Self-Wrapped Adhesive Aluminum Fiberglass Sleeve for Automotive Wire, Cable & Fuel Line Protection
Product Description
The self-wrapped aluminum fiberglass protection sleeve is designed for thermal insulation, radiant heat reflection, and abrasion protection of automotive wires, cables, and fuel lines.
Manufactured by BSTFLEX, this sleeve features a fiberglass insulating core laminated with aluminum foil, combined with a self-wrapping structure and adhesive closure, allowing quick installation without disconnecting existing lines.
It is widely used in engine bays, under-hood areas, fuel systems, and electrical harness protection, where heat, vibration, and space constraints are critical.
Material Structure & Layer Composition
| Layer Position |
Material |
Function |
| Outer Surface |
Aluminum Foil |
Reflects radiant heat |
| Insulation Core |
Fiberglass |
Thermal insulation & fire resistance |
| Closure System |
Adhesive Self-Wrap |
Easy installation & secure closure |
| Structure |
Slit / Self-Wrappable Sleeve |
Retrofit friendly |
Key Functional Performance
| Performance Aspect |
Description |
| Radiant Heat Shielding |
Aluminum surface reflects exhaust & engine heat |
| Thermal Insulation |
Fiberglass core reduces heat transfer |
| Self-Wrapping Design |
Install without removing cables or hoses |
| Adhesive Closure |
Maintains tight wrap under vibration |
| Fire & Heat Resistance |
Suitable for engine bay environments |
| Abrasion Protection |
Protects wires and fuel lines from wear |
Typical Applications
| Application Area |
Protected Component |
| Engine Wiring Harness |
Electrical cables |
| Fuel Line Protection |
Fuel hoses & pipes |
| Sensor & Control Cables |
Automotive signal wiring |
| Under-Hood Routing |
Heat-exposed lines |
| Retrofit Installations |
Existing vehicle systems |
Product Configuration Options
| Option |
Description |
| Sleeve Type |
Self-wrapped / slit design |
| Surface |
Aluminum foil laminated |
| Insulation |
Fiberglass |
| Adhesive |
Heat-resistant adhesive strip |
| Form |
Flat wrap / tubular after closure |
Technical Specifications
| Item |
Description |
| Product Type |
Self-Wrapped Heat Protection Sleeve |
| Manufacturer |
BSTFLEX |
| Materials |
Aluminum Foil / Fiberglass |
| Function |
Heat Reflection & Insulation |
| Application |
Wire / Cable / Fuel Line |
| Temperature Resistance |
Automotive engine bay grade |
| Installation |
Adhesive self-wrapping |
| Inner Diameter |
Customizable |
| Length |
Customizable |
| OEM Supply |
Supported |
Advantages vs Traditional Closed Sleeves
| Aspect |
Self-Wrapped Sleeve |
Closed-End Sleeve |
| Installation Time |
Very Fast |
Requires disconnection |
| Retrofit Friendly |
Excellent |
Limited |
| Maintenance Access |
Easy |
Difficult |
| Heat Protection |
Excellent |
Excellent |
| Labor Cost |
Lower |
Higher |
Customization Capability
| Custom Option |
Availability |
| Width & Length |
yes |
| Aluminum Foil Thickness |
yes |
| Adhesive Type |
yes |
| Branding & Packaging |
yes |
| Bulk OEM Supply |
yes |
Application Notice
Ensure the surface is clean and dry before installation to achieve optimal adhesive performance. Proper overlap is recommended for maximum heat protection.
The self-wrapped adhesive aluminum fiberglass sleeve manufactured by BSTFLEX provides a fast, effective, and professional solution for protecting automotive wires, cables, and fuel lines from radiant heat, thermal exposure, and abrasion.
With its easy retrofit installation, reliable adhesive closure, and high-temperature materials, it is an ideal choice for OEM production, aftermarket upgrades, and vehicle maintenance.
It is used to protect the industry & automotive wires, cables, hydraulic hoses, piping and tubing from radiant heat sources.
| Part Number |
Normal Inside diameter |
| Inches |
mm |
Dash # |
| BST-SWALFS-10 |
3/8 |
10 |
-6 |
| BST-SWALFS-13 |
1/2 |
13 |
-8 |
| BST-SWALFS-16 |
5/8 |
16 |
-10 |
| BST-SWALFS-19 |
3/4 |
19 |
-12 |
| BST-SWALFS-25 |
1 |
25 |
-16 |
| BST-SWALFS-29 |
1 1/8 |
29 |
-18 |
| BST-SWALFS-32 |
1 1/4 |
32 |
-20 |
| BST-SWALFS-35 |
1 3/8 |
35 |
-22 |
| BST-SWALFS-38 |
1 1/2 |
38 |
-24 |
| BST-SWALFS-41 |
1 5/8 |
41 |
-26 |
| BST-SWALFS-44 |
1 3/4 |
44 |
-28 |
| BST-SWALFS-48 |
1 7/8 |
48 |
-30 |
| BST-SWALFS-51 |
2 |
51 |
-32 |
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