High Temp Cord Seal for Aerospace & Turbines

As industrial and aerospace technologies push toward higher operating temperatures, the demand for reliable sealing solutions has never been greater. Traditional sealing materials such as rubber, asbestos, graphite, and fiberglass often fail, age, oxidize, or become brittle when exposed to temperatures exceeding 600°C.

To address these critical challenges, the High-Temperature Resistant Sealing Rope—also referred to as cord seal—has emerged as a game-changing innovation. Designed for extreme environments, this composite sealing rope combines a high-temperature alloy wire braided covering with a special fiber core material, delivering unmatched durability, flexibility, and sealing performance.

Product Performance

The High-Temperature Resistant Sealing Rope is engineered to resist continuous operating temperatures ranging from 350°C to 1100°C, with specialized designs capable of withstanding up to 1200°C (2220°F). Its unique construction ensures:

• Excellent Sealing Effect: Minimizes hot gas leakage between components, significantly improving system efficiency.

• Long Service Life: Withstands multiple thermal and mechanical cycles without degradation.

• Corrosion, Wear, Fatigue, and Aging Resistance: Outperforms conventional materials in harsh environments, reducing maintenance frequency and downtime.

Main Applications

This advanced sealing solution is widely adopted across demanding industries:

• Aerospace Engine Sealing: Reduces hot gas leakage between machined or cast surfaces in aircraft engines, even during thermal cycling.

• Gas Turbine Sealing: Accommodates differential expansion rates between dissimilar components in gas turbines, acting as a flexible joint.

• High-Temperature Furnace and Kiln Sealing: Provides reliable sealing in industrial heating equipment, exhaust systems, and other extreme-temperature static applications.

Optional Materials and Customization

To meet diverse operational requirements, the sealing rope is available with standard or custom material configurations. The covering and core can be independently selected from:

• Covering Options: 316L stainless steel, IN600 (Inconel 600), Cr20Ni80 (80% nickel-20% chromium), and other metal flat wires.

• Core Options: 316L, IN600, Cr20Ni80, and other metal fibers.

Dimensions and Shapes

• Standard Sizes: φ1 – 5 mm (diameter)

• Custom Sizes: Available upon request

• Available Shapes: Round and oval cross-sections

Installation Styles

To facilitate flexible integration into existing systems, the cord seal can be supplied in three styles:

1. Spooled Lengths: Allows cutting to length on site.

2. Cut Lengths: Pre-cut to customer specifications for instant installation.

3. Endless Rings: Reduces gas flow further by eliminating leakage where cord seal ends meet, enabling easy installation on site.

Why Choose ZYTC Alloy Supplier?

High-performance sealing ropes start with high-quality raw materials. ZYTC Alloy Supplier is a trusted global provider of premium high-temperature alloys, including IN600, Cr20Ni80, and 316L. These alloys form the core of advanced sealing ropes, whether for braided coverings or metal fiber cores.

ZYTC Alloy ensures consistent quality, mechanical properties, and full traceability, while also offering custom alloy formulations and sizes. By choosing ZYTC, manufacturers and engineers gain access to reliable, high-purity materials that improve product performance and durability in extreme environments.

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