| Customization: | Available |
|---|---|
| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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Dachuang Kehua thermal conductive silicone sheet is a thermal conductive medium material synthesized through a special process using silicone as the substrate and various auxiliary materials such as metal oxides. It is used to reduce the contact thermal resistance between the heat source surface and the contact surface of the radiator component. It is specially designed and produced for using gaps to transfer heat. It can fill gaps, complete heat transfer between the heating and cooling parts, and also serve as insulation, shock absorption and sealing. It can meet the design requirements of equipment miniaturization and ultra-thinness, and is highly processable and practical, with a wide range of thickness applications. It is an excellent thermal conductive filling material. It is used for control main boards, new energy vehicles, LED lighting, communication equipment, computers, PC servers, machine room stations, switching power supplies, backlight modules and any materials that need to be filled and Heat spreader of electronic and electrical products. Material selection content: Thermal conductive silicone sheet, with fiberglass silicone film, with silicone tape silicone film Thermal conductivity range: 1-8W/m · k Thickness range: 0.3-20mm Hardness range: 15-75 degrees (Shore C) Colors: black, light blue, blue, pink, green, purple, yellow
Efficient Heat Dissipation: Thermal conductivity ranging from 1.0-6.0 W/mK (depending on grade) to suit diverse cooling needs.
Uniform Heat Distribution: Eliminates hot spots in electronics, LEDs, power devices, and automotive systems.
Dielectric Strength: High voltage resistance (≥5 kV/mm), ideal for sensitive electronic components.
Non-Conductive: Safe for use in PCBs, batteries, and high-power applications.
Low Hardness (Shore OO 20-60): Conforms to uneven surfaces, reducing thermal resistance at interfaces.
High Compressibility: Ensures minimal stress on components while maintaining thermal performance.
Wide Temperature Range: Stable performance from -50°C to +200°C (short-term up to 250°C).
Weather/Oil/Chemical Resistant: Withstands UV, ozone, moisture, and corrosive environments.
Long Service Life: Resists aging, hardening, or cracking under prolonged use.
Thickness Options: 0.3-10 mm (standard or custom).
Die-Cut Solutions: Pre-cut shapes for LEDs, IGBTs, CPUs, and EV battery packs.
Adhesive Backing: Optional PSA (pressure-sensitive adhesive) for simplified assembly.
Non-Toxic & Halogen-Free: Complies with RoHS, REACH, UL 94 V-0 (flame-retardant grades available).
Low Outgassing: Critical for aerospace and medical devices.
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|
Item |
Standard |
Unit |
DC1010 |
DC1015 |
DC1020 |
DC1030 |
|
1 |
Thickness |
ASTM D374 |
mm |
0.3-20 |
0.3-20 |
0.3-20 |
0.3-20 |
|
2 |
proportion |
ASTM D792 |
g/cc |
1.8±0.1 |
1.9 ±0.1 |
2.4±0.1 |
2.9±0.1 |
|
3 |
Hardness |
ASTM D2240 |
Shore 00 |
15-50 |
20-50 |
30-50 |
30-60 |
|
4 |
Temperature |
EN344 |
°C |
-40-200 |
-40-200 |
-40-200 |
-40-200 |
|
5 |
Dielectric constant |
ASTM D150 |
/ |
4.8 |
4.8 |
5.3 |
5.4 |
|
6 |
Volumetric resistivity |
ASTM D257 |
Q-cm |
1.0*10^12 |
1.0*10^12 |
1.0*10^12 |
1.0*10^12 |
|
7 |
Voltage resistance |
ASTM D149 |
kV/mm |
4 |
4 |
4 |
4 |
|
8 |
Flame retardancy |
UL-94 |
/ |
V-0 |
V-0 |
V-0 |
V-0 |
|
9 |
Thermal conductivity |
ASTM D5470 |
W/m K |
1 |
1.5 |
2 |
3 |
|
10 |
Environmental Testing |
RoHS REACH |
/ |
Qualified |
|||
|
11 |
Remarks |
Cutting and processing of rolls, sheets and backings are available. Special thermal conductivity, performance parameters, width, thickness and color can be customized and adjusted upon request. |
