RaceFlux Fire-Retardant Silicone Fiberglass Hose Sleeve, Sold by the Meter (3 ft)

Armor for hoses running near heat: this fire-retardant sleeve pairs a silicone outer layer with a fiberglass inner braid, protecting hoses, wires, and cables at continuous temperatures up to 500°F and intermittent exposure up to 3,000°F. In direct flame, the silicone outer layer transforms into a protective, non-flammable silica coating while the fiberglass insulates against radiant heat — the same approach used in aerospace and motorsport to protect critical components in an engine fire. Sold by the meter (3 ft), so you buy exactly what the run needs.

Key Features

• Rated 500°F continuous, 3,000°F intermittent exposure
• In flame, silicone converts to a protective silica (SiO2) coating over insulating fiberglass
• Extremely flexible, non-conductive, and highly abrasion-resistant
• Won't melt or become brittle over time
• Sold by the meter (3 ft)

Fitment & Compatibility

• Select the ID for your hose: 3/8" fits -3AN to -4AN, 1/2" fits -4AN to -6AN, 5/8" fits -6AN to -8AN, 3/4" fits -8AN to -10AN, 7/8" fits -10AN to -12AN (larger AN size is a snug fit — for runs over 5 ft, size up)
• Common uses: fuel and oil lines near headers, turbo plumbing, wiring in hot zones

Note: Seal cut ends with RaceFlux heat shrink seals for a finished, secured installation.