| Customization: | Available |
|---|---|
| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
|
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High-Density Micro-Foamed Silicone: A Robust Material for Demanding Applications
Engineered for superior performance, high-density micro-foamed silicone is a durable, thermally stable, and chemically resistant material. Constructed from highly resilient silicone, this foam sheet excels in extreme conditions, offering exceptional resistance to heat, weathering, ozone, UV exposure, and a wide variety of chemicals. It is non-toxic, chemically inert, and maintains consistent physical properties across an impressive temperature range of -60°C to 230°C.
Unlike conventional foams, high-density silicone foam does not deteriorate, dry out, or lose integrity over time, ensuring long-lasting reliability. These properties make it the ideal choice for challenging environments-particularly where standard foams fail under high temperatures or harsh chemical exposure. Whether for industrial, aerospace, or specialized sealing applications, this material delivers unmatched performance and durability.
Wide operating range (-60°C to +230°C) ensures performance in extreme conditions
Retains shape & functionality without deformation under intense heat or cold
Superior thermal insulation due to its microcellular foam structure
Highly resistant to UV, ozone, water, oils, acids, alkalis, and harsh chemicals
Long-lasting durability in both indoor and outdoor settings
Low flammability, anti-aging, and resistant to discoloration or environmental breakdown
Premium silicone construction ensures outstanding resilience and elasticity
Excellent shock absorption, vibration damping, and impact resistance
Withstands wear & tear, abrasion, and mechanical stress over prolonged use
Cellular foam design reduces weight while maintaining structural integrity
High-density formulation enhances strength, stability, and surface finish
Compressible & recoverable, ideal for gaskets, seals, and protective padding
Available in open-cell (breathable, sound-absorbing) or closed-cell (moisture-proof, sealing) variants
Effective for thermal barriers, acoustic dampening, and vibration control
Non-toxic & hypoallergenic, safe for medical and food-contact applications
Medical-grade & food-grade options, compliant with FDA, REACH, and RoHS standards
Ideal for healthcare, infant products, and food processing equipment
Strong dielectric properties, even in foam form
Suitable for electronic gaskets, insulating pads, and protective components
Adaptable to molding, extrusion, die-cutting, and other fabrication methods
Customizable in density, hardness, color, and cell structure
Scalable for mass production with consistent quality
High Density Foamed Silicone - Technical Parameters
High density foamed silicone combines the lightweight, cushioning benefits of foam with the durability, thermal stability, and chemical resistance of silicone rubber. The following parameters highlight the key performance metrics and customization options for this advanced material.
|
Property |
Unit |
Test |
Typical value |
|
|
Physical property |
||||
|
Thickness |
mm |
- |
0.4-4 |
|
|
Color |
- |
- |
Grey |
|
|
Appearance |
- |
- |
Matte |
|
|
Hardness(Shore A) |
HA |
ASTM D2240 |
52±5 |
|
|
Density |
g/cm³ |
ASTM D1056 |
1.3 |
|
|
Tensile strength |
Mpa |
ASTM D412 |
3.0 |
|
|
Elongation at break |
% |
ASTM D412 |
12.0 |
|
|
Shearing strength |
Mpa |
ASTM C273/C273M |
1.2 |
|
|
Compressive stresses |
Mpa |
ASTM D1056 |
compressed 10% |
0.4 |
|
compressed 20% |
0.9 |
|||
|
compressed 30% |
1.6 |
|||
|
compressed 40% |
3.0 |
|||
|
Tearing strength |
kN/m |
ASTM D624 |
3.8 |
|
|
Water absorption |
% |
ASTM D1056 |
<5 |
|
|
Flame retardancy |
- |
UL94 |
V0(<2mmT,V1) |
|
|
Electrical and Thermal Performance |
||||
|
Thermal conductivity |
W/(m·k) |
ASTM D5470 |
0.15 |
|
|
Dielectric Strengths |
kv/mm |
ASTM D149 |
3.5 |
|
|
Recommended temperature |
ºC |
SAE J-2236 |
-55+200 |
|
|
Recommended maximum temperature for indirect use |
ºC |
|
250 |
|
Base Materials: High-purity silicone rubber (liquid LSR or solid HTV)
Foaming Agents: Chemical (e.g., hydrazine derivatives) or physical (e.g., nitrogen, CO)
Additives: Curing agents (platinum-based), stabilizers, flame retardants, colorants
Compliance: Ensure materials meet FDA, RoHS, REACH, and industry-specific standards
Key Checkpoint: Supplier certification & material batch testing
Define Specifications: Density, hardness, elasticity, thermal/chemical resistance
Lab Trials: Optimize foaming ratio, cell structure (open/closed), curing parameters
Data Tracking: Maintain a formulation database for consistency and future refinements
Best Practice: Accelerated aging tests to validate long-term performance
Equipment: Double planetary mixers, internal mixers, or two-component LSR machines
Process Control:
Precise ratio mixing (A/B components)
Degassing to eliminate air bubbles
Viscosity, homogeneity, and temperature checks
Critical Factor: Avoid premature curing during mixing
Molding Methods:
Compression Molding (sheets, slabs)
Injection Molding (complex shapes, high volume)
Foaming Activation:
Thermal decomposition (chemical agents)
Gas injection (controlled cell structure)
Curing Parameters:
Temp: 120-180°C
Time: 5-20 min (varies by thickness & geometry)
Optimization Tip: Adjust curing profiles for uniform cell distribution
Purpose: Remove volatiles, enhance mechanical properties
Typical Conditions: 200°C for 2-4 hours (critical for medical/food-grade products)
Methods: CNC, waterjet, die-cutting, laser cutting
Secondary Processing:
Lamination (adhesive backings, protective films)
Surface texturing or embossing
