Silicone-Coated Fire Sleeve for Hose and Cable
High-temperature fire sleeve for hydraulic lines and harnesses. Fire sleeve protects hydraulic hose and wiring from flame, heat and abrasion. The silicone-coated glass reflects heat and the layer insulates the line. We supply it in ID and length for the line, with hook-and-loop option for install without disconnect. Yes. We supply hook-and-loop versions that wrap the line in place. Higher-temperat
High-temperature fire sleeve for hydraulic lines and harnesses. Fire sleeve protects hydraulic hose and wiring from flame, heat and abrasion. The silicone-coated glass reflects heat and the layer insulates the line. We supply it in ID and length for the line, with hook-and-loop option for install without disconnect. Yes. We supply hook-and-loop versions that wrap the line in place. Higher-temperat
Technical specifications
| Material | Silicone-coated fiberglass |
| Use | Fire / heat protection |
| Options | Hook-and-loop, cut length |
| Standard | ASTM D4896 (PTFE), IEC 60245 (dielectric), UL 94 V-0 (unfilled PTFE). |
| Operating temperature | -200 °C to +260 °C |
| Dielectric strength | ≥ 20 kV/mm (per ASTM test method) |
💾 Datasheets & Test Reports
Download the technical data sheet for this product (PDF).
Information required for quotation
| Base tube | Approved material grade, ID, OD, wall and conditioning as per drawing |
| Datums | Drawing datum scheme and measurement reference |
| Key dimensions | Feature positions, depths, pitch and diameters reviewed before quotation |
| Thread / profile | Standard or custom profile, class, depth, engagement and gage method |
| Other features | Holes, slots, steps, chamfers, cuts and marking |
| Acceptance | Tolerances, sampling, gages, FAI and inspection report |
| Order | Prototype and production quantity, packaging and delivery target |
Applications by industry
- Fire-resistant protection for hydraulic and fuel hoses
- Engine-room and turbo oil-line heat shields
- Exhaust and turbocharger line fire sleeves on diesel sets
- Marine engine-room cable and hose fire protection
- Welding, cutting and hot-work line spark abatement
- High-temperature cable sleeving on industrial boilers
Why silicone-coated fiberglass fire sleeve for this application
Silicone-coated glass fire sleeve contains oil, fuel and hydraulic hoses against radiant heat and flame impingement — protection, not just insulation, for the highest heat zones.
Confirm rated temperature and flame spec against the actual hot surface; it protects against radiant heat, not prolonged direct flame. Check fit over fittings/id.
Standards: SAE J1455 & UL VW-1 (use class), IEC 60684-3.
Feature and remaining-wall review
ID/OD sintered to size; CNC turning for ends, slots and holes. PTFE requires sharp tools to avoid chatter. Review feature depth, edge distance and remaining wall against critical geometries. Capability is confirmed on your drawing, not from a blanket tolerance.
Inspection and traceability
We state the control plan with you. Batch traceability links raw material lot to finished part.
- First-article inspection (FAI) per your plan
- In-process dimensional checks at every station
- Batch certificate of conformance (COA) supplied on request
- Lot traceability to incoming material certificate
- Dielectric strength and insulation resistance testing available on request
Related components
Silicone-Coated Fiberglass Sleeving
Related insulation component from the WELLELE catalog.
Silicone Resin Fiberglass Sleeve
Related insulation component from the WELLELE catalog.
Teflon Tube for Automotive High-Temp Cable
Related insulation component from the WELLELE catalog.
Common questions
Is PTFE chemically inert?
Yes. PTFE resists all common acids, bases, solvents and fuels except molten alkali metals and fluorine at elevated temperature. No post-processing needed for chemical resistance.
What tolerances can you hold on PTFE tubing?
ID/OD ±0.05 mm on standard sizes; tighter tolerances available with grinding. PTFE is sized by sintering, so critical dimensions are best held by finish grinding after forming.
Can PTFE be threaded or machined?
PTFE can be CNC-turned for ends, slots and holes using sharp, low-speed tools to avoid chatter. Threads are best formed by machining rather than rolling.
Do you supply material certification for PTFE?
Yes. Each batch includes a material COA. First-article inspection and dielectric strength testing are available per your specification.
Can fire sleeve be installed without disconnect?
Yes. Each batch includes a material COA. First-article inspection and dielectric strength testing are available per your specification.
Engineering Guides & Selection Notes
Related technical articles that help specify this product.
Get pricing for Silicone-Coated Fire Sleeve for Hose and Cable
Attach the drawing with annual volume. We check the material against your duty and tolerance, verify ID / OD / wall / features, and respond with manufacturability notes and pricing.