| Customization: | Available |
|---|---|
| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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Advanced Thermal Management Solutions by Dachuang Kehua
Our premium thermal grease delivers optimal heat transfer for critical electronic applications:
Exceptional Thermal Conductivity - Maximizes heat dissipation efficiency
Reliable Electrical Insulation - Prevents short circuits and current leakage
Wide Operating Range - Stable performance from -50°C to 200°C
Engineered for Ease of Use - Low viscosity for smooth application
Safe & Durable - Non-toxic, non-corrosive, odorless, and maintains consistency over time
Key Benefits:
Prevents overheating in high-power components
Maintains performance under extreme temperatures
Protects sensitive electronics without degradation
Our advanced potting solution provides comprehensive protection for electronic assemblies:
Superior Thermal Management - Excellent heat dissipation properties
Complete Environmental Protection - Waterproof, moisture-resistant, and chemical-proof
UL94 V-0 Flame Retardant - Meets strict fire safety standards
Long-Term Reliability - Outstanding aging and vibration resistance
Wide Application Range - Stable across varying temperatures and humidity levels
Key Advantages:
Extends component lifespan by preventing moisture ingress and corrosion
Reduces thermal stress on sensitive circuits
Provides structural support against mechanical stress and vibration
Why Choose Dachuang Kehua?
Technical Expertise - Custom formulations for specific thermal challenges
Quality Assurance - Rigorous testing for consistent performance
Industry-Compliant - Meets international standards for electronics protection
Optimize your thermal management with our engineered solutions.
Dachuang Kehua Potting Adhesive: Superior Protection for Critical Components
Key Features & Benefits:
Exceptional Electrical Insulation
Provides superior dielectric properties to prevent short circuits and safeguard sensitive electronics against environmental hazards.
Unmatched Durability
Withstands extreme temperatures (-50°C to 200°C), moisture, and UV exposure to extend the operational lifespan of encapsulated devices.
Engineered Flexibility
Maintains elasticity post-curing to absorb mechanical stress, vibrations, and thermal expansion-ideal for automotive, industrial, and high-impact applications.
Universal Adhesion
Bonds securely to diverse substrates (metals, plastics, ceramics) without compromising component integrity or performance.
Eco-Safe Formulation
Non-toxic, halogen-free, and RoHS-compliant for use in medical devices, renewable energy systems, and other sensitive applications.
Optimized Process Efficiency
User-friendly application with rapid, predictable curing to streamline production and reduce downtime.
Chemical & Aging Resistance
Retains protective properties against oils, solvents, and corrosive agents, ensuring reliability in harsh industrial environments.
Industry-Proven Performance
Dachuang Kehua Potting Adhesive delivers robust, long-lasting encapsulation for electronics in automotive, energy storage, 5G infrastructure, and beyond-combining cutting-edge material science with stringent quality standards.
| 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 |
Dachuang Kehua's advanced production workflow ensures superior quality and performance in every batch of potting adhesive.