Quality Focus: Ensure burr-free edges and dimensional accuracy
Physical Properties: Hardness (Shore A), density, tensile strength, elongation
Thermal Performance: Heat resistance, thermal conductivity
Structural Integrity: Cell uniformity, open/closed-cell ratio
Dimensional Checks: Thickness, flatness, tolerances (±0.1mm typical)
Certifications: ISO 9001, ISO 13485 (medical), IATF 16949 (automotive)
Process Control: Statistical Process Monitoring (SPC) for consistency
Materials: Non-contaminating, anti-static, moisture-resistant
Labeling Requirements:
Lot number
Manufacture date
Material specs (density, hardness, grade)
Storage Conditions: Cool, dry, UV-protected environment
Traceability: Barcode/QR code tracking for inventory management
Records to Maintain:
Batch formulations & process logs
QC test reports
Compliance certificates
Customer feedback & defect analysis
Digital Tools: ERP/MES for real-time production tracking
Best Practices:
Regular equipment calibration & preventive maintenance
Operator training programs
Monitor KPIs (yield rate, scrap rate, cycle time)
This structured production workflow ensures consistent, high-quality foamed silicone with precise control over material properties, compliance, and performance. By integrating strict QC measures, traceability, and process optimization, manufacturers can achieve high yields, minimal waste, and superior product reliability for demanding industries.
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| Silicone base quality | Viscosity, purity, batch uniformity | Material CoA, viscosity meter |
| Foaming agent quality | Activation temperature, decomposition profile | DSC/TGA analysis |
| Additives | Functionality (curing agent, color, antistatic, etc.) | Visual, functional check, TDS review |
| Storage conditions | Proper labeling, shelf life, contamination-free | Warehouse audit |
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| Mixing uniformity | Homogeneity of compound | Visual check, small test mold |
| Degassing efficiency | Air bubble removal | Vacuum check, visual bubble count |
| Batch consistency | Color, viscosity, reactivity | Rheometer, rotational viscometer |
| Temperature control | Maintain ideal mix temp (esp. for LSR) | Digital thermometer |
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| Mold temperature | Consistent curing/foaming activation | Thermocouples, infrared sensors |
| Foaming uniformity | Consistent bubble size & distribution | Cross-section inspection |
| Cell structure | Closed-cell or open-cell confirmation | Microscopic or dye-penetration test |
| Curing completeness | Ensure full vulcanization | Solvent rub test, tensile strength check |
| Dimensional accuracy | Part dimensions, thickness uniformity | Vernier calipers, laser profile gauge |
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| Hardness | Shore A (typ. 16-20 for foamed silicone) | Shore A durometer (ASTM D2240) |
| Density | Confirm correct foaming level | Gravimetric method (ASTM D792) |
| Tensile strength | Tear resistance and stretch durability | Universal testing machine (ASTM D412) |
| Elongation | % elongation at break | Tensile test (ASTM D412) |
| Compression set | Permanent deformation after compression | ASTM D395 |
| Recovery rate | Bounce-back rate after deformation | Compression recovery test |
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| UV resistance | Surface discoloration or degradation | UV chamber exposure (ASTM G154) |
| Water absorption | Measure weight increase after submersion | ASTM D570 |
| Chemical resistance | Resistance to oils, solvents, acids | Soak test in target chemical environment |
| Flame resistance | Self-extinguishing or not | UL94 or ASTM D635 (if applicable) |
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| Surface texture | Grid or smooth pattern quality | Visual / tactile inspection |
| Defects | Cracks, pinholes, inclusions | Visual inspection under light |
| Color uniformity | Consistent coloring across batch | Visual + colorimeter (optional) |
| Checkpoint | What to Check | Method / Standard |
|---|---|---|
| Traceability | Batch number, production date, operator log | Labeling + system records |
| Label accuracy | Specs, warning, certification labels | Checklist-based inspection |
| Packaging integrity | Damage, contamination, sealing | Drop test, vibration test (if needed) |
| Certifications | RoHS, REACH, FDA, etc. compliance | Third-party testing reports / CoC |
SPC (Statistical Process Control) charts
FMEA (Failure Mode and Effects Analysis)
Control Plans
First Article Inspection (FAI)
Process Capability Index (Cp, Cpk) monitoring
Internal Audits & ISO 9001/ISO 13485 compliance
| Category | Description |
|---|---|
| Packing Type | - Roll packing (standard: 30-50 kg/roll). - Customized packing available (per customer requirements). |
| Packing Material | - Standard: Inner PE film + outer woven bag. - Reinforced: Inner centrifugal paper + outer woven bag; palletized upon request. |
| Shipping Marks | Neutral packing with printed marks (customizable labels if needed). |
| Lead Time | 1-5 days after PO confirmation and 30% advance payment. |
| Delivery Time | Guaranteed on-time delivery; expedited options for urgent orders. |
| Freight Options | - Sea: FCL/LCL. - Air: Fast shipping for time-sensitive needs. |
| Special Services | - Custom cutting/die punching. - Reversed adhesive backing available. |
Dachuang Kehua's foamed silicone is an advanced engineering material designed for sealing, insulation, shock absorption, and thermal management in extreme environments. Its lightweight cellular structure, flexibility, and resistance to heat/chemicals make it ideal for industries demanding reliability, durability, and precision performance.
