BSTFLEX fire sleeve shielding automotive hoses and wiring from heat.
BSTFLEX application view showing bundled lines protected from high temperatures.
BSTFLEX heat-resistant sleeve guarding fuel and oil lines from heat damage.
BSTFLEX silicone-coated fiberglass insulation for wiring and hoses.
BSTFLEX easy-to-install sleeve protecting components from heat stress.
BSTFLEX high-temperature performance from -60°C to 260°C.
BSTFLEX durable sleeve with lifetime warranty for automotive and rail use.

BSTFLEX

BSTFLEX 5/8-inch ID Heat Shielded Fire Sleeve Silicone Coated Fiberglass for Automotive Hoses & Wires - 5 ft

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$19.14

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Free tracked shipping on every order. Most orders arrive within 3–8 business days.

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Return eligible items within 30 days of delivery for a full refund. We email you a prepaid return label.

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During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

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Questions about fit or an order? Email nexoltic@gmail.com. We reply on business days (Mon–Fri).

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Product details

Overview

Meet BSTFLEXs 5/8-inch ID fire sleeve, a silicone coated fiberglass wrap designed to shield automotive hoses and electrical wiring from high heat. At 5 feet in length, it offers flexible coverage for bundles, fuel lines, and wiring harnesses that run near hot engine components. The smooth silicone coating adds abrasion resistance and a clean finish, making it suitable for both under-hood jobs and industrial installations.

Key features and material performance

  • Dimension: Inner diameter 5/8 in; length 5 ft; measurements may vary slightly due to manual tolerance
  • Material: Silicone rubber coated fiberglass for dependable heat insulation and durability
  • Temperature tolerance: -60°C to 260°C; flammability rating VW-1
  • Ease of use: straightforward installation to protect hoses, wires, and lines; helps reduce vapor lock and wire melting
  • Warranty and compliance: BSTFLEX lifetime warranty; certified for MSHA, UL 1441, ROHS, REACH; railway and safety standards included

Why this sleeve stands out

Designed to shield hoses and wiring from nearby heat sources, this sleeve supports longer life for fuel lines, hydraulic lines, and electrical bundles. It remains flexible across a broad temperature span, making it versatile for automotive, rail, and industrial settings where heat exposure is a concern.

Typical uses and benefits

  • Prolongs the life of hoses and wiring by reducing direct heat exposure
  • Helps prevent vapor lock and melting in high-temperature areas
  • Protects fuel lines, oil lines, and wiring in engine bays and equipment rooms
  • Durable wrap suitable for automotive, rail, and other demanding environments

Note: Silicone may emit a mild odor when first heated; this is a normal phenomenon and typically fades with use.

FAQ

Q: What is it used for?

A: Protects hoses and electrical wiring from heat in automotive and industrial settings, guarding fuel lines, oil lines, and electrical bundles.

Q: What are the main specs and warranty?

A: 5/8 in inner diameter, 5 ft length, -60°C to 260°C range, VW-1 rating, silicone-coated fiberglass, lifetime BSTFLEX warranty.

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