Dongguan Ningdao Rubber | CHD9460-UH Ultra-High Temperature 380°C Red Silicone Rubbery Compound

1. Brand Strength and Product Overview

Dongguan Ningdao Adhesive Industry Co., Ltd.Specializing in silicone rubber R&D and manufacturing for over 20 yearsis a specialized manufacturer of high-performance silicone rubber, recognized for its mature technology and consistent quality within the industry. Leveraging years of formulation expertise and production experience, the company has launchedCHD9460-UH Ultra-High Temperature-Resistant Silicone Rubber Compounding (Iron Red)Engineered for extreme high-temperature applications, it is the preferred material for high-performance heat-resistant seals, insulation, and molded components.

CHD9460-UH is a silicone compound that can be thermally vulcanized after the addition of a curing agent, offering bothExcellent thermal stability, strong mechanical properties, and easy processabilityCore temperature resistance up to380℃Minimal performance degradation in prolonged high-temperature environments, meeting the rigorous demands of aerospace, new energy, and industrial high-temperature equipment applications.

II. Core Product Advantages

1. Ultra heat-resistant, stable under extreme conditions

• Core Operating Temperature380℃After ultra-high temperature aging at 380℃ × 2~4h, the specimen shows no brittleness or cracking when folded and exhibits excellent resilience.

• Withstands long-term exposure to high temperatures of 250°C~300°C; retains excellent elasticity and strength after continuous aging at 250°C for 10 days and short-term aging at 300°C.

• Maintains high mechanical performance after long-term aging at 177℃~200℃, with no significant softening, cracking, or deformation.

2. Balanced mechanical performance, durable and rugged

• Hardness 59 Shore A, tensile strength 8.2MPa, elongation at break 460%, tear strength 16KN/m before second-stage vulcanization; balances toughness and elasticity.

• After two-stage curing (200℃ × 2H + 250℃ × 2H), hardness is 69 Shore A, tensile strength is 8 MPa, and tear strength remains stable at 16KN/m. Performance is more stable after high-temperature curing.

• Controllable linear shrinkage (5% after two-stage curing), high molding dimensional accuracy, suitable for precision high-temperature components.

3. Easy to process; compatible with multiple forming processes

• Good mixing flow, easy to blend with vulcanizing agents, compatibleCompression molding, injection molding, and extrusion tube formingand other processes;

• Simple vulcanization process: Add 1% (50% content) of 2,5-dimethyl-2,5-di-tert-butyl peroxide hexane, vulcanize at 170°C for 10 minutes to form.

• No complex post-processing required. Smooth demolding, high production efficiency, and ideal for large-scale mass production.

III. Product Performance Specifications

3.1 Basic Parameters

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3.2 Mechanical Properties

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3.3 Thermal Stability

Medium-temperature aging (3.3.1 200°C × 4H pre-treatment)

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3.3.2 Long-term high-temperature aging (preconditioned at 200°C for 4 hours)

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3.3.3 Ultra-high-temperature aging (200°C × 2h + 250°C × 2h preconditioning)

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IV. Wide Range of Application Scenarios

1. Aerospace: High-temperature seals for engine compartments, high-temperature cable jackets, spacecraft thermal protection components, and high-temperature fuel system gaskets;

2. New Energy VehicleBattery pack high-temperature sealing components, motor insulation parts, turbine system heat-resistant gaskets, and thermal management system insulation accessories;

3. Electrical & ElectronicHigh-temperature seals, gaskets, and insulating components for home appliances such as irons, ovens, and microwaves;

4. Industrial High-Temperature EquipmentHigh-temperature furnace seals, hot press mold buffers, extruder heat-resistant tubing, and industrial kiln sealing components;

5. Other Special Scenarios: High-temperature mold-molded parts, heat-resistant vibration-damping components for precision instruments, and sealing accessories for combustion equipment.

5. Packaging and Storage

1. Package Specifications: 20kg/box, sealed packaging, moisture and stain resistant, easy to transport;

2. Storage ConditionsStore in a cool, dry, well-ventilated area away from direct light and heat sources; keep below 40°C.

3. Shelf life: Unopened original packaging; under proper storage conditions, from the date of manufactureShelf life: 12 months。

6. Ningdao Adhesives · Strength Guaranteed

Over 20 years of dedicated R&D and production in silicone rubber. From raw material selection and formula optimization to manufacturing and final product testing, we maintain strict control throughout the entire process to ensure the performance of CHD9460-UH ultra-high temperature-resistant silicone rubber.Consistent batches, reliable performanceOffers customizable hardness and temperature rating adjustments, supports small-batch sampling and high-volume rapid delivery, provides end-to-end technical guidance, and helps customers solve material challenges in extreme high-temperature applications.