Thermal Silicone Sheets: Optimal Heat Transfer Solution

Product Details
Customization: Available
Material: Organic Silicone
Application: Household, Medical, Industrial, Agricultural
Still deciding? Get samples of $ !
Request Sample
Manufacturer/Factory & Trading Company

360° Virtual Tour

Diamond Member Since 2021

Suppliers with verified business licenses

Audited Supplier Audited Supplier

Audited by an independent third-party inspection agency

High Repeat Buyers Choice
More than 50% of buyers repeatedly choose the supplier
Fast Delivery
The supplier can deliver the goods within 15 days
100% Finished Products Inspection
The supplier inspects 100% of finished products.
Quality Assurance
The supplier provides quality assurance
to see all verified strength labels (23)
  • Thermal Silicone Sheets: Optimal Heat Transfer Solution
  • Thermal Silicone Sheets: Optimal Heat Transfer Solution
  • Thermal Silicone Sheets: Optimal Heat Transfer Solution
  • Thermal Silicone Sheets: Optimal Heat Transfer Solution
  • Thermal Silicone Sheets: Optimal Heat Transfer Solution
  • Thermal Silicone Sheets: Optimal Heat Transfer Solution
Find Similar Products
  • Overview
  • Product Description
  • Our Advantages
  • Product Parameters
  • Our Production
  • Company Profile
  • Certifications
  • FAQ
Overview

Basic Info.

Model NO.
DC
Certification
ISO, REACH, RoHS
Storage
27ºC in a Cool and Dry Place
Transport Package
Carton, Pallet
Specification
customized
Trademark
Dachuang Kehua
Origin
China
HS Code
3910000000
Production Capacity
1000000 Sqm/Week

Product Description

Product Description

Thermally Conductive Silicone Sheet

(Also known as thermally conductive silicone pad or thermal silicone sheet)

Thermally conductive silicone sheets offer excellent thermal conductivity and high-grade pressure resistance, making them an ideal solution for modern thermal management in the electronics industry. Serving as a superior alternative to traditional silicone grease thermal paste and mica sheets, these sheets are the optimal choice for cooling systems.

Designed for ease of installation, they streamline automated production and simplify product maintenance, combining exceptional craftsmanship with practical functionality.

The thickness and hardness of thermally conductive silicone sheets can be customized to accommodate various design requirements. This flexibility allows them to bridge gaps in thermal conduction channels, compensating for structural tolerances between heat sinks and chips. By mitigating the need for ultra-precise machining of contact surfaces-where flatness and roughness differences would otherwise drive up costs-these sheets maximize the contact area between heat-generating components and heat sinks. As a result, they enhance heat transfer efficiency while reducing overall production costs.
Thermal Silicone Sheets: Optimal Heat Transfer Solution

Our Advantages

Thermally Conductive Silicone Sheets: Advanced Heat Management Solutions

Thermally conductive silicone sheets play a critical role in thermal interface management, offering reliable and efficient heat dissipation in a wide range of electronic and industrial applications. Unlike conventional silicone sheets, these specialized materials are engineered with thermally conductive fillers, making them ideal for transferring heat away from heat-sensitive components such as CPUs, power modules, batteries, and LED systems.

Key Properties of Thermally Conductive Silicone Sheets

Thermally conductive silicone sheets are valued for their unique combination of thermal performance, mechanical flexibility, and electrical insulation. These characteristics make them a preferred choice for engineers designing compact and high-performance systems.

1. Thermal Conductivity

  • The core feature of these sheets is their ability to transfer heat efficiently.

  • Thermal conductivity ranges typically from 1 to 10 W/m·K, depending on the type, concentration, and dispersion of thermally conductive fillers like ceramic, graphite, or metal oxides.

  • This ensures reliable heat transfer from electronic components to heat sinks or chassis, reducing the risk of overheating and improving performance longevity.

2. Flexibility and Conformability

  • The silicone matrix maintains excellent elasticity and softness, allowing the sheets to conform to uneven surfaces and fill micro-gaps between mating components.

  • This helps minimize thermal resistance and ensures consistent contact, which is essential in compact electronic assemblies.

3. Electrical Insulation

  • Despite their thermal conductivity, these sheets provide superior dielectric strength, often exceeding 10 kV/mm, making them ideal for applications where both heat transfer and electrical insulation are required.

  • This dual function ensures component protection from electrical shorts or arc discharge, enhancing system safety.

4. Temperature Resistance

  • Designed for extreme environments, thermally conductive silicone sheets can typically operate within a wide temperature range of -50°C to +200°C.

  • This thermal stability makes them suitable for use in automotive, aerospace, power electronics, and outdoor LED lighting, where exposure to fluctuating or extreme temperatures is common.

5. Chemical and Environmental Resistance

  • The inherent properties of silicone provide excellent resistance to moisture, UV radiation, ozone, and many chemicals, ensuring long-term performance even in harsh environments.

