| Customization: | Available |
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| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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DC 600 is a high-performance ceramized refractory silicone rubber designed to deliver exceptional fire protection in extreme environments. At room temperature, it retains all the classic properties of silicone rubber-flexibility, durability, and resilience-while offering unique ceramic-forming capabilities when exposed to high temperatures.
This material is engineered from a high-strength specialty fiber fabric combined with a specially formulated silica-based silicone rubber. Upon exposure to fire or intense heat, the silicone layer transforms into a rigid ceramic-like shell, providing outstanding insulation and structural integrity.
Key Features:
Ceramization at High Temperatures: Forms a tough, insulating ceramic shell when burned.
Thermal Resistance: Withstands direct flame exposure up to 1200ºC.
Excellent Insulation: Maintains electrical insulation before and after ceramization.
Superior Flame Retardancy: Halogen-free, non-toxic, and environmentally friendly.
Durability: Resistant to water, aging, seismic activity, and extreme temperatures (both high and low).
Lightweight and Ultra-Thin: Ideal for compact designs where space and weight are critical.
3.Parameters
DC 600 Ceramized Refractory Silicone Rubber - Technical Specification Table
| Property | Unit | Value / Description | Test Method |
|---|---|---|---|
| Color | - | Light Green / Light Green+Yellow | Visual Inspection |
| Appearance | - | Smooth Surface, Flexible | - |
| Odor | - | Odorless | - |
| Halogen Content | - | Halogen-Free | IEC 61249-2-21 |
| Toxicity | - | Non-toxic, RoHS & REACH Compliant | RoHS, REACH |
| Property | Unit | Specification | Test Method |
|---|---|---|---|
| Hardness | Shore OO | 25 ± 5 | ASTM D2240 |
| Thickness | mm | 0.5 - 50 | ASTM D374 |
| Density | g/cm³ | 1.8 ± 0.2 | ASTM D792 |
| Tensile Strength | MPa | 0.08 - 0.32 | ASTM D412 |
| Elongation at Break | % | ≥ 40 | ASTM D412 |
| Compression Set | % | ≤ 25 (100ºC, 24h) | ASTM D395 |
| Tear Strength | kN/m | ≥ 1.5 | ASTM D624 |
| Property | Unit | Specification | Test Method |
|---|---|---|---|
| Thermal Conductivity | W/m·K | 1.0 ± 0.2 | ASTM D5470 |
| Operating Temp. Range | ºC | -60 ~ 200 | - |
| Flame Exposure Limit | ºC | Up to 1200 (Ceramized State) | Open Flame Test |
| Ceramization Onset Temp | ºC | ~280 | In-house Test |
| Thermogravimetric Loss | % | < 1.0 (150ºC, 24h) | TGA |
| Ceramic Residue Strength | - | Rigid, Pressure-Resistant Shell | Torch Simulation |
| Property | Unit | Specification | Test Method |
|---|---|---|---|
| Volume Resistivity | Ω·cm | ≥ 1.0 × 10¹³ | ASTM D257 |
| Dielectric Strength | kV/mm | > 6 | ASTM D149 |
| Insulation Resistance | MΩ | ≥ 10 | IEC 60167 |
| CTI (Tracking Index) | V | ≥ 600 | IEC 60112 |
| Property | Unit | Specification | Test Method |
|---|---|---|---|
| Chemical Resistance | - | Water, weak acid/alkali proof | Immersion Test |
| Weather Resistance | - | Excellent | QUV Aging (ASTM G154) |
| UV Resistance | - | Excellent | Outdoor Exposure Test |
| Oxygen Index (LOI) | % | ≥ 28 | ASTM D2863 |
| Property | Unit | Specification | Notes |
|---|---|---|---|
| Roll Width | mm | 1000 / 1200 | Custom sizes available |
| Cutting Tolerance | mm | ± 0.2 | Die-cutting, CNC, Laser |
| Lamination Compatibility | - | PET, PI, Mica, Adhesives | Multi-layer processing supported |
| Ceramic Expansion Ratio | % | 0-5% (low expansion) | Shape stable after firing |
| Adhesion / Bonding | - | Compatible with common adhesives | Surface treatment recommended |
---Innovative Material Solutions for Industrial Excellence
Dachuang Kehua specializes in advanced material technologies designed to meet the demands of modern industries such as automotive, electronics, energy storage, and construction. Our product portfolio focuses on thermal management, sealing, insulation, and vibration control, ensuring reliability, safety, and efficiency in high-performance applications. Below are our core product lines:
Sealing Rings: Precision-engineered for leak-proof performance in mechanical and electronic systems.
Cushioning Materials: Superior shock absorption for sensitive equipment and industrial machinery.
Battery Pack Seals: Critical for EV battery integrity, offering airtight and heat-resistant protection.
Liquid Cooling Plate Supports: Stabilizes thermal management systems in electronics and electric vehicles.
Inter-Cell Filling: Enhances thermal stability and prevents movement in battery modules.
High-temperature resistance and chemical durability for seals, gaskets, and industrial components.
Ideal for harsh environments requiring exceptional thermal and mechanical performance.
CR (Chloroprene Rubber) Foam: Weather-resistant solutions for outdoor and marine applications.
EPDM Foam: Automotive-grade waterproofing and heat resistance for seals and insulation.
Melamine Foam: Lightweight, fire-retardant material for acoustic and thermal insulation.
PP (Polypropylene) & PC (Polycarbonate) Sheets: Electrical and thermal insulation for electronics and machinery.
Customizable thickness and density to meet specific industry requirements.
MPP (Modified Polypropylene): Enhanced chemical resistance for industrial applications.
