| Customization: | Available |
|---|---|
| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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Dachuang Kehua Potting Silicone is a high-performance, versatile silicone material designed for potting and encapsulating electronic components. It offers superior protection against environmental factors like moisture, dust, and extreme temperatures, making it ideal for safeguarding sensitive devices in industries such as electronics, automotive, and renewable energy. Known for its excellent electrical insulation properties, flexibility, and long-lasting durability, Dachuang Kehua Potting Silicone ensures the reliability and longevity of components by providing a robust shield against physical shock and environmental stress. With its easy application and effective curing process, it is a trusted choice for enhancing the performance and protection of electronic systems and machinery.
Key Features of Dachuang Kehua Potting Adhesive:
Excellent Insulation Properties: Dachuang Kehua Potting Adhesive provides superior electrical insulation, making it ideal for protecting sensitive electronic components from short circuits and damage caused by environmental factors.
Durability and Longevity: With outstanding resistance to harsh conditions such as extreme temperatures, moisture, and UV exposure, the adhesive ensures long-term protection and enhances the lifespan of the encapsulated devices.
High Flexibility: The silicone-based adhesive remains flexible even after curing, allowing it to absorb shocks and vibrations, which is crucial for applications in automotive, industrial, and other high-impact environments.
Strong Adhesion: It offers strong bonding capabilities, ensuring secure attachment to a variety of substrates, including metals, plastics, and ceramics, without compromising the integrity of the components.
Non-toxic and Safe: The adhesive is non-toxic and environmentally friendly, making it safe to use in a wide range of applications, including those in sensitive environments like medical devices or renewable energy systems.
Easy Application and Curing: It is simple to apply, with a user-friendly curing process that allows for quick and reliable setup, minimizing downtime in production or repairs.
Resistant to Chemicals and Aging: The potting adhesive maintains its protective properties over time, even when exposed to chemicals, oils, and other corrosive agents, ensuring reliable performance in challenging environments.
These key features make Dachuang Kehua Potting Adhesive a trusted solution for industries requiring high-performance, protective encapsulation for their electronic and mechanical components.
3. parameters| Serial number | Testing item | Implementation Standards | Unit | Brand | ||
| DC2220 | DC2240 | DC2260 | ||||
| 1 | Viscosity A | GB/T2794-2013 | mpa-s | 5100±500 | 5100±500 | 5100±500 |
| 2 | Viscosity B | GB/T2794-2013 | mpa-s | 4900±500 | 4900±500 | 4900±500 |
| 3 | Specific Gravity | GB/13477.2-2002 | / | 0.2 | 0.4 | 0.6 |
| 4 | Operable time | GB/T13477.5-2002 | min | 5 | 20 | 20 |
| 5 | Tensile strength | GB/T528-2009 | Mpa | >0.25 | >0.35 | >0.5 |
| 6 | Elongation | GB/T528-2009 | % | >65 | >90 | >110 |
| 7 | Volume resistance | ASTM D257 | Q-cm | >1014 | >1014 | >1014 |
| 8 | Voltage resistance | ASTM D149 | kV/mm | >18 | >18 | >18 |
| 9 | Flame retardancy | UL-94 | / | V-0 | V-0 | V-0 |
| 10 | Thermal conductivity (W/m-k) | ASTM D5470 | / | 0.05 | 0.07 | 0.09 |
|
Thermally Conductive Potting Adhesives |
||||||
|
Serial number |
Testing items |
Implementation Standards |
Unit |
Brand |
||
|
DC2108 |
DC2110 |
DC2115 |
||||
|
1 |
Viscosity A |
GB/T 2794-2013 |
mpa-s |
5100±500 |
9000±500 |
20500±500 |
|
2 |
Viscosity B |
GB/T 2794-2013 |
mpa-s |
4900±500 |
8900±500 |
20000±500 |
|
3 |
Specific Gravity |
GB/13477.2-2002 |
/ |
1.7 |
1.9 |
2.1 |
|
4 |
Surface drying time |
GB/T13477.5-2002 |
min 25°C |
60 |
60 |
60 |
|
5 |
Curing time |
GB/T13477.5-2002 |
h 25°C |
24 |
24 |
24 |
|
6 |
Volume resistance |
ASTM D257 |
Qcm |
>1014 |
>1014 |
>1014 |
|
7 |
Voltage resistance |
ASTM D149 |
kV/mm |
>18 |
>18 |
>18 |
|
8 |
Flame retardancy |
UL-94 |
/ |
V-0 |
V-0 |
V-0 |
|
9 |
Thermal conductivity (W/m-k) |
ASTM D5470 |
/ |
0.8 |
1 |
1.5 |
Base Materials: The primary components of potting adhesive are silicone resins or polymers, curing agents (hardeners), and any additional fillers or additives (such as flame retardants, stabilizers, or pigments). These are carefully selected based on the desired properties, such as flexibility, temperature resistance, and electrical insulation.
Mixing: The base materials and additives are mixed in precise ratios to achieve the desired viscosity, workability, and curing characteristics. The mixture is usually done in controlled conditions to prevent contamination and ensure consistency.
The mixed ingredients are subjected to a homogenization process, where they are blended under specific conditions (such as heat or vacuum) to remove air bubbles and ensure uniform consistency. This step is crucial for preventing defects in the final product and ensuring that the adhesive performs as expected.
Additives, such as pigments or thickeners, may be incorporated during this stage to achieve the desired color, texture, or performance properties.
Depending on the formulation and the desired application, the potting adhesive mixture may undergo a degassing process. This involves placing the mixture in a vacuum chamber to remove any air trapped during the mixing process. This is important for eliminating bubbles, which could affect the final quality and electrical performance of the adhesive.
Molding: For some potting applications, the adhesive mixture is poured into molds that match the shape and size of the components to be encapsulated (such as circuit boards, sensors, or automotive parts).
Dispensing: In other cases, the potting adhesive is dispensed directly onto the components using automated dispensing equipment. This method is often used for encapsulating individual components in industrial or high-volume production settings.
The potting adhesive undergoes a curing process to harden and solidify. This can happen in two main ways:
Room Temperature Curing: Some potting adhesives are designed to cure at room temperature over a specified period. The curing agents activate at ambient temperatures, allowing for easy application without the need for external heat.
Heat Curing: In other cases, the adhesive may require a curing oven or autoclave to achieve the desired properties. Heat curing speeds up the curing process and ensures a more consistent final product.
The curing time and temperature depend on the specific formulation of the adhesive and the required performance characteristics.
After the initial curing, some potting adhesives undergo post-curing, a process that involves additional heat treatment to further enhance the adhesive's mechanical strength, chemical resistance, and thermal stability.
Post-curing can also be used to remove any residual solvents or volatile compounds from the adhesive, improving its final stability and performance.
Throughout the production process, the potting adhesive undergoes rigorous quality control checks to ensure it meets industry standards and specifications. This may include:
Viscosity and flow tests
Curing time and temperature monitoring
Electrical insulation resistance testing
Thermal stability and mechanical property evaluations
Any defective batches or deviations from quality standards are discarded or reprocessed to maintain consistency.
Once the potting adhesive has been cured and tested, it is packaged for shipment. It can be packaged in various forms, such as jars, cartridges, or bulk containers, depending on the application and customer requirements.
The final product is labeled with instructions for use, safety data sheets, and information on shelf life.
The finished product is stored under specific conditions to maintain its stability (e.g., in cool, dry environments) before being shipped to customers. Proper storage ensures the potting adhesive remains usable until it reaches the end user.
Throughout the entire process, strict quality control and safety standards are followed to ensure the potting adhesive performs optimally in its intended applications, whether that be in electronics, automotive systems, or industrial machinery.
Foamed Silicone Production - Quality Control Key Points| 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
New Energy Vehicles (NEV)
Battery PACK thermal insulation and protection
Soft-pack cell clamping and gap filling
Charging pile sealing solutions
Renewable Energy & Photovoltaics
Sealing for photovoltaic energy storage inverters
Long-term weather-resistant gaskets for solar system
Telecommunications
High-precision sealing for 5G base station equipment
Protection against environmental ingress and electromagnetic interference
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.
Hangzhou Dachuang Kehua New Materials Co., Ltd. - Innovating Advanced Silicone Solutions
Hangzhou Dachuang Kehua New Materials Co., Ltd. is a national high-tech enterprise focused on the research, production, and sales of high-performance silicone materials. Headquartered in Hangzhou's Qingshanhu Science and Technology City-a key hub within China's National Science and Technology Innovation Corridor-the company thrives on cutting-edge R&D and collaboration with top research institutions. With a team of industry experts, Dachuang Kehua has built an integrated platform for innovation, manufacturing, and sales, driving advancements in silicone material applications.
Technology-Driven Innovation
Proprietary production processes for liquid/solid foamed silicone, thermal conductive materials, and potting compounds.
Breakthrough DC800 Series Liquid Foamed Silicone:
No external foaming agents required (eco-friendly).
Superior weather resistance, flame retardancy (UL94 V-0), and rebound performance.
Certified Excellence
ISO9001, IATF16949 (automotive standard).
Global compliance: UL/CUL, RoHS 2.0, REACH, SGS tested.
Industry-Specific Solutions
Tailored for new energy vehicles (EV batteries, charging piles), energy storage, 5G communications, and aerospace, offering:
Sealing (IP68), thermal management, shock absorption, and fireproofing.
1. Core Products
Foamed Silicone:
DC800 Series (low/medium/high density) - IP68 sealing, vibration damping, extreme temps (-55°C to 200°C).
DC900 Series (rigid foam) - Structural support, sound insulation.
Thermal Management:
DC10 Series pads & DC21 Series potting compounds - Lightweight heat dissipation for batteries.
Fireproof Materials:
DC400 Series ceramicized silicone - Thermal runaway protection.
High-Performance Composites:
DC600 Series (silicone + PTFE) - Chemical/corrosion resistance.
2. Key Industries Served
EV/Batteries: Cell cushioning, liquid cooling plate support, PACK sealing (IP68).
Energy Storage: Fireproof insulation, cabinet sealing (IP67).
5G/Electronics: EMI shielding, housing waterproofing.
Construction/Industrial: PV inverters (UL94 V-0), steel structure seals.
Advanced Testing Lab: 30+ performance tests (thermal, mechanical, flame resistance, etc.).
Automated Production: Precision mixing, vulcanization, and cutting for consistency.
Partnering with industry leaders like CATL, BYD, Huawei, and global players in new energy, energy storage, and telecom.
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