In the hydraulic industry, reliability is everything—especially when hoses operate in high-temperature environments, near molten metal, welding sparks, engine compartments, or where fire protection is mandatory. As a hydraulic hose manufacturer ourselves, we understand how critical it is for your hoses to meet strict safety, performance, and certification standards.

That’s why silicone fiberglass fire sleeve has become an essential protective solution across hydraulic, pneumatic, automotive, steel, and rail applications. In this article, we’ll share a professional, industry-specific overview of what makes this product valuable, how it performs, and why certified protection is so important for OEM hose manufacturers.

What Is a Silicone Fiberglass Fire Sleeve?

A silicone fiberglass fire sleeve is a high-temperature protective sleeve constructed from braided E-glass fiberglass and coated with premium-grade silicone rubber. This combination provides:

• Continuous heat resistance up to 260°C

• Short-term protection from molten splash and flame exposure

• Excellent electrical insulation

• Strong resistance to abrasion, UV, oils, and chemicals

For hydraulic hose manufacturers, this sleeve acts as the first line of defense, protecting hose assemblies, fuel lines, hydraulic pipes, wiring bundles, and cable harnesses from extreme thermal conditions that can otherwise lead to catastrophic failures.

Why Hydraulic Hose Manufacturers Prefer Silicone Fiberglass Fire Sleeves

1. Extreme Temperature Resistance

Our fire sleeve has undergone both −70°C low-temperature testing and 260°C long-term heat resistance testing, proving stable performance across a wide temperature range.

2. Flame Protection for Safety-Critical Applications

The silicone coating forms a thermal barrier that delays heat penetration, giving your hose assemblies higher fire safety margins. This is crucial for industries such as:

• Railway systems

• Steel plants

• Automotive OEM

• Heavy-duty machinery

• Marine and offshore

• Aerospace

3. Enhanced Durability & Mechanical Protection

Hydraulic hoses frequently fail due to abrasion, oil contamination, or external mechanical damage. Our fire sleeve is tested for:

• Abrasion resistance (BS EN 388)

• Oil resistance (BS EN ISO 6530)

• Tensile strength (BS 2576)

• Thermal conductivity (ASTM C177)

These performance tests ensure long-term durability even in the harshest working environments.

Certified and Tested for Global Industries

As professional hose manufacturers, we recognize how important certifications are when selling to OEM customers, government procurement, and industrial integrators.

Our silicone fiberglass fire sleeve complies with major global standards:

Fire & Temperature Certifications

• MSHA approval — required in mining and underground applications

• UL 1441 Flame Test

• −70°C Low Temperature Test

• 260°C High Temperature Resistance Test

Environmental Compliance

• ROHS

• REACH

Rail Industry Certifications

• DIN EN 45545-2:2020 Railway standard for fire behavior

• DIN 45545 Low smoke toxicity

• DIN 54837 / DIN 5510-2 Combustibility rating for rail vehicles

• NF EN ISO 11925-2 (15/30 sec)

• TB/T 3138-2018 Standard for flame-retardant materials in railway locomotives and vehicles

Industrial Protection Tests

• Molten Metal Splash Test (BS EN 373)

• Abrasion Test (BS EN 388)

• Oil Resistance Test (BS EN ISO 6530)

• Tensile Strength Test (BS 2576)

• Thermal Conductivity Test (ASTM C177)

These certifications give hose manufacturers confidence when supplying assemblies for critical, safety-related applications.

Applications for Hydraulic Hose Manufacturers

Hydraulic hose assemblies installed in high-temperature zones require additional protection. This includes:

• Steel plant hydraulic lines

• Engine compartment hoses

• Furnace-area lubrication lines

• Welding and molten metal zones

• Marine engines and exhaust systems

• Off-road equipment

• Injection molding machines

• Railway braking systems

Using a certified silicone fiberglass fire sleeve helps increase hose service life and reduces downtime caused by premature failure.

Other Protective Sleeves We Manufacture

To meet broader hydraulic industry needs, we also supply:

• Nylon Hose Sleeve – excellent burst protection and abrasion resistance

• Polyester Hose Sleeve – economical and flexible for general protection

• Polypropylene Hose Sleeve – lightweight and cost-effective

• Fiberglass Hose Sleeve – high-temperature resistance without silicone

• Aramid Braided Sleeve – extreme strength and cut resistance

• Metal Spring Guard – mechanical protection against crushing and wear

Hydraulic manufacturers can customize their hose assembly systems with the ideal sleeve type depending on temperature, abrasion, and safety requirements.

FAQs About Silicone Fiberglass Fire Sleeve

1. What is the maximum continuous temperature the fire sleeve can withstand?

It is designed for 260°C continuous heat resistance, with short-term exposure to higher temperatures.

2. Is this fire sleeve suitable for hydraulic systems in steel plants?

Yes. It has passed molten splash, flame exposure, and abrasion tests, making it ideal for steel, foundry, and smelting operations.

3. Can the fire sleeve be used in railway braking or pneumatic systems?

Absolutely. It meets DIN EN 45545-2, TB/T 3138-2018, and other railway certification requirements.

4. What sizes are available for hydraulic hoses?

We supply sizes from 6mm ID to 150mm ID, suitable for most hose assemblies.

5. Does the silicone coating crack in low temperatures?

No. It is tested at −70°C and remains flexible without cracking.

6. Can OEM customers request custom colors or printing?

Yes, custom colors, logo printing, and cut-to-length packaging are available.

For hydraulic hose manufacturers, choosing a high-quality silicone fiberglass fire sleeve is not just about thermal protection—it’s about safety, reliability, and compliance with international standards. With its extensive certifications, proven performance, and high durability, this sleeve is the ideal solution for critical applications across automotive, rail, steel, marine, and heavy machinery industries.

If you also need nylon, polyester, polypropylene, aramid, fiberglass, or metal spring protection sleeves, we can provide complete solutions tailored to your hydraulic hose system requirements.