DC Series Silicone Heat Conductive and Low Density Foaming Potting Adhesive¹

Product Description Product DescriptionDachuang 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 Foamed Silicone Products - Technical Specification TableSerial numberTesting itemImplementation StandardsUnitBrand    DC2220DC2240DC22601Viscosity AGB/T2794-2013mpa-s5100±5005100±5005100±5002Viscosity BGB/T2794-2013mpa-s4900±5004900±5004900±5003Specific GravityGB/13477.2-2002/0.20.40.64Operable timeGB/T13477.5-2002min520205Tensile strengthGB/T528-2009Mpa>0.25>0.35>0.56ElongationGB/T528-2009%>65>90>1107Volume resistanceASTM D257Q-cm>1014>1014>10148Voltage resistanceASTM D149kV/mm>18>18>189Flame retardancyUL-94/V-0V-0V-010Thermal conductivity (W/m-k)ASTM D5470/0.050.070.09Thermally Conductive Potting AdhesivesSerial numberTesting itemsImplementation StandardsUnitBrand    DC2108DC2110DC21151Viscosity AGB/T 2794-2013mpa-s5100±5009000±50020500±5002Viscosity BGB/T 2794-2013mpa-s4900±5008900±50020000±5003Specific GravityGB/13477.2-2002/1.71.92.14Surface drying timeGB/T13477.5-2002min 25°C6060605Curing timeGB/T13477.5-2002h 25°C2424246Volume resistanceASTM D257Qcm>1014>1014>10147Voltage resistanceASTM D149kV/mm>18>18        >188Flame retardancyUL-94/V-0V-0          V-09Thermal conductivity (W/m-k)ASTM D5470/0.811.5Our production  Production Management Workflow The production of semi-fluid potting silicone is a highly controlled chemical engineering process. Each stage is carefully designed to achieve the ideal balance of softness, stability, and protective performance required for sensitive electronic components.1. Base Polymer PreparationThe process begins with the selection and synthesis of siloxane polymers, which form the backbone of the silicone system. These polymers are chosen for their high purity, consistent viscosity, and ability to remain flexible across wide temperature ranges.2. Incorporation of Functional Fillers & AdditivesTo enhance performance, the base polymer is combined with specialized fillers and additives.Fillers improve mechanical stability and control flow behavior.Adhesion promoters ensure reliable bonding to substrates like metals, plastics, and glass.Curing agents and catalysts regulate the curing speed and crosslink density.Stabilizers improve long-term resistance to heat, oxidation, and moisture.3. Rheology AdjustmentA key step is adjusting the rheological properties to achieve the semi-fluid consistency. The silicone must be flowable enough to penetrate small gaps and coat components uniformly, yet viscous enough to stay in place without excessive dripping or migration.4. Mixing and HomogenizationAll raw materials are blended under carefully controlled conditions. High-shear mixing equipment is used to achieve uniform dispersion of fillers and additives throughout the silicone base. This ensures consistent curing behavior and final material performance.5. DegassingDuring mixing, air bubbles can be entrapped in the material. A vacuum degassing process is applied to eliminate these bubbles, which could otherwise cause voids, weak spots, or electrical failure in the final encapsulated product.6. Quality Control TestingBefore packaging, the semi-fluid silicone undergoes rigorous testing:Viscosity and flowability to confirm proper handling characteristics.Pot life and curing profile to ensure predictable application performance.Hardness and modulus to verify softness and stress-relief properties.Electrical insulation and dielectric strength for electronic safety.7. Packaging and Shelf-Life ManagementFinally, the material is packaged as a two-part system (Base + Catalyst), often in pre-measured containers or dual-cartridge systems for convenient mixing and dispensing. Packaging is designed to protect the material from moisture, light, and contamination, ensuring stable storage and long shelf life. Quality managementFoamed Silicone Production - Quality Control Key Points1. Raw Materials InspectionCheckpointWhat to CheckMethod / StandardSilicone base qualityViscosity, purity, batch uniformityMaterial CoA, viscosity meterFoaming agent qualityActivation temperature, decomposition profileDSC/TGA analysisAdditivesFunctionality (curing agent, color, antistatic, etc.)Visual, functional check, TDS reviewStorage conditionsProper labeling, shelf life, contamination-freeWarehouse audit 2. Compounding / Mixing ControlCheckpointWhat to CheckMethod / StandardMixing uniformityHomogeneity of compoundVisual check, small test moldDegassing efficiencyAir bubble removalVacuum check, visual bubble countBatch consistencyColor, viscosity, reactivityRheometer, rotational viscometerTemperature controlMaintain ideal mix temp (esp. for LSR)Digital thermometer 3. Molding & Foaming Process ControlCheckpointWhat to CheckMethod / StandardMold temperatureConsistent