings. The principal differences are outer finish and closure method: FireFlex uses a silicone-coated exterior that provides a smooth, self-closing wrap-around format; Dragon Sleeve uses an aluminium-coated exterior that maximises infrared reflection particularly in direct radiated heat scenarios near bare metal exhaust components. For the most severe radiant heat environments in motorsport — such as a naturally aspirated high-revving race engine with unshielded exhaust manifolds or a turbocharged engine with close-routed harness sections — Dragon Sleeve’s aluminium outer coating provides maximum reflection of the high-intensity radiant heat from the bare metal surfaces.

Available from Arctic Performance Parts

Arctic Performance Parts stocks Dragon Sleeve from 1/8″ to 2″ to support motorsport harness heat protection across the full bundle size range. Supporting professional harness builders and motorsport workshops across Norway, Sweden, and Denmark. Lead time 1–2 weeks for quantities beyond current stock.