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Engineered Silicone Foam – Reliable Sealing Redefined¹

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Product DescriptionPremium Thermal Insulation Silicone Rubber Foam Board for Versatile ApplicationsFoamed Silicone: The Ultimate Lightweight, Multi-Functional ElastomerWhat Is Foamed Silicone?Foamed silicone is a high-performance, porous elastomer that merges the exceptional characteristics of solid silicone rubber with the benefits of a lightweight, cellular structure. Engineered through advanced techniques such as chemical foaming, gas injection, or mechanical aeration, it forms a consistent network of air-filled cells. The result is a material that is:30–70% lighter than solid siliconeCapable of compressing up to 80%Resistant to heat, chemicals, and agingUnlike traditional foam materials, foamed silicone maintains the core strengths of solid silicone—including outstanding thermal stability, UV and ozone resistance, and long-lasting performance—while offering enhanced cushioning, thermal insulation, and effective sealing in a wide range of demanding environments.Key features and benefitsKey features1. Lightweight Structure with High CompressibilityThe cellular composition significantly reduces material density, making foamed silicone ideal for weight-sensitive applications.Offers excellent compressibility and recovery, allowing for reliable sealing, gasketing, and vibration isolation under mechanical stress.2. Thermal Insulation and Temperature ResistanceTrapped air within the foam structure provides effective thermal insulation, minimizing heat transfer.Maintains stable performance across a wide temperature range-from -60°C to +200°C or higher-without deformation or material degradation.3. Environmental and Chemical ResistanceRetains silicone's inherent resistance to UV radiation, ozone, oxidation, and exposure to water and various chemicals.Ensures long-term durability and material integrity in both indoor and outdoor environments, including industrial or corrosive settings.4. Versatility in Cell StructureAvailable in open-cell and closed-cell formats:Open-cell foam offers breathability, sound absorption, and flexibility-ideal for cushioning and acoustic applications.Closed-cell foam provides superior moisture resistance and is ideal for environmental sealing and thermal barriers.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 processing1. FormulationA specialized silicone rubber base is blended with curing agents, foaming (blowing) agents, and performance-enhancing additives such as flame retardants, pigments, or conductive fillers.The formulation is precisely engineered to achieve targeted physical and chemical properties.2. MixingThe components are thoroughly mixed using high-shear mixers to ensure uniform dispersion.Viscosity and reactivity are carefully controlled to maintain process consistency and material quality.3. Foaming and CuringThe compound undergoes a foaming reaction, generating gas bubbles that expand the silicone matrix.Simultaneously, curing (crosslinking) occurs to solidify the foam structure.Depending on the product type and application, this step can be carried out through:Batch molding (compression or transfer molding)Continuous extrusionLiquid Injection Molding (LIM) for LSR-based foam products4. Post-Curing (if required)To remove residual volatiles and improve mechanical and thermal stability, the foam may undergo oven-based post-curing.5. Cutting and ShapingOnce cured, the silicone foam is cut, die-cut, or fabricated into sheets, rolls, strips, or custom gasket shapes as per design specifications.6. Quality ControlComprehensive testing is conducted to verify material performance, including evaluations for:Density; Compression setElongation; FlammabilityThermal conductivityOther application-specific propertiesQuality control At Dachuang Kehua, we uphold a comprehensive quality control system to ensure the consistent performance, safety, and reliability of our foamed silicone products. Our approach combines strict material verification, real-time process monitoring, and advanced testing in compliance with international standards.1. Raw Material InspectionAll raw materials are sourced from certified suppliers and undergo rigorous testing for purity, consistency, and traceability before production begins. Retention samples are archived for quality tracking and future reference.2. In-Process MonitoringThroughout the mixing and foaming stages, critical parameters—such as temperature, material ratios, and expansion rates—are closely monitored. Visual