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China, Chinese Engineered Softness, Extreme Durability – Discover Foamed Silicone Excellence1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Silicone Silicone ProductsExtreme Durability – Discover Foamed Silicone ExcellenceFoamed SiliconeFoamed Silicone Excellence
Hangzhou Dachuang Kehua New Material Co., Ltd.
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Product DescriptionDachuang Kehua Silicone Foam, Sponge & Rubber Solutions – Engineered for Demanding ApplicationsAt Dachuang Kehua, we specialize in high-performance silicone foam, silicone sponge, and solid silicone rubber products — including tapes, pads, gaskets, and seals — engineered to meet the toughest requirements in sealing, insulation, shock absorption, and protection.Our silicone materials are built to withstand extreme temperatures, UV aging, moisture, and harsh chemicals, making them ideal for critical applications in the automotive, aerospace, electronics, HVAC, medical, and industrial sectors.From custom die-cut gaskets and thermal insulation pads to pressure-sensitive adhesive tapes and flame-retardant silicone sponge, we provide both standard and fully customized solutions. Whether you require closed-cell silicone foam for environmental sealing or solid silicone rubber for structural integrity, Dachuang Kehua delivers durable, precise, and reliable silicone solutions — made to perform.Key features and benefitsFlame Resistant – Meets UL94 V-0 at 1.5 mm thicknessSealing Performance – Smooth skin surface provides excellent IP67 sealing capabilityCompliant with Global Standards – NFPA 130 (USA) & EN45545-2 (EU Rail Standards)Low Outgassing – Low smoke, low toxicity, ideal for sensitive electronic and confined environmentsUltra Low Compression Set – Maintains shape and sealing force over timeMinimal Water Absorption – Reliable in humid or wet environmentsWeight Efficient – Lightweight structure reduces system mass While production materialsilicone foam padsheet roll materialTechnical Specifications(Custom configurations available upon request.) PropertyvalueMaterial TypeSilicone SpongeCell StructureClosed CellDensity(BS EN ISO 845, ASTM D3574)19.4 lbs/ft3 (310 kg/m3)Compression Stress @ 25% Strain(ASTM D1056)5.8 psiElongation to Failure(BS EN ISO 1798, ASTM D412)90%Compression Set(22 hrs @ 158°F, 50%)<1% (BS EN ISO 1856)Thermal Conductivity(DIN EN 993-15)0.099 W/m·KFlame Rating(UL94)UL94 V-0 @ 1.5 mm thicknessOzone ResistanceYesUV ResistanceYesProduction activitiesBreif introduction to Silicone Foam ProductionSilicone foam production involves the fabrication of a lightweight, compressible, and durable material derived from silicone rubber. This advanced process transforms liquid or solid silicone compounds into a soft, spongy material with a closed-cell or open-cell structure, depending on the application requirements. Silicone foam is widely used in industries such as automotive, electronics, construction, aerospace, medical, and telecommunications due to its excellent thermal stability, weather resistance, electrical insulation, and cushioning performance.Strictly controlled processingFormulation:A customized silicone rubber base is mixed with curing agents, blowing agents (foaming agents), and additives (e.g., flame retardants, pigments, conductive fillers).The formulation is tailored to meet specific physical and chemical properties.Mixing:The ingredients are thoroughly blended using high-shear mixers to ensure uniform dispersion of all components.Precise control over viscosity and reactivity is maintained.Foaming and Curing:The mixed compound undergoes a foaming reaction, creating gas bubbles that expand the silicone.Simultaneously, the silicone begins to cure (crosslink), locking the foam structure in place.This process can be conducted through:Batch Molding (compression or transfer molding)Continuous ExtrusionLiquid Injection Molding (LIM) for liquid silicone rubber (LSR) foamPost-Curing (if needed):The foam may be post-cured in an oven to remove volatile by-products and enhance mechanical and thermal properties.Cutting and Shaping:The cured silicone foam is cut, die-cut, or fabricated into sheets, strips, rolls, or customized gaskets according to the end-use requirements.Quality Control:Rigorous testing is performed for density, compression set, elongation, flammability, thermal conductivity, and other properties to ensure consistent performance.Quality control Dachuang Kehua – Quality Control Methods & ProcessesAt Dachuang Kehua, we implement a rigorous quality control system to ensure consistent performance, safety, and reliability in our foamed silicone products.1. Raw Material InspectionAll raw materials are sourced from certified suppliers and tested for purity, consistency, and traceability before use. Retention samples are stored for future reference.2. In-Process ControlDuring mixing and foaming, temperature, ratios, and expansion rates are closely monitored. Visual checks are performed to detect bubbles, discoloration, or surface defects. Real-time measurements ensure dimensional accuracy and uniform density.3. Laboratory TestingOur QC lab tests all batches to international standards:Density (ISO 845 / ASTM D3574)Compression Set (ISO 1856)Compression Stress (ASTM D1056)Elongation (ISO 1798 / ASTM D412)Thermal Conductivity (EN 993-15)Flame Resistance (UL94 V-0 / EN45545-2)Water Absorption, UV/Ozone Resistance4. Final Product InspectionEach product undergoes visual and dimensional checks. Adhesive-backed parts are tested for peel strength. Approved products are labeled with QC marks and batch numbers.5. Packaging QCProducts are packed in clean, moisture-resistant packaging. Labels include product name, lot number, date, and handling instructions.6. Traceability & RecordsComplete production data is recorded for each batch, including raw materials, process parameters, test results, and shipping logs.7. Continuous ImprovementWe gather customer feedback, conduct regular audits, and provide team training to maintain quality excellence.Packaging & ShippingProperly packingTimely delivery1. Cleanroom or Dust-Free Packing AreaPerform final packing in a clean or controlled environment to prevent contamination from dust, debris, or moisture.Wipe down foam surfaces (if required) to remove loose particles. 2. Primary Protection – Inner PackagingFor sheets, pads, or rolls:Stack neatly and separate layers with release liners or PE film to prevent adhesion or surface damage.Use plastic wrap, PE bags, or vacuum-sealed pouches for moisture and dust protection.For die-cut gaskets or CNC parts:Place parts in anti-static trays, foam layers, or individual plastic bags depending on the sensitivity and shape. 3. Secondary Packaging – Outer ProtectionUse corrugated cardboard boxes or plastic crates based on transport distance and product fragility.Add EPE foam, bubble wrap, or corner protectors inside to prevent shifting or compression during transit.For bulk rolls, use reinforced cartons with center supports or reels to maintain shape. 4. LabelingEach package should include:Product name and code Specification and quantityBatch/lot numberProduction dateHandling instructions (e.g., "Do not compress," "Keep dry," "Fragile")5. Palletizing (if applicable)Arrange boxes securely on wooden or plastic pallets.Wrap the entire pallet with stretch film and apply edge guards to protect corners.Use straps to hold boxes tightly in place, especially for international shipping. 6. Delivery MethodChoose delivery options based on product sensitivity:Local delivery: Use vans with weather protection.Domestic shipping: Choose courier or logistics services with reliable handling.International shipping: Use export-grade packing with moisture-proof and impact-resistant features. Air shipping for urgent and lightweight goods; sea shipping for bulk orders. 7. Environmental and Storage ConsiderationsStore and transport in conditions away from high humidity, UV exposure, and direct heat.Maintain temperature below 40°C and humidity below 60% RH whenever possible.ApplicationsTypical ApplicationsAutomotive Seals & Vibration PadsAerospace InsulationLighting EnclosuresElectronics GasketingHVAC Seals & DampersMarine EquipmentRailway SystemsCompany ProfileSilicone Expert-Dachuang KehuaIntroduction to Services Offered by Dachuang Kehua New Materials Technology Co., Ltd.Dachuang Kehua New Materials Technology Co., Ltd. is a leading manufacturer and solution provider specializing in advanced silicone materials. With a strong foundation in material science and precision engineering, we offer a full