curing/foaming activationThermocouples, infrared sensorsFoaming uniformityConsistent bubble size & distributionCross-section inspectionCell structureClosed-cell or open-cell confirmationMicroscopic or dye-penetration testCuring completenessEnsure full vulcanizationSolvent rub test, tensile strength checkDimensional accuracyPart dimensions, thickness uniformityVernier calipers, laser profile gauge 4. Thermal & Mechanical PropertiesCheckpointWhat to CheckMethod / StandardHardnessShore A (typ. 16-20 for foamed silicone)Shore A durometer (ASTM D2240)DensityConfirm correct foaming levelGravimetric method (ASTM D792)Tensile strengthTear resistance and stretch durabilityUniversal testing machine (ASTM D412)Elongation% elongation at breakTensile test (ASTM D412)Compression setPermanent deformation after compressionASTM D395Recovery rateBounce-back rate after deformationCompression recovery test 5. Chemical & Environmental ResistanceCheckpointWhat to CheckMethod / StandardUV resistanceSurface discoloration or degradationUV chamber exposure (ASTM G154)Water absorptionMeasure weight increase after submersionASTM D570Chemical resistanceResistance to oils, solvents, acidsSoak test in target chemical environmentFlame resistanceSelf-extinguishing or notUL94 or ASTM D635 (if applicable) 6. Surface Quality & AppearanceCheckpointWhat to CheckMethod / StandardSurface textureGrid or smooth pattern qualityVisual / tactile inspectionDefectsCracks, pinholes, inclusionsVisual inspection under lightColor uniformityConsistent coloring across batchVisual + colorimeter (optional) 7. Final Product Testing & DocumentationCheckpointWhat to CheckMethod / StandardTraceabilityBatch number, production date, operator logLabeling + system recordsLabel accuracySpecs, warning, certification labelsChecklist-based inspectionPackaging integrityDamage, contamination, sealingDrop test, vibration test (if needed)CertificationsRoHS, REACH, FDA, etc. complianceThird-party testing reports / CoC Quality Tools to Support ManagementSPC (Statistical Process Control) chartsFMEA (Failure Mode and Effects Analysis)Control PlansFirst Article Inspection (FAI)Process Capability Index (Cp, Cpk) monitoringInternal Audits & ISO 9001/ISO 13485 compliancePackaging  Product applicationsapplication cases for DC Series Silicone Heat Conductive and Low-Density Foaming Potting Adhesive: 1. LED Lighting ModulesEncapsulation of high-power LEDs to ensure thermal dissipation.Protection against moisture, dust, and mechanical shock.Maintains optical clarity in transparent or translucent foams for light output efficiency.2. Power ElectronicsPotting of power modules, converters, and inverters.Effective heat conduction from high-temperature components to heat sinks.Electrical insulation to prevent short circuits under high voltage conditions.3. Automotive ElectronicsSealing and potting of ECUs, sensors, and LED headlights.Vibration resistance and thermal stability under extreme temperatures (-55oC to 200oC).Lightweight foaming reduces overall component weight.4. Telecommunication & Networking DevicesEncapsulation of high-frequency circuits and base stations.Prevents moisture ingress and reduces signal interference.Provides thermal conductivity to maintain optimal performance.5. Battery PacksPotting of lithium-ion or other rechargeable battery modules.Thermal management to prevent overheating during charging/discharging cycles.Insulation and mechanical protection against impact or vibration.6. Industrial & Consumer ElectronicsEncapsulation of sensors, control boards, and IoT devices.Protects against dust, moisture, and chemicals.Lightweight foaming preserves form factor and reduces stress on sensitive components.7. Renewable Energy SystemsPotting of solar inverters, controllers, and LED streetlights.High-temperature endurance and moisture resistance for outdoor environments.Ensures long-term reliability under continuous operation.  Certifications  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. 2. Major Certifications(1) Compression Set PerformanceStandard: ASTM D1056-20Test Protocol: 1000 thermal cycles (-55°C to 125°C), 50% compressionResults: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: SGSHighlights: Demonstrates outstanding long-term resilience and thermal stability across the full series.(2) Dielectric StrengthStandard: GB/T 1695-2005Results:DC800-035: 3.0 kV/mmDC800-042: 3.1 kV/mmDC800-045: 3.1 kV/mmCertification Body: SGSHighlights: Ensures excellent insulation properties for high-voltage and sensitive electronic applications.(3) Environmental & Safety ComplianceRoHS: 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: SGSHighlights: Environmentally friendly and non-toxic; suitable for applications requiring strict material safety.