6. Customization Options

  • Available in a variety of thicknesses, hardness levels (Shore A), and surface finishes (e.g., smooth, textured, adhesive-backed), these sheets can be tailored to meet specific thermal, mechanical, and assembly requirements.

  • They can also be die-cut or laminated for precise fit and easy integration into automated assembly processes.

Applications
Thermally conductive silicone sheets are widely used across industries including:

  • Consumer electronics (laptops, mobile devices, power adapters)

  • Automotive electronics (battery modules, ECU systems)

  • LED lighting (thermal pads for heat sinks)

  • Telecom and server hardware (cooling modules, memory chips)

  • Industrial power systems (inverters, converters, motor drives)

Conclusion
Thermally conductive silicone sheets are an indispensable component in modern thermal management strategies. Their blend of heat dissipation, flexibility, and electrical insulation makes them a robust and versatile solution for protecting sensitive electronics and ensuring optimal performance across demanding environments.

Product Parameters
Technical Data Sheet

 

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.

 

Our Production
Thermal Silicone Sheets: Optimal Heat Transfer Solution

Production Management Workflow for Dachuang Kehua Thermal Conductive Silicone Sheet
1. Raw Material Preparation

  • 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

 

2. Formula Development

  • 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

 

3. Mixing & Compounding

  • 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

 

4. Calendering/Forming

  • 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

 

5. Post-Curing & Annealing

  • 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

 

6. Precision Cutting

  • 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

 

7. Quality Assurance

  • 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

 

8. Packaging & Logistics

  • 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)
      Thermal Silicone Sheets: Optimal Heat Transfer Solution

 
Company Profile
Thermal Silicone Sheets: Optimal Heat Transfer Solution

Innovating Silicone Solutions for a Sustainable Future

Company Overview

Hangzhou Dachuang Kehua is a national high-tech enterprise dedicated to the research, development, manufacturing, and sales of high-performance silicone materials. Located in Qingshanhu Science and Technology City, Hangzhou-a strategic hub in China's National Science and Technology Innovation Corridor-we integrate cutting-edge research, advanced production capabilities, and deep industry knowledge to deliver innovative, sustainable silicone solutions to global markets.

Core Business Segments

  • Silicone Rubber & Foam Sheets

  • Silicone Tubes & Strips

  • Oil Seals & Custom-Molded Silicone Components

Industries We Serve

  • New Energy Vehicles (NEV) & EV Battery Systems

  • Energy Storage Systems (ESS) & Solar Photovoltaics (PV)

  • 5G Telecommunications & Consumer Electronics

  • Construction & Heavy Industrial Equipment

  • Aerospace, Healthcare, and Consumer Products

Core Competencies

1. Technological Innovation

  • 15+ Years of R&D Experience: Proprietary silicone formulations and scalable production processes.

  • DC800 Series Liquid Foamed Silicone: Eco-friendly, self-foaming (no external agents), excellent UL94 V-0 flame resistance and IP68 waterproof sealing.

  • Automotive-Grade Materials: Fully compliant with IATF 16949 for EV and ESS applications.

2. International Certifications

  • Quality Management: ISO 9001, IATF 16949

  • Regulatory Compliance: UL/CUL UL157, RoHS 2.0, REACH, SGS

3. Customization Capabilities

  • Tailored solutions in density, hardness, and cell structure (open-cell or closed-cell)

  • Full-service support: Die-cutting, lamination, adhesive backing and prototyping

 

Product Portfolio

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

R&D & Quality Excellence

  • 30+ Performance Tests: Tensile strength, compression set, thermal aging, flame resistance, salt spray resistance, and more

  • Automated Manufacturing: From precision mixing and vulcanization to CNC cutting and post-processing

  • Research Collaborations: Joint labs with top research institutes accelerate innovation and shorten product development cycles

Global Market Presence

Trusted by leading global enterprises, including:

  • CATL, BYD - Leaders in EV battery manufacturing

  • Huawei - Pioneer in 5G infrastructure

  • Top Energy Storage & Solar Technology Providers - Across Asia, Europe, and North America

Why Choose Dachuang Kehua?
Advanced R&D: Constant innovation in high-performance silicone materials
Comprehensive Solutions: From raw materials to finished, application-ready products
Reliable Quality: Stringent QC systems and full traceability across all production stages
Global Standards: Fully aligned with EU, U.S., and automotive regulatory requirements

Contact us today to discuss your custom silicone material needs.

Mission & Vision

Driven by our mission-"Empowering Industrial Upgrades Through Material Science"-Dachuang Kehua is committed to becoming a global leader in silicone materials, supporting the growth of green energy, smart manufacturing, and sustainable development worldwide.

Certifications

Thermal Silicone Sheets: Optimal Heat Transfer SolutionThermal Silicone Sheets: Optimal Heat Transfer Solution

FAQ

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

Send your message to this supplier

*From:
*To:
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now
Contact Supplier