spectrum of services designed to support high-performance sealing, insulation, protection, and cushioning across a wide range of industries. Our Core Services Include:1. Custom Silicone Foam SolutionsWe manufacture closed-cell and open-cell silicone foam products tailored for sealing, shock absorption, thermal insulation, and environmental protection. Available in sheets, rolls, gaskets, and custom die-cut formats.2. Solid Silicone Rubber ManufacturingOur precision-molded solid silicone components offer excellent mechanical strength, weather resistance, and durability — ideal for demanding industrial, automotive, and medical applications.3. Gel & Soft Silicone EngineeringWe produce silicone gel pads and gel blocks with superior softness and resilience, widely used in electronics, medical cushioning, and impact protection.4. Semi-Fluid and Potting SiliconeOur flowable silicone materials are formulated for encapsulation, potting, or bonding applications, providing insulation, moisture resistance, and thermal management.5. Adhesive-Backed Silicone Tapes and PadsWe offer silicone sponge and foam products laminated with high-performance adhesives for easy assembly and reliable sealing.6. Die-Cutting and CNC Precision ProcessingFrom complex gaskets to thermal interface components, we provide full-service custom fabrication using die-cutting, CNC, and laser processing technologies.7. Flame-Retardant and Specialty GradesDachuang Kehua develops and supplies flame-resistant, low outgassing, FDA-compliant, and electrically insulating silicone materials to meet strict industry and regulatory standards.8. R&D and Custom Formulation ServicesWe work closely with customers to develop silicone materials and solutions tailored to specific project requirements — from formulation to final product testing and validation. Industries We Serve:Automotive ? Aerospace ? Electronics ? Rail Transit ? Medical Devices ? HVAC ? Marine ? Defense ? New EnergyWhy Choose Us?Other ProductsOEM/ODM capabilitiesCompetitive pricing & bulk discountsFast shipping & customs clearance supportTurnkey project solutionsWheel LoadersBulldozersMotor GradersRoad RollersForkliftsFAQQ1: What types of silicone materials do you produce?A: We manufacture a wide range of silicone materials including closed-cell and open-cell silicone foam, solid silicone rubber, silicone gel pads, semi-fluid silicones, and adhesive-backed silicone tapes. We also offer flame-retardant, low-outgassing, and custom-formulated grades. Q2: Can you customize products according to our requirements?A: Yes, we offer complete customization — including thickness, density, color, shape, adhesive backing, and packaging. We also support custom formulations for specific environmental, mechanical, or regulatory needs. Q3: Do your silicone products meet international standards?A: Absolutely. Many of our products meet or exceed standards such as UL94 V-0, EN45545-2, NFPA 130, FDA, REACH, and RoHS, depending on the product type and application. Q4: What are the typical applications of your silicone foam and rubber products?A: Our products are widely used in automotive sealing, electronic cushioning, rail and aerospace insulation, medical devices, lighting enclosures, HVAC systems, and marine and military applications. Q5: Do you offer die-cut or CNC precision processing services?A: Yes. We provide full fabrication services including die-cutting, CNC cutting, laser cutting, and lamination, allowing us to deliver ready-to-use parts and gaskets with high precision. Q6: What is your lead time for custom orders?A: Lead times depend on the complexity and volume of the order. Standard products typically ship within 5–7 working days, while custom projects may require 7–15 working days. Express production is available upon request. Q7: Can we request material samples before placing an order?A: Yes, we offer free samples for testing and validation. Please contact us with your material requirements and shipping address. Q8: How do you ensure product quality?A: We maintain strict ISO-certified quality control procedures, including incoming raw material inspection, on-line monitoring, mechanical and thermal testing, and final product inspection to ensure consistent quality and performance.
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