|||||
|
Item |
Standard |
Unit |
DC1040 |
DC1050 |
DC1060 |
DC1080 |
|
|
1 |
Thickness |
ASTM D374 |
mm |
0.3-20 |
0.3-20 |
0.3-20 |
0.3-20 |
|
2 |
proportion |
ASTM D792 |
g/cc |
3.2±0.1 |
3.3 ±0.1 |
3.5±0.1 |
3.5±0.1 |
|
3 |
Hardness |
ASTM D2240 |
Shore 00 |
40-60 |
40-60 |
40-60 |
50-75 |
|
4 |
Temperature |
EN344 |
°C |
-40-200 |
-40-200 |
-40-200 |
-40-200 |
|
5 |
Dielectric constant |
ASTM D150 |
/ |
6 |
6.2 |
6.2 |
6.2 |
|
6 |
Volumetric resistivity |
ASTM D257 |
Q-cm |
1.0*10^12 |
1.0*10^12 |
1.0*10^12 |
1.0*10^12 |
|
7 |
Voltage resistance |
ASTM D149 |
kV/mm |
4 |
6 |
6.1 |
6.1 |
|
8 |
Flame retardancy |
UL-94 |
/ |
V-0 |
V-0 |
V-0 |
V-0 |
|
9 |
Thermal conductivity |
ASTM D5470 |
W/m K |
4 |
5 |
6 |
8 |
|
10 |
Environmental Testing |
RoHS REACH |
/ |
Qualified |
|||
|
11 |
Remarks |
Cutting and processing of rolls, sheets and backings are available. Special thermal conductivity, performance parameters, width, thickness and color can be customized and adjusted upon request. |
|||||
Base Materials:
High-purity silicone rubber (LSR/HCR)
Thermally conductive fillers (Al2O3, BN, AlN, or hybrid compositions)
Additives:
Curing agents (peroxide/platinum catalyst)
Coupling agents (for filler dispersion)
Flame retardants (for UL 94 V-0 grades)
QC Checks:
Filler purity & particle size distribution
Silicone viscosity verification
Moisture content analysis
Customization Parameters:
Thermal conductivity (1.0-6.0 W/mK)
Hardness (Shore OO 20-60)
Thickness (0.3-10mm)
Lab-Scale Trials:
Filler loading optimization
Rheology testing for processability
Thermal impedance measurements
Process:
Multi-stage mixing (filler pre-treatment → masterbatch → final mix)
Vacuum degassing (<1kPa) to remove air pockets
Equipment:
Planetary mixers with torque monitoring
Three-roll mills for filler dispersion
Critical Controls:
Filler sedimentation rate
Scorch time measurement
Batch homogeneity testing
Methods:
Continuous calendering (for thin sheets)
Compression molding (for thick pads)
Process Parameters:
Gap accuracy: ±0.02mm
Line speed: 0.5-3 m/min
Temperature zones: 80-120°C (pre-heat) → 150-180°C (cure)
In-Line Monitoring:
IR thickness gauges
Surface defect detection cameras
Thermal Treatment:
Stage 1: 180°C × 2hr (primary crosslinking)
Stage 2: 200°C × 4hr (post-cure for low volatiles)
Purpose:
Enhance thermal stability
Reduce compression set
Improve dielectric properties
Technologies:
CNC die-cutting (±0.1mm tolerance)
Laser cutting (for complex shapes)
Waterjet (for thick sheets)
Secondary Processing:
PSA lamination (acrylic/silicone adhesives)
EMI shielding layer integration
Multi-layer stacking for TIM assemblies
Testing Protocols:
| Test Category | Methods | Standards |
|---|---|---|
| Thermal | Hot disk method | ASTM D5470 |
| Mechanical | Tensile/compression | ISO 37 |
| Electrical | Dielectric strength | IEC 60243 |
| Environmental | Thermal cycling (-40°C~150°C) | MIL-STD-810G |
Statistical Process Control:
CpK >1.33 for critical parameters
Lot traceability with QR coding
Special Handling:
Anti-static interleaving paper
Humidity-controlled (<30% RH) packaging
ESD-safe containers for electronic grades
Labeling:
Thermal conductivity value
Directional heat flow marking
Compliance markings (UL/RoHS)
Innovating Silicone Solutions for a Sustainable Future
Hangzhou Dachuang Kehua is a national high-tech enterprise specializing in the R&D, production, and sales of high-performance silicone materials. Headquartered in Qingshanhu Science and Technology City, Hangzhou-a key hub in China's National Science and Technology Innovation Corridor-we combine cutting-edge research, advanced manufacturing, and industry expertise to deliver innovative silicone solutions for global industries.