PEF (Polyethylene Foam): Moisture-resistant cushioning for packaging and construction.
Aerogel Insulation: Ultra-lightweight, high-performance thermal barrier for extreme temperatures.
Insulation Cotton: Cost-effective fiber-based thermal management.
Mica Sheets: High-temperature electrical insulation for industrial equipment.
Battery Cell Spacers: Prevents short circuits in energy storage systems.
Heat-Insulating Materials: Engineered to manage thermal dispersion in automotive and industrial systems.
Base Polymers:
High-purity solid or liquid silicone rubber (HTV or LSR grade) with excellent thermal stability and processability.
Ceramizing Fillers:
Proprietary inorganic additives that vitrify under high heat to form a rigid ceramic barrier.
Functional Additives:
Curing agents (typically platinum-catalyzed or peroxide-based)
Flame retardants (non-halogenated, UL 94 V-0 grade)
Thermal stabilizers and structural enhancers
Colorants (non-toxic, high-temperature resistant)
Optional: Antistatic or conductive agents for specific applications
Regulatory Compliance:
All raw materials must conform to relevant standards such as RoHS, REACH, UL, and if applicable, FDA or automotive/military specifications.
Define target parameters:
Density, hardness, flexibility
Thermal resistance (up to 1200°C), ceramization behavior
Electrical insulation, structural integrity post-burning
Conduct bench-scale trials to optimize:
Ceramization onset temperature and structural performance
Foaming ratio (if applicable)
Cure cycle (temperature and time)
Surface finish and dimensional stability
Maintain a digital formulation logbook for version control, traceability, and continuous improvement.
Process Types:
HTV: Internal mixing with precise batch ratios
LSR: A/B component metering and inline mixing
Equipment:
Double planetary mixers
Internal kneaders
Twin-screw compounders
Vacuum mixers (for bubble elimination)
Key Process Controls:
Degassing for void-free compound
Homogeneity of ceramic and elastomer phases
Viscosity measurement and consistency
Molding Techniques:
Compression molding for sheets, slabs, thermal pads
Injection molding for precision or custom-shaped components
Curing Parameters:
Temperature: 120-180°C (initial cure)
Time: 5-20 minutes, dependent on part thickness and geometry
Ceramization Preparation:
Formulation ensures vitrification starts around 280-300°C
End-use exposure results in a durable ceramic structure (up to 1200°C)
Process:
Secondary heat treatment at 200°C for 2-4 hours
Purpose:
Enhance mechanical properties
Eliminate volatiles
Stabilize product for high-spec applications (e.g., aerospace, EV batteries)
Machining Options:
CNC cutting
Laser or waterjet cutting
Die-cutting for high-volume shapes
Value-Added Processing:
Adhesive backing lamination
Surface film application (PET, PI, mica, etc.)
Punching or precision slitting
Mechanical Testing:
Hardness (Shore OO)
Tensile strength, elongation
Density and compression set
Thermal Testing:
Thermal conductivity
Heat resistance and fire simulation
Ceramization quality and structural rigidity post-burn
Electrical Testing:
Volume resistivity
Dielectric strength
Dimensional & Surface Checks:
Thickness, flatness, bubble uniformity
Cell structure (open vs. closed, if foamed)
Certifications:
Implement QA under ISO 9001, with optional compliance to ISO 13485, IATF 16949, or UL 94 V-0 depending on end-use.
Packaging Materials:
Use clean, non-contaminating films or boxes, anti-static if needed
Labeling Information:
Batch number
Production date
Product code and specifications
Storage Conditions:
Cool, dry, UV-protected environment
Avoid prolonged humidity exposure
Maintain complete records for:
Formulation versions and production recipes
Batch production logs
QC test reports and certificates of analysis
Material safety data sheets (MSDS)
Non-conformance records and customer feedback
Digital tracking via ERP / MES systems is recommended for full traceability.
Calibrate key equipment on a scheduled basis
Train operators on material handling and safety protocols
Use real-time data monitoring to track:
Yield rates
Scrap rates
Downtime and cycle times
Implement preventive maintenance across all mixing and molding systems
Hangzhou Dachuangkehua New Material Co., Ltd. ,located in Hangzhou, Zhejiang Province, the National Science and Innovation Corridor of Qingshanhu Science and Technology City.
Is a collection of silicone materials cutting-edge technical talents, independent innovation R & D, production, sales in one of the high-tech innovation enterprises. And build joint laboratory with scientific research institutions to create a scientific research platform.
It has independent intellectual property rights, advanced production equipment and production technology, has been IATF 16949 and ISO 9001 quality system certification. The product has UL/CUL UL157 certification and SGS third party laboratory test certification, and complies with EU RoHS 2.0 and REACH and other hazardous substances control. To provide more valuable and reliable products for global customers.
The main markets are new energy vehicles, energy storage, aircraft, high-speed rail, charging piles, electrical control cabinets, lighting, heating and ventilation equipment, UAV, home appliances, rail transit, outdoor electrical appliances, 5G communications and other industries to provide new materials.
It is used for environmental sealing, protection of outdoor equipment, water and dust prevention, moisture prevention, sealing, heat conduction, light shielding, sound insulation, heat insulation, shock buffering, extreme weather resistance, aging resistance, flame retardant, shielding, etc.
Why Choose Dachuang Kehua?
Industry-Focused Innovation: Tailored solutions for EVs, renewable energy, electronics, and infrastructure.
Quality & Compliance: Materials meet global standards for safety, durability, and environmental resilience.
Customized Engineering: Adaptable designs to address unique client challenges.
1. Are you a factory or a trading company?
Yes. We are a professional factory dedicated to the innovative development and cutting-edge application of polymer materials and high-end electronic adhesives.
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