Product Description

Our silicone-coated fiberglass heat sleeve is a high-performance thermal protection product engineered to shield wires, hoses and cables from extreme heat, sparks, molten splashes and mechanical abrasion in demanding industrial and automotive environments. Designed for applications where conventional insulation falls short, the sleeve delivers reliable thermal protection without sacrificing flexibility or ease of installation.

The sleeve is constructed from a fiberglass inner braid with a smooth silicone coating, combining two proven materials into a single, high-performance solution. The fiberglass inner braid provides the core thermal resistance, maintaining structural integrity even when exposed to elevated temperatures, while the smooth silicone outer coating adds a durable layer of abrasion and moisture protection. This dual-material construction ensures that the sleeve resists not only heat but also the physical wear and environmental moisture that can degrade ordinary insulation over time. The silicone coating also provides a smooth, easy-to-clean surface that helps prevent the buildup of grease, oil and other contaminants commonly found in engine compartments and industrial settings.

It withstands continuous operating temperatures from -40°C to 260°C, making it suitable for both extreme cold and sustained high-temperature environments, and intermittent heat exposure up to 1650°C, providing critical protection against brief but intense thermal events such as direct flame contact, molten metal splashes and proximity to exhaust manifolds. This wide temperature range makes it an ideal choice for engine compartments, exhaust areas, industrial equipment and other high-temperature environments where wiring, hoses and cables are exposed to both chronic heat and occasional thermal spikes.

Supplied in 20-meter rolls with inner diameters from 4 mm to 67 mm, the sleeve covers a broad range of wire, hose and cable sizes, from small sensor leads to large industrial hoses. The sleeve can be customized in length, thickness and logo for OEM programs, allowing manufacturers to specify the exact dimensions and branding they need for their particular applications. Whether used as a standard catalog item or tailored to OEM requirements, the silicone-coated fiberglass heat sleeve provides dependable thermal protection that stands up to the most challenging operating conditions

Key Features

Wide continuous temperature range

1. – Rated -40°C to 260°C for continuous service in harsh thermal environments

Extreme intermittent heat resistance

2. – Fiberglass construction withstands intermittent heat exposure up to 1650°C

Dual-layer construction

3. – Fiberglass core provides thermal insulation; silicone coating adds abrasion, moisture and splash resistance

Full size range

4. – Available in inner diameters from 4 mm to 67 mm to fit wires, hoses and cable bundles of different sizes

Five standard colors

5. – Black, blue, red, white and silver for circuit identification and clean installations

Customizable and OEM friendly

6. – Custom length, thickness and logo printing accepted for volume programs

Technical Specifications

Applications

• Automotive & motorcycle – Safeguarding hydraulic brake lines, fuel delivery hoses, and electrical wiring looms against sustained under-hood heat and exhaust manifold proximity in passenger cars, light trucks, and motorcycles.
• Industrial equipment – High-temperature heat shielding for electrical cables and hydraulic hoses installed in close proximity to industrial furnaces, heavy-duty engines, and heat-generating processing machinery.
• Electrical & mechanical – Protecting grouped cable assemblies and electrical terminal connections from radiant thermal exposure, flying sparks, and incidental molten splatter encountered in demanding industrial and workshop environments.
• Marine & off-road – Durable defense for fluid lines and electrical wiring aboard marine vessels and off-highway vehicles, where elevated temperatures and persistent mechanical vibration demand robust, long-lasting thermal protection.

Customization Options

Quality & Packaging

Consistent wall thickness

• – Uniform silicone coating ensures stable protection and easy installation

Flexible and easy to install

• – Sleeve slides over wires and hoses, can be secured with ties or clamps

Standard packing

• – Supplied in 20 m rolls per unit, packed in export cartons

Test reports

• – Available upon request for bulk orders

All technical data above is taken from the product specification sheet (construction, temperature ratings, inner diameter range, roll length, colors, customization and OEM terms).