New Energy Vehicles (NEV)
Battery PACK thermal insulation and protection
Soft-pack cell clamping and gap filling
Energy Storage Systems
Liquid-cooled cabinet sealing rings
Thermal conduction and structural support for cooling plates
Renewable Energy & Photovoltaics
Sealing for photovoltaic energy storage inverters
Long-term weather-resistant gaskets for solar system
Construction & Industrial Infrastructure
Weatherproof sealing strips for steel structure enclosures
Office building curtain wall and window system gaskets
The DC800 series from Dacchuang Kehua New Materials Co., Ltd. is a high-performance foamed silicone material engineered for demanding industrial applications. Known for its lightweight composition, exceptional elasticity, and resistance to extreme temperatures, the DC800 series is widely utilized across electronics, automotive, medical, and industrial sectors. Its performance is validated by multiple internationally recognized certifications, underscoring its quality and reliability.
Standard: ASTM D1056-20
Test Protocol: 1000 thermal cycles (-55°C to 125°C), 50% compression
Results:
DC800-015: 1.1%
DC800-020: 1.3%
DC800-025: 1.6%
DC800-030: 2.3%
DC800-035: 3.1%
DC800-042: 3.4%
DC800-045: 4.2%
DC800-050: 3.9%
DC800-055: 4.0%
Certification Body: SGS
Highlights: Demonstrates outstanding long-term resilience and thermal stability across the full series.
Standard: GB/T 1695-2005
Results:
DC800-035: 3.0 kV/mm
DC800-042: 3.1 kV/mm
DC800-045: 3.1 kV/mm
Certification Body: SGS
Highlights: Ensures excellent insulation properties for high-voltage and sensitive electronic applications.
RoHS: Fully compliant with EU Directive 2011/65/EU and its amendment (EU) 2015/863; all restricted substances within regulatory thresholds.
REACH: No SVHCs (Substances of Very High Concern) detected.
Halogen-Free: Non-detectable levels of fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).
Certification Body: SGS
Highlights: Environmentally friendly and non-toxic; suitable for applications requiring strict material safety.
Standard: ASTM D1056-14
Test Protocol: 180° bend at -55°C for 24 hours
Results: No visible cracking or deformation
Highlights: Maintains flexibility and integrity in extremely low temperatures, ideal for cold-environment applications.
Broad Temperature Resistance
Operational range: -55°C to 125°C
Maintains stable performance across 1000 thermal cycles
Reliable Mechanical Strength
Compression set ≤ 4.2% across all variants
Resilient with minimal long-term fatigue
Superior Electrical Insulation
Dielectric strength ≥ 3.0 kV/mm
Optimized for sensitive electronic insulation needs
Full Environmental Certification
Certified RoHS, REACH, and halogen-free
Suitable for medical, consumer, and food-grade applications
Customizable & Versatile Product Line
Available in grades from DC800-015 to DC800-055
Customizable in thickness, hardness, and functional attributes
Electronics: Shock-absorbing pads, EMI shielding seals
Automotive: Weather seals, vibration dampening components
Medical Devices: Eco-safe materials for sensitive applications
Industrial Equipment: Durable gaskets and sealing systems
All certifications are issued by SGS, a globally recognized third-party testing body.
Traceable test reports include:
Compression Set: SUIN21080062XXMR_CN
Dielectric Strength: SHIN210805363XMR_CN
Environmental Compliance: SHAEC2116203002/4002
With a robust foundation of international certifications and tested performance metrics, Dacchuang Kehua's DC800 foamed silicone series is an ideal material choice for high-reliability and safety-critical applications. We remain committed to delivering innovative, environmentally conscious, and high-performance silicone solutions.
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.
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