(4) Low-Temperature FlexibilityStandard: ASTM D1056-14Test Protocol: 180° bend at -55°C for 24 hoursResults: No visible cracking or deformationHighlights: Maintains flexibility and integrity in extremely low temperatures, ideal for cold-environment applications. 3. Core AdvantagesBroad Temperature ResistanceOperational range: -55°C to 125°CMaintains stable performance across 1000 thermal cyclesReliable Mechanical StrengthCompression set ≤ 4.2% across all variantsResilient with minimal long-term fatigueSuperior Electrical InsulationDielectric strength ≥ 3.0 kV/mmOptimized for sensitive electronic insulation needsFull Environmental CertificationCertified RoHS, REACH, and halogen-freeSuitable for medical, consumer, and food-grade applicationsCustomizable & Versatile Product LineAvailable in grades from DC800-015 to DC800-055Customizable in thickness, hardness, and functional attributes 4. Key Application AreasElectronics: Shock-absorbing pads, EMI shielding sealsAutomotive: Weather seals, vibration dampening componentsMedical Devices: Eco-safe materials for sensitive applicationsIndustrial Equipment: Durable gaskets and sealing systems 5. Quality AssuranceAll certifications are issued by SGS, a globally recognized third-party testing body.Traceable test reports include:Compression Set: SUIN21080062XXMR_CNDielectric Strength: SHIN210805363XMR_CNEnvironmental Compliance: SHAEC2116203002/4002 ConclusionWith 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.Company ProfileHangzhou Dachuang Kehua New Materials Co., Ltd. - Innovating Advanced Silicone SolutionsCompany ProfileHangzhou 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.Key AdvantagesTechnology-Driven InnovationProprietary 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 ExcellenceISO9001, IATF16949 (automotive standard).Global compliance: UL/CUL, RoHS 2.0, REACH, SGS tested.Industry-Specific SolutionsTailored for new energy vehicles (EV batteries, charging piles), energy storage, 5G communications, and aerospace, offering:Sealing (IP68), thermal management, shock absorption, and fireproofing.Product Portfolio & Applications1. Core ProductsFoamed 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 ServedEV/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.R&D & Manufacturing ExcellenceAdvanced Testing Lab: 30+ performance tests (thermal, mechanical, flame resistance, etc.).Automated Production: Precision mixing, vulcanization, and cutting for consistency.Global ClientelePartnering with industry leaders like CATL, BYD, Huawei, and global players in new energy, energy storage, and telecom. FAQ  Q1: What is Dachuang potting silicone?A: Dachuang potting silicone is a high-performance silicone adhesive designed for encapsulation and protection of electronic components. It provides excellent thermal conductivity, electrical insulation, and environmental protection, ensuring long-term reliability of sensitive devices.Q2: What types of Dachuang potting silicone are available?A: We offer a range of formulations, including:Thermally conductive silicone - for heat dissipation in electronics.Low-density foaming silicone - for lightweight encapsulation.Standard insulating silicone - for general protection against moisture, dust, and vibration.Q3: What are the main applications of Dachuang potting silicone?A: Common applications include:Encapsulation of LED modules, sensors, and PCBs.Potting of power modules and battery packs.Sealing and protection in automotive, industrial, and consumer electronics.Q4: How is Dachuang potting silicone applied?A: It can be applied via:Manual dispensing with syringes or cartridges.Automated dispensing systems in production lines.After application, the silicone cures at room temperature or can be accelerated by heat, depending on the specific formulation.Q5: How long does it take to cure?A: Cure time varies with product type and environmental conditions:Standard room-temperature curing: 24-48 hours.Heat-accelerated curing: 2-4 hours at 80-120°C.Q6: Is Dachuang potting silicone safe for sensitive components?A: Yes. Our formulations are non-corrosive, low-shrinkage, and compatible with most metals, plastics, and circuit boards.Q7: What are the key performance features?A: Dachuang potting silicone offers:Excellent adhesion to a wide range of substrates.High thermal conductivity for heat dissipation.Superior electrical insulation.Resistance to moisture, dust, and chemicals.Long-term flexibility and vibration resistance.Q8: How should it be stored?A: Store in a cool, dry place, away from direct sunlight. Typical shelf life is 12 months in unopened containers.Q9: Can Dachuang customize formulations?A: Yes. We can adjust viscosity, cure speed, thermal conductivity, and color to meet specific project requirements.

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