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Weatherproof Silicone Door & Window Strips¹

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Product Description Product DescriptionPremium Silicone Rubber Sealing Strips for Construction Doors & WindowsEngineered for superior performance in modern construction, our premium silicone rubber sealing strips are manufactured using advanced high-temperature vulcanization (HTV) technology. These high-quality seals outperform traditional rubber and plastic alternatives, delivering unmatched durability, functionality, and long-term reliability.Why Choose Silicone Rubber Sealing Strips?Extreme Temperature Resistance - Maintains flexibility and sealing integrity in freezing cold or scorching heat (up to 200°C+).Superior Weather & UV Resistance - Withstands prolonged sun exposure, ozone, and harsh outdoor conditions without cracking or degrading.Long-Lasting Elasticity - Resists hardening, brittleness, and deformation over time, ensuring a durable seal for years.Eco-Friendly & Non-Toxic - Safe for green building projects and indoor applications, free from harmful chemicals.Thermal & Acoustic Insulation - Enhances energy efficiency by reducing heat transfer, noise infiltration, and moisture buildup.Lightweight & Cost-Effective - High yield per kilogram reduces material waste and installation costs.Customizable Profiles - Easily molded into complex shapes for seamless integration with various architectural designs.Ideal ApplicationsCurtain walls & structural glazingAluminum, PVC, and wooden doors/windowsGlass facades, skylights, and partitionsEnergy-efficient & passive housing projectsPerfect for residential, commercial, and high-rise buildings, our silicone rubber sealing strips provide a reliable barrier against air, water, dust, and noise-enhancing energy efficiency, indoor comfort, and structural longevity.Upgrade to premium silicone sealing-where performance meets durability.Key Features of High-End Silicone Rubber Sealing StripsWide Temperature TolerancePerforms reliably across an extensive temperature range from -60°C to +200°C, maintaining functionality in both extreme cold and heat.Excellent Weather & UV ResistanceResists prolonged exposure to sunlight, ozone, rain, and other environmental factors without cracking, degrading, or losing elasticity.Superior Aging & LongevityMaintains its shape, elasticity, and sealing performance over time, with minimal compression set and excellent long-term durability.Non-Toxic & Eco-FriendlyFree from harmful substances, making it safe for green buildings, indoor applications, and environments requiring physiological inertness.Lightweight & EfficientLow density with high material yield, reducing production costs and improving extrusion and installation efficiency.Outstanding Elastic RecoveryQuickly rebounds to its original shape after compression, ensuring a reliable and consistent seal even after repeated use.Controlled Breathability & Moisture ControlProvides optimal air permeability to prevent condensation while enhancing thermal and acoustic insulation properties.Excellent Chemical ResistanceWithstands exposure to oils, solvents, acids, and alkalis, making it ideal for industrial, coastal, and harsh environments.Customizable Designs & ColorsCan be easily molded or extruded into a wide variety of profiles and sizes, with custom colors available to complement architectural aesthetics.Optional Flame RetardancyAvailable in formulations that meet UL94V-0 and other fire safety standards, suitable for high-safety building and industrial applications.ProductionSolid Silicone Production Management Workflow1. Raw Material SelectionBase Material: High-purity silicone rubber (LSR or HTV)Additives:Curing agents (peroxide or platinum-based)Reinforcing fillers (e.g., silica)Flame retardants, colorants, UV stabilizersKey Requirement: Compliance with RoHS, FDA, REACH, and industry-specific standards2. Formula Development & TestingDefine hardness (Shore A), tensile strength, elongation, and thermal stabilityLab trials for:Cure time/temperature optimizationColor consistencyMechanical performance validationMaintain a formulation database for traceability3. Mixing & CompoundingEquipment: Internal mixers, two-roll mills, or twin-screw extrudersCritical Controls:Precise additive dosingHomogeneous dispersionDegassing to eliminate trapped airViscosity & pot life monitoring4. Molding & CuringProcess Options:Compression Molding (for sheets, gaskets)Injection Molding (complex geometries)Extrusion (profiles, tubing)Curing Parameters:Temperature: 120-200°CPressure: 5-20 MPaTime: 2-15 min (varies by thickness)5. Post-Curing (If Required)Secondary heat treatment (e.g., 4 hrs at 200°C) to enhance:Crosslinking densityThermal stabilityVolatile removal (critical for medical/food-grade)6. Secondary ProcessingCutting/Trimming: Die-cutting, CNC, laser, or waterjetSurface Treatments: Plasma coating, adhesive laminationAssembly: Bonding with metals/plastics (for multi-material parts)7. Quality Control & TestingMechanical Tests: Hardness, tensile strength, compression setThermal Tests: TGA, DSC, heat aging resistanceChemical Resistance: Oil, acid, solvent exposureDimensional Checks: Thickness, flatness, tolerances (±0.1mm)Certifications: ISO 9001, ISO 13485, IATF 169498. Packaging & StorageAnti-static or vacuum-sealed packagingLabeling: Batch #, manufacture date, shelf lifeStorage: <30°C, 50% RH, away from direct sunlight9. Documentation & TraceabilityRecords: Batch logs, QC reports, material certificatesERP/MES Integration: Real-time tracking of production KPIs (yield rate, scrap rate)Best Practices for Solid Silicone ProductionPreventive Maintenance: Regular calibration of molds and pressesOperator Training: Standardized SOPs for consistencyContinuous Improvement: Root-cause analysis for defects (e.g., air traps, uneven curing)Sustainability: Recycle trim waste into reusable feedstockQuality control Solid Silicone Rubber Production Workflow - High-Performance ApplicationsSolid silicone rubber (HTV or HCR) is widely used for gasketing, insulation, and sealing in demanding sectors such as automotive, aerospace, and healthcare. Below is a comprehensive production workflow:1. Material PreparationBase Polymer Selection: Choose high-purity HTV silicone gumAdditive Integration: Mix reinforcing fillers (e.g., fumed silica), pigments, and curing agentsStorage & Handling: Store in temperature- and humidity-controlled environments to prevent contamination2. Compounding ProcessKneading/Two-Roll Milling: Achieve homogeneous dispersion of additivesPre-curing Checks: Test compound viscosity, dispersion, and scorch timeBatch Labeling: Assign traceable batch IDs for each compounded lot3. Shaping/FormingMolding Options: Compression, transfer, or injection molding based on geometryTool Temperature Control: Maintain mold temperatures between 150°C and 220°CCycle Timing: Optimize press time for full crosslinking4. Curing ProcessPrimary Curing: Molded parts are cured under pressure and heatPost-Curing (if needed): Optional secondary curing in an oven (e.g., 200°C for 4 hours) to remove residual volatiles and enhance performance5. Trimming & FinishingFlash Removal: Manual or automated trimming of excess rubberSurface Treatments: Optional coatings for friction reduction or hydrophobicityDimension Check: Measure tolerances using calipers or coordinate measuring machines (CMMs)6. Inspection & TestingPhysical Testing: Hardness (ASTM D2240), tensile strength (D412), elongation, tear resistanceThermal Resistance: Heat aging and cold flexibility testsElectrical Properties: For insulation-grade silicone (e.g., dielectric strength per ASTM D149)7. Packaging & TraceabilityLabeling: Include product code, lot number, and date of manufacturePackaging: Use moisture- and dust-resistant bags or cartonsDocumentation: Attach CoA, MSDS, and regulatory certificates8. Quality AssuranceIn-Process AuditsFirst Article InspectionsSPC Monitoring & Corrective Action LogsPackaging & ShippingApplicationsIdeal Applications of High-Performance Solid Silicone Sealing StripsHigh-end solid silicone rubber sealing strips are engineered to deliver exceptional sealing, insulation, and environmental protection across a wide range of demanding construction and industrial applications. Their unmatched durability, elasticity, and weather resistance make them indispensable in both traditional and high-tech building systems.1. Building Curtain Wall SystemsProvide long-lasting seals between glass panels and metal frames, preventing water infiltration and air leakage.Maintain flexibility across temperature extremes, ensuring structural integrity in high-rise buildings.2. Aluminum Alloy Doors and WindowsEnsure airtight and watertight sealing around operable window and door frames.Resist deformation and aging under daily use, UV exposure, and seasonal temperature changes.3. PVC, UPVC, and Wooden Window FramesEnhance thermal and acoustic insulation in residential and commercial windows.Suitable for both double-glazed and triple-glazed systems, reducing energy loss.4. Glass Facades, Skylights & Roof GlazingMaintain a durable, weatherproof barrier in structural glazing systems exposed to direct sunlight, wind, and rain.Ideal for complex geometries and curved installations due to their excellent conformability.5. Energy-Efficient and Passive HousesEssential for thermal bridge reduction and maintaining building envelope integrity.Help achieve LEED, BREEAM, or Passive House certification by improving air tightness and energy performance.6. Cleanrooms and Medical FacilitiesOffer non-toxic, non-reactive sealing in hospitals, pharmaceutical labs, and sterile environments.Resistant to microbial growth, chemicals, and regular cleaning agents.7. Automotive and Rail Vehicle InteriorsUsed in door seals, window channels, and HVAC systems for noise reduction, thermal management, and dust protection.Perform reliably under vibration, compression, and outdoor exposure.8. Electrical and Electronics EnclosuresProtect sensitive components from moisture, dust, and EMI in outdoor junction boxes or telecom equipment.Maintain sealing even under prolonged thermal cycling and electrical loading.9. Aerospace, Marine & Defense StructuresUsed in access panels, hatches, and fuselage joints requiring low outgassing and extreme weather durability.Withstand ozone, salt spray, and corrosive environments, critical in marine and coastal buildings.10. Industrial Equipment & MachineryServe as gaskets and seals in industrial ovens, cleanroom equipment, HVAC units, and compressors.Provide chemical and high-temperature resistance in process-intensive environments.Summary of Key Benefits Across ApplicationsWeatherproofing and air sealingThermal and acoustic insulationLong-term elasticity and durabilityCompatibility with diverse substrates (glass, metal, wood, plastic)Compliance with green building standardsCertificationsