TC-9710 Ceratifiable Fire-Resistant Silicone Rubber

What is TC-9710 ceramifiable fire-resistant silicone rubber?

TC-9710 ceratifiable fire-resistant silicone rubber is a cutting-edge ceramic-forming silicone compound designed to provide ultimate circuit integrity and structural protection during fire emergencies. This specialized material represents a significant advancement in fire-safe material technology, combining the inherent flexibility and electrical insulation properties of silicone with an active fire-protection mechanism. In the event of a fire, this material undergoes a unique transformation, shifting from a flexible rubber state into a hard, protective ceramic layer. This "ceramification" process ensures that critical systems continue to function even under extreme thermal stress, making it an indispensable material for modern safety engineering. tc-9710 ceratifiable fire-resistant silicone rubber is specifically formulated for medium and low-voltage fire-resistant wires and cables, providing an effective barrier against flames and ensuring fireproof insulation.

1. The Science of Ceramification: How TC-9710 Works

The fundamental principle behind tc-9710 ceratifiable fire-resistant silicone rubber lies in its unique ceramic-forming mechanism. At room temperature, the material maintains the elasticity, flexibility, and electrical properties typical of high-quality silicone rubber. However, when exposed to flameless high temperatures above 350°C or flame erosion above 600°C, it undergoes a chemical transformation. The ceramic precursors—typically specialized silicate minerals and fluxing agents—sinter together to form a hard, self-supporting ceramic shell. This "ceramification" process ensures that critical systems continue to function even under extreme thermal stress, providing a robust defensive barrier against combustion. The material shifts from a flexible rubber state into a hard, protective ceramic layer that maintains excellent insulation properties, effectively protecting the underlying conductor and preventing circuit failure during fire events.

Liyang Tiansheng Insulating Materials Co., Ltd. has developed particular expertise in producing such advanced ceramic-forming compounds. The company, founded in 2013, serves the top ten cable manufacturers in China, including Jiangsu Shangshang, New Far East, and Hengtong Group. The company's strong technical team and rigorous quality control systems ensure that tc-9710 ceratifiable fire-resistant silicone rubber consistently delivers the ceramification performance required for critical fire-safety applications.

Key Performance Characteristics of TC-9710

• Ceramification Temperature: Forms ceramic shell above 350°C (flameless) or 600°C (flame exposure)
• Normal Operating Range: Maintains flexibility and insulation from -70°C to 200°C
• Flame Retardance: UL94 V-0 rating with oxygen index of 36%
• Smoke Toxicity: ZA1 safety level—low smoke, halogen-free, non-toxic
• Dielectric Strength: 24 kV/mm, maintaining electrical integrity during ceramification

2. Product Applications and Classifications

TC-9710 ceratifiable fire-resistant silicone rubber is versatile material that serves multiple critical functions in fire-resistant cable systems. The following three application categories represent the primary uses of this advanced material in modern safety engineering.

2.1 Fire-Resistant Cable Insulation Layer

Definition and Positioning: As an insulation layer material, tc-9710 ceratifiable fire-resistant silicone rubber serves as the primary dielectric barrier between the conductor and the external environment. This application leverages the material's exceptional electrical insulation properties during normal operation and its protective ceramic-forming capability during fire events. When the material shifts from a flexible rubber state into a hard, protective ceramic layer, it ensures that critical systems continue to function even under extreme thermal stress.

Core Functionality and Technical Characteristics: The insulation grade of this material achieves a dielectric strength of 24 kV/mm and volume resistivity of 2×10¹⁶ Ω·cm. During normal operation from -70°C to 200°C, it maintains the elasticity, flexibility, electrical, and mechanical properties of silicone rubber. In the event of a fire, the material undergoes ceramification, forming a hard ceramic shell that continues to provide electrical insulation even under extreme thermal stress. The material's oxygen index of 36% and UL94 V-0 rating ensure excellent flame resistance, while its ZA1 smoke toxicity rating guarantees low smoke emission and non-toxic combustion products.

Typical Applications: This grade is primarily used as the primary insulation layer in medium and low-voltage fire-resistant cables for building construction, mass transit systems, and industrial facilities. Liyang Tiansheng has accumulated substantial practical experience in producing this grade, supported by a complete testing system that ensures consistent quality.

Differentiation and Company Capabilities: The combination of superior electrical properties and active ceramification protection distinguishes this product. The company uses high-quality imported raw materials and manages production under the IATF 16949 new energy management system, ensuring batch-to-batch consistency.

2.2 Fire-Resistant Cable Inner Protective Layer

Definition and Positioning: As an inner protective layer, tc-9710 ceratifiable fire-resistant silicone rubber serves as a secondary barrier within cable constructions, positioned between the primary insulation and the outer sheath. This grade is designed to provide an additional layer of fire protection that complements the primary insulation system, ensuring that critical systems continue to function even under extreme thermal stress through its unique ceramification process.

Core Functionality and Technical Characteristics: The protective layer grade of tc-9710 ceratifiable fire-resistant silicone rubber maintains excellent mechanical properties during normal operation while providing robust fire protection during emergencies. The material undergoes ceramification when exposed to flameless high temperatures above 350°C or flame erosion above 600°C, forming a hard ceramic shell that acts as an effective barrier against flame penetration. The material's tear strength of 23 kN/m ensures durability during cable installation and service. Its UL94 V-0 rating and ZA1 smoke toxicity level provide comprehensive fire safety, ensuring the material's transformation from a flexible rubber state into a hard, protective ceramic layer occurs reliably during fire incidents.