Silicone Rubber & Foam Sheets
Silicone Tubes & Strips
Oil Seals & Custom Rubber Components
New Energy Vehicles (NEV) & EV Batteries
Energy Storage Systems (ESS) & Solar (PV)
5G Communications & Electronics
Construction & Industrial Machinery
Aerospace, Medical, and Consumer Goods
15+ Years of R&D Expertise - Proprietary formulations and advanced production processes.
DC800 Series Liquid Foamed Silicone - No external foaming agents, eco-friendly, superior flame retardancy (UL94 V-0), and IP68 sealing.
Automotive-Grade Materials - Compliant with IATF16949 for EV/ESS applications.
Quality Systems: ISO9001, IATF16949
Global Compliance: UL/CUL UL157, RoHS 2.0, REACH, SGS
Tailored density, hardness, and structure (open/closed-cell).
Die-cutting, laminating, and adhesive backing services.
| Product Series | Key Features | Applications |
|---|---|---|
| DC800 Foamed Silicone | Low/medium/high density, -55°C to 200°C, IP68 sealing | EV battery cushioning, 5G EMI shielding |
| DC900 Rigid Foam | Structural support, high compression resistance | Energy storage, industrial gaskets |
| DC10 Thermal Pads | High thermal conductivity, lightweight | Battery cooling, electronics heat dissipation |
| DC400 Fireproof Silicone | Ceramicizes at high temps, thermal runaway protection | ESS fire barriers, aerospace |
| DC600 Silicone-PTFE | Chemical/corrosion resistant | Medical, chemical processing |
30+ Performance Tests: Tensile strength, thermal aging, flame retardancy, salt spray.
Automated Production: Precision mixing, vulcanization, cutting for consistent quality.
Joint Labs with Research Institutes: Accelerating material innovation.
We partner with global industry leaders, including:
CATL, BYD (EV batteries)
Huawei (5G infrastructure)
Top Energy Storage & Solar Manufacturers
High-Tech R&D - Continuous innovation in silicone materials.
End-to-End Solutions - From raw material to finished product.
Reliable Quality - Strict QC, traceable production.
Global Compliance - Meets EU, US, and automotive standards.
Contact Us for tailored silicone solutions!
With the mission of "Empowering Industrial Upgrades Through Material Science," Dachuang Kehua is committed to continuous innovation, aiming to establish itself as a global leader in silicone materials and contribute to the sustainable development of green energy and smart manufacturing.
Q: Are you trading company or manufacturer ?
A: We are manufacturer, our factory in Dongguan city, China. Welcome to visit us.
Q: How long is your delivery time?
A: Each 100,000 pieces, we need about 3 days to produce.
Q: Do you provide samples ? is it free or extra ?
A: Sample is available, please you need to pay for it.
Q: How to customize a sample?
A: Please send us design of your products, such as size, shape, etc. We can customize your products
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