Aluminized Wholesale High Temp Cable Automotive Wiring Harness Heat Shield Braided Wire Sleeve

• Customization: Available
• Application: Electrical Insulation, Fire Barrier, Sound Insulation, Thermal Insulation
• Color: Silver
• Model NO.: BST-HPT
• Material: Aluminum
• Maximum Voltage: Nm
• Thermal Rating: 250 250
• Near Port: Shanghai, Ningbo
• Type: Insulation Sleeve & Tube
• Chemistry: Organic Insulation
• Classification: Hybrid Insulation Materials
• Brand: Bstflex
• Transport Package: Carton Box
• Specification: 8-140 MM ID
• Trademark: BSTFLEX
• Origin: China
• HS Code: 701959
• Production Capacity: 1000000m/Day
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 3 days (1 - 500 Meters) ; To be negotiated ( > 500 Meters)

Product Description

Aluminized High Temperature Cable Heat Shield - Automotive Wiring Harness Braided Wire Sleeve

Product Overview

The aluminized braided wire sleeve is engineered for automotive wiring harness heat shielding, providing radiant heat reflection, thermal insulation, and abrasion protection for cables, wires, and electrical looms exposed to high-temperature engine bay environments.

Manufactured by BSTFLEX, this sleeve combines a highly reflective aluminized surface with a flexible braided construction, helping to deflect radiant heat, reduce heat soak, and protect wiring integrity under continuous thermal cycling and vibration.

Available for wholesale supply, it supports OEM assembly, harness manufacturing, and aftermarket installations.

Material Structure & Construction

Component	Material	Function
Outer Surface	Aluminized film / foil	Reflects radiant heat
Base Sleeve	Fiberglass or high-temp textile	Thermal & mechanical protection
Construction	Braided expandable sleeve	Flexibility & coverage
Form	Tubular sleeve	Easy routing over harnesses

 

Thermal & Mechanical Performance

Performance Aspect	Capability
Radiant Heat Reflection	Excellent (aluminized surface)
Heat Resistance	Suitable for high-temp engine bays
Thermal Insulation	Reduces heat transfer to wires
Abrasion Resistance	Protects against chafing & vibration
Flexibility	Maintains cable bend radius
Lightweight	Minimal impact on harness weight

 

Why Aluminized Braided Sleeves for Wiring Harnesses

Feature	Benefit
Reflective Aluminized Layer	Deflects exhaust & turbo heat
Braided Construction	Easy installation on complex looms
Expandable Design	Fits multiple cable diameters
Durable Materials	Long service life
Automotive Grade	OEM & Tier-1 suitable

 

Typical Applications

Application Area	Protected Component
Automotive Engine Bay	Wiring harnesses
EV & Hybrid Vehicles	High-voltage cables
Turbo & Exhaust Zones	Heat-exposed wiring
Trucks & Commercial Vehicles	Electrical looms
Industrial Equipment	Control cables

 

Configuration Options

Option	Description
Inner Diameter	Customizable
Expansion Range	Standard / wide expansion
Length	Continuous or cut-to-length
Base Sleeve Material	Fiberglass / high-temp textile
Aluminization Type	Film / foil laminate

 

Technical Specifications

Item	Description
Product Type	Aluminized Braided Wire Sleeve
Manufacturer	BSTFLEX
Application	Automotive wiring harness protection
Structure	Expandable braided sleeve
Surface	Aluminized reflective
Temperature Grade	Automotive high-temperature
Supply Mode	Wholesale / bulk
Customization	Supported
OEM & Project Supply	Available

 

Comparison: Aluminized Sleeve vs Standard Braided Sleeve

Aspect	Aluminized Braided Sleeve	Standard Braided Sleeve
Radiant Heat Protection	High	Low
Thermal Management	Excellent	Limited
Engine Bay Suitability	Excellent	Moderate
Wire Temperature Stability	Improved	Variable
Service Life	Longer	Standard

 

Installation Guidelines

Step	Recommendation
Harness Preparation	Clean & organize cables
Installation	Expand sleeve and slide over harness
Securing	Use ties or clamps if required
Orientation	Reflective side facing heat source

The aluminized high-temperature braided wire sleeve manufactured by BSTFLEX delivers a professional heat-shielding solution for automotive wiring harnesses and cables.

With excellent radiant heat reflection, flexible braided design, and wholesale OEM availability, it is ideal for engine bay applications, EV cabling, and heat-exposed electrical systems.

 

Outer Layer Material	Aluminum
Middle Layer Material	Aluminum
Inner Layer Material	Aluminum
Heat Resistance	120 °C
Diameters	Ø8 mm - Ø140 mm
Length	MAX 5m per roll, customs length upon request.
Length Tolerance	±5 mm until 400mm., ± 1% for 400mm. and more
Nodes	Min. 400 nodes / meter
Bending Radius	Approximately 1.5 x ID
Thermal Resistance	-30 C to +120 C