Aluminum Foil Coated Fiberglass Sleeve

No.LL-HRS-03

Aluminum Foil Coated Fiberglass Sleeves are made by weaving high-quality alkali-free glass fiber into cylindrical tubes, followed by processing with flame-retardant aluminum. They can effectively resist thermal radiation, provide reliable protection at 250°C, and withstand short-term high-temperature physical impact of 550°C. They are specialized protective products for cable maintenance and production.

Combined with special high-temperature aluminum foil, alkali-free glass fiber sleeves can be customized to meet customers’ inner diameter requirements. They can also be fabricated into special-shaped parts. The aluminum layer on the surface of the glass fiber sleeve reflects and dissipates heat instead of absorbing or transferring it, thereby better protecting pipes and cables.

In environments with non-recurring flames or radiant heat energy, the anti-radiant heat sleeve is the best choice for protecting important hoses, cables and alarm lines.

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Description

technical indicators of Aluminum Foil Coated Fiberglass Sleeve-liluan technology

Core Features
· High Radiant Heat Reflectivity： The high-purity aluminum foil layer on the surface reflects up to 95% of infrared radiation, making it the ideal barrier for protecting sensitive piping from external high-temperature heat sources.
· Seamless Tubular Construction： Using an integrated weaving and composite process, it provides 360-degree protection with no blind spots, eliminating the risk of heat leakage through gaps that can occur with wrapped materials.
· Broad Temperature Range： The inner fiberglass substrate can withstand temperatures of 550℃ over extended periods, while the outer aluminum foil coating effectively withstands harsh industrial thermal environments while maintaining its reflectivity.
· Lightweight & Low Profile： Compared to bulky silicone tubing, aluminum foil tubing is lighter and thinner, making it ideal for protecting wiring harnesses in engine compartments with limited space or inside precision equipment.
rolls of Liluan aluminum foil fiberglass sleeve under studio of the reflective aluminum surface and the round opening-liluan technology

rolls of Liluan aluminum foil fiberglass sleeve under studio of the reflective aluminum surface and the round opening-liluan technology

Technical Advantages
1）Anti-Delamination Bond
Using an advanced thermal lamination process ensures that the aluminum foil layer remains firmly bonded to the fiberglass tube even under frequent bending or sustained high temperatures, preventing peeling or cracking.
2）Fluid & Chemical Resistance
The outer aluminum foil layer not only provides thermal insulation but also effectively prevents the penetration of hydraulic oil, lubricating oil, and moisture, keeping the internal piping dry and clean.
3）Easy to Cut & Install
The material is dense yet somewhat elastic, allowing it to be easily cut to the desired length with standard industrial scissors. Installation is smooth and does not damage the cable jacket.
4）Global Export Standard
Compliant with the ISO 9001 quality management system and backed by over 15 years of export experience, our products meet world-class standards in both tear strength and reflectivity.

Common Applications
· Automotive & Racing: Protect fuel lines, brake lines, and sensor harnesses located near the exhaust manifold to prevent air locks and signal distortion.
· Industrial Automation: Provides thermal shielding for power cables used in welding robots and precision machine tools, extending the maintenance intervals for equipment operating in high-heat environments.
· Aerospace & Aviation: Designed to protect internal cabin piping in applications with strict weight requirements, balancing fire protection with weight reduction.
· Energy & Power Plants: Protect all monitoring instrument cables in the vicinity of boilers and high-temperature steam pipes.

Company Introduction
Headquartered in Ma'anshan City — a national civilized city on the banks of the Yangtze River — Mer-Eagle Industry Co., Ltd. (Ma'anshan) serves as the headquarters of Ma'anshan Liluan Technology Co., Ltd. The company covers approximately 30,000 square meters and specializes in the R&D, production, sales, and installation of mid-to-high-end thermal insulation materials, industrial special fasteners (including graphite packing), and special metal surface treatment agents.
Mer-Eagle holds international ISO "three-in-one" management system certification (quality, environment, and occupational health & safety) and has been recognized as a Provincial High-Tech Enterprise and an Anhui Province Quality Trustworthy Enterprise.
With 20 years of dedicated research, an in-house R&D center, and academic collaboration with Taiyuan University of Technology, Mer-Eagle has secured 15 national patents. Its core rock wool products meet the standards of leading markets in Europe and the United States, and are distributed both domestically and internationally.
Guided by the philosophy of "Technology First, Quality-Oriented, Service Supreme", Mer-Eagle is committed to delivering excellence to partners worldwide.