BSTFLEX 5/8 in ID Fire Sleeve - Silicone-Coated Fiberglass, 5 ft Heat Shield for Hoses & Wires

Overview

The BSTFLEX 5/8 in ID Fire Sleeve combines a silicone-coated fiberglass outer layer with a rugged inner sleeve to guard automotive hoses and electrical wiring against high heat. Sized at 5 feet (1.5 m) when uncoiled, it offers a flexible, snug fit that eases routing around tight spaces while remaining straightforward to install.

Designed to shield fuel lines, hydraulic lines, and wiring bundles, this sleeve helps reduce exposure to radiant and conductive heat, supporting smoother operation of surrounding components. The silicone coating adds a protective barrier that remains resilient under demanding conditions, helping to maintain insulation integrity even where space is limited or harnesses run alongside hot engine parts.

Key Benefits

• Heat tolerance and protection: withstands prolonged exposure to high temperatures with a robust silicone coating and fiberglass base.
• Easy installation: a flexible sleeve that slides over bundles and hoses, simplifying retrofits and upgrades.
• Vapor lock and melt prevention: designed to shield critical hoses and wiring from heat-induced failures in automotive and industrial settings.
• Durable construction: inner fiberglass core plus silicone coating creates a resilient barrier against heat, abrasion, and chemical exposure.

Material, Safety, and Certifications

• Construction: standard silicone rubber-coated fiberglass with an inner fiberglass sleeve.
• Operating range: -60°C to 260°C; flammability rated VW-1.
• Certifications and tests: MSHA, UL 1441, ROHS, REACH, plus rail and safety standards such as DIN EN45545-2:2020 and DIN 45545 Low Smoke Toxicity.
• Warranty: BSTFLEX lifetime warranty backed by extensive testing and quality assurances including abrasion, oil resistance, and tensile strength evaluations.

Real-World Scenarios

Perfect for protecting fuel lines, hydraulic hoses, and electrical wiring in automotive, industrial, and railway applications where elevated temperatures are common. The sleeve’s size and coating make it a practical upgrade for protecting vulnerable pathways without adding excessive bulk.

Usage Tips

• Plan routing to minimize kinks or sharp bends that could pinch the sleeve.
• Install with hoses and wires fully cooled when possible to maximize sleeve longevity.
• Note: a mild odor may occur when silicone is heated; this is normal and temporary.

Quick Start Guide

1) Measure the hose or wire bundle to confirm fit. 2) Slide the BSTFLEX sleeve over the target area. 3) Secure with ties or clamps as needed. 4) Inspect after heat exposure for any signs of wear.