Typical Applications: This grade is widely used as the inner protective layer in fire-resistant cables for high-rise buildings, tunnels, and critical infrastructure. The company serves leading cable manufacturers with such products, focusing on promoting new-type fire-resistant silicone materials for aerospace, nuclear power, and new energy vehicle applications.

Differentiation and Company Capabilities: The protective barrier function combined with reliable ceramification behavior distinguishes this product. Liyang Tiansheng has built its core business around providing various special silicone rubber products for cable manufacturers, with annual sales exceeding 50 million yuan and production capacity of 5,000 tons.

2.3 Fire-Resistant Cable Sheath Compound

Definition and Positioning: As a sheath compound, tc-9710 ceratifiable fire-resistant silicone rubber serves as the outermost protective layer of the cable, providing both environmental resistance and fire protection. This application leverages the material's mechanical durability, weatherability, and active ceramification protection to ensure cable integrity in the most demanding environments. The material's ceramification process ensures that critical systems continue to function even under extreme thermal stress, making it ideal for outdoor and harsh industrial applications.

Core Functionality and Technical Characteristics: The sheath grade offers enhanced mechanical properties, including tensile strength of 7.0 MPa and hardness of 70 Shore A. The material maintains its elasticity and flexibility from -70°C to 200°C while providing excellent resistance to UV radiation, moisture, and weathering. Its oxygen index of 36% and UL94 V-0 rating ensure superior flame resistance, while the ZA1 smoke toxicity level guarantees safety in occupied spaces. Upon exposure to fire conditions above 350°C or 600°C, the material shifts from a flexible rubber state into a hard, protective ceramic layer that maintains structural integrity and prevents flame penetration. This dual functionality—flexible protection during normal service and rigid ceramic barrier during fire—makes tc-9710 ceratifiable fire-resistant silicone rubber an ideal choice for critical cable systems.

Typical Applications: This grade is ideal for cables exposed to outdoor conditions, extreme temperatures, and fire-risk environments. It is widely used in petrochemical facilities, steel mills, and other industrial applications requiring both environmental durability and fire resistance.

Differentiation and Company Capabilities: The combination of weatherability, mechanical toughness, and active fire protection distinguishes this product. Liyang Tiansheng has optimized its formulations through extensive practical experience and a rigorous working attitude, ensuring reliable performance in demanding environments.

Comparative Overview: TC-9710 Application Grades

3. Quality Assurance in TC-9710 Production

The production of tc-9710 ceratifiable fire-resistant silicone rubber requires comprehensive quality assurance systems that address the critical safety nature of ceramic-forming materials. Liyang Tiansheng operates under the IATF 16949 new energy management system, ensuring rigorous quality control across all products. The company's complete testing system verifies normal temperature properties, ceramification behavior, flame resistance, and insulation performance across all production batches. The use of high-quality imported raw materials and specialized products from listed companies as key production materials ensures consistent ceramification performance. With annual production capacity of 5,000 tons, the company demonstrates its ability to meet large-scale production demands while maintaining quality standards. Its professional and technical capabilities remain at the leading level among domestic counterparts.

1. Normal Property Testing: Verification of elasticity, flexibility, and mechanical properties from -70°C to 200°C
2. Ceramification Testing: Confirmation of protective shell formation at ≥350°C and ≥600°C
3. Electrical Testing: Verification of dielectric strength and volume resistivity retention during ceramification
4. Fire Performance Testing: UL94 V-0 rating and oxygen index verification
5. Smoke Toxicity Verification: ZA1 level certification for fire safety compliance

4. Frequently Asked Questions

Q1: What does "ceramifiable" mean in the context of TC-9710?

TC-9710 ceratifiable fire-resistant silicone rubber undergoes a unique transformation when exposed to high temperatures above 350°C (flameless) or 600°C (flame), shifting from a flexible rubber state into a hard, protective ceramic layer. This "ceramification" process ensures that critical systems continue to function even under extreme thermal stress.

Q2: What is the normal operating temperature range for TC-9710?

The material maintains the elasticity, flexibility, electrical, and mechanical properties of silicone rubber under conditions ranging from -70°C to 200°C during normal operation, making it suitable for a wide range of environmental conditions.

Q3: What quality standards does Liyang Tiansheng follow for TC-9710 production?

Liyang Tiansheng Insulating Materials Co., Ltd. operates under the IATF 16949 new energy management system, using high-quality imported raw materials and maintaining a complete testing system to verify ceramification behavior and product quality. The company employs a strong technical team of more than 40 professionals.

Q4: Is TC-9710 suitable for use in occupied spaces where smoke toxicity is a concern?

Yes. TC-9710 ceratifiable fire-resistant silicone rubber achieves ZA1 smoke toxicity safety level, the highest rating, and is halogen-free, phosphorus-free, and heavy metal-free. This makes it ideal for use in occupied spaces such as buildings, mass transit systems, and other environments where smoke toxicity is a critical safety concern.