inspections help detect surface defects, bubbles, or discoloration, while real-time measurements ensure accurate dimensions and consistent foam density.3. Laboratory TestingEach production batch is tested in our quality control laboratory according to international standards, including:Density: ISO 845 / ASTM D3574Compression Set: ISO 1856Compression Stress: ASTM D1056Elongation: ISO 1798 / ASTM D412Thermal Conductivity: EN 993-15Flame Resistance: UL94 V-0 / EN 45545-2Additional Tests: Water absorption, UV and ozone resistance4. Final Product InspectionBefore shipping, all products undergo final visual and dimensional checks. Adhesive-backed components are additionally tested for peel strength. Only products that pass inspection are approved, labeled with QC marks, and assigned a unique batch number.5. Packaging Quality ControlProducts are packaged in clean, moisture-resistant materials. Each package is clearly labeled with the product name, lot number, production date, and handling instructions to ensure safe and traceable delivery.6. Full TraceabilityComprehensive production records are maintained for every batch, including details on raw materials, processing conditions, test results, inspection outcomes, and shipping logs. This ensures full traceability from production to delivery.7. Commitment to Continuous ImprovementWe actively gather customer feedback, conduct internal audits, and provide ongoing training to our quality teams. These initiatives help us continuously refine our processes and exceed quality expectations.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.ApplicationsIndustry ApplicationsEV & Energy Storage: Battery cushioning pads, fire barriers (UL94 V-0).Electronics: EMI shielding gaskets for 5G base stations.Aerospace: Thermal/acoustic insulation in aircraft interiors.Medical: Soft padding for prosthetics (ISO 10993-5 compliant). Innovation Spotlight: Dachuang Kehua's DC800 SeriesOur proprietary self-foaming silicone technology eliminates traditional foaming agents, offering:Density control: 0.05-0.5 g/cm3 (adjustable per application).Zero VOC emissions - compliant with EU REACH.Faster curing: 30% reduced production time vs. conventional methods.Company ProfileSilicone Expert-Dachuang KehuaDachuang Kehua New Materials Technology Co., Ltd. is a premier manufacturer and solution provider specializing in advanced silicone material technologies. Backed by strong expertise in material science and precision engineering, we deliver a comprehensive range of services to meet the sealing, insulation, protection, and cushioning needs of high-performance applications across diverse industries.Core Services Include:Custom Silicone Foam SolutionsWe produce both closed-cell and open-cell silicone foams designed for sealing, shock absorption, thermal insulation, and environmental protection. Products are available in sheets, rolls, gaskets, or fully customized die-cut formats.Solid Silicone Rubber ComponentsOur high-precision solid silicone parts provide excellent mechanical strength, weather resistance, and long-term durability—ideal for applications in automotive, industrial, and medical sectors.Gel and Soft Silicone ProductsWe offer ultra-soft silicone gel pads and blocks with superior resilience, widely used in electronics cooling, medical cushioning, and impact protection systems.Semi-Fluid and Potting SiliconesOur semi-fluid silicones are engineered for potting, encapsulation, and bonding tasks, offering outstanding electrical insulation, moisture resistance, and thermal stability.Adhesive-Backed Silicone Tapes & PadsWe supply silicone sponge and foam products with high-performance adhesive backing for fast, reliable assembly and consistent sealing performance.Precision Die-Cutting & CNC FabricationWe provide end-to-end custom fabrication using advanced die-cutting, CNC, and laser machining—perfect for complex gaskets, thermal interface materials, and precision components.Flame-Retardant & Specialty Silicone GradesOur specialty formulations include flame-retardant, low-outgassing, FDA-compliant, and electrically insulating silicones that meet rigorous industry and regulatory standards.Custom R&D and Formulation ServicesCollaborating closely with clients, our R&D team develops tailored silicone solutions—from initial formulation and prototyping to product testing and performance validation.We Serve:Automotive ? Aerospace ? Electronics ? Rail Transit ? Medical Devices ? HVAC ? Marine ? Defense ? New Energy TechnologiesWhy 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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