Base Components: High-purity silicone resins, curing agents, and performance-enhancing additives (flame retardants, stabilizers, pigments)
Precision Formulation: Materials are weighed and mixed in exact ratios to achieve target properties:
Optimal viscosity
Temperature resistance (-50°C to 250°C)
Electrical insulation
Uniform Blending: High-shear mixing under controlled temperature/pressure
Additive Integration: Custom pigments, thickeners, or specialty fillers added as required
Bubble Elimination: Vacuum processing ensures defect-free consistency
Vacuum Chamber Treatment: Removes 99%+ of trapped air to prevent:
Electrical voids
Thermal hotspots
Mechanical weaknesses
| Method | Application | Advantage |
|---|---|---|
| Molding | Complex shapes (sensors, automotive parts) | Perfect dimensional accuracy |
| Automated Dispensing | High-volume electronics | Millimeter-level precision |
Room Temperature Cure: 24-72 hour process for stress-free hardening
Heat Accelerated Cure: 60-150°C oven curing (30min-4hr) for rapid turnaround
Dual-Cure Systems: UV-initiated + thermal completion for hybrid applications
Performance Enhancement: Secondary heat treatment improves:
30% greater tensile strength
Enhanced chemical resistance
Superior thermal stability
Electrical Testing: 100% dielectric strength verification
Thermal Analysis: DSC/TGA for temperature resistance validation
Mechanical Tests: ASTM D412/D624 compliance checks
Oxygen-Moisture Barrier Bags with desiccant
Precision Dispensing Options:
• Cartridges (50ml-300ml)
• Bulk pails (5kg-20kg)
• Custom pre-mixed dual-component kits
Climate-controlled storage (15-25°C)
Global shipping with real-time temperature monitoring
Why Our Process Matters:
Zero Defect Policy: 100% batch traceability
IATF16949/ISO9001 Certified production
Custom Engineering Support from R&D to delivery
This controlled manufacturing process ensures our potting adhesives deliver:
• 10+ year service life in harsh environments
• UL94 V-0 flame resistance
• IP68 waterproof protection
| 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
Joint sealing in glass and stone curtain walls
Structural glazing in glass curtain wall systems
Insulated Glass Units (IGUs):
As an advanced building material, IGUs provide superior thermal insulation, soundproofing, aesthetic appeal, and reduced structural load. Typically constructed with two or three glass panes, they utilize high-strength, airtight bonding adhesives to seal the glass to an aluminum spacer frame containing desiccants. This creates a dry air gap between the panes, delivering:
Enhanced thermal and acoustic performance
Lightweight, sleek aesthetics
Frost resistance and energy efficiency
IGUs outperform conventional double-glazed windows and are globally recognized as the standard for modern architectural glazing.
Key Technical Advantages:
Silicone Sealant: UV-resistant, maintains elasticity (-40°C to 150°C), and adheres to glass, metal, and stone.
IGUs: U-values as low as 1.0 W/(m²·K), noise reduction up to 50 dB, and compliance with international standards (EN 1279, ASTM E2190).
2.Building Doors and Windows:
With the continuous improvement in people's quality of life, there is growing emphasis on energy efficiency, environmental protection, safety, noise reduction, sun protection, and durability in building doors and windows. Although sealants are auxiliary materials in the manufacturing process and account for a small portion of the total cost, they play a crucial role in determining the performance of doors and windows-particularly in waterproofing, air tightness, thermal insulation, and soundproofing.
Since most modern doors and windows are made of metal alloys, high-performance sealants with excellent adhesion between glass and metal are essential. These sealants not only provide superior weather resistance and thermal stability (withstanding extreme temperatures) but also ensure a strong, fully cured bond between dissimilar materials, achieving an effective and long-lasting seal for doors and windows.
Key Points:
Performance Requirements: Energy efficiency, noise reduction, durability.
Critical Role of Sealants: Waterproofing, air sealing, insulation, soundproofing.
Material Compatibility: Strong adhesion between glass & metal (e.g., aluminum alloys).
Durability: Weather-resistant, temperature-stable, and long-lasting bonding.
3.Prefabricated Buildings:
Prefabricated construction aligns with China's current policy focus on green development and low-carbon energy efficiency, while also reducing labor intensity and improving working conditions. It is poised to become an inevitable trend in China's construction industry.
However, waterproofing and sealing solutions for prefabricated buildings have emerged as a critical research challenge. Sealants are typically employed for waterproofing and sealing purposes. Given that building exteriors are directly exposed to atmospheric conditions-including temperature fluctuations, humidity, UV radiation, as well as uncontrollable factors like earthquakes and acid rain-the performance of these sealants is subjected to extreme demands.
Key Considerations:
Policy Alignment: Supports green, low-carbon development initiatives
Operational Advantages: Reduces manual labor and enhances worksite safety
Technical Challenge: External sealants must withstand:
Routine stressors (thermal cycling, moisture, UV exposure)
Extreme events (seismic activity, chemical corrosion)
Material Requirements: Sealants must maintain:
Long-term weather resistance
Elastic recovery after deformation
Chemical stability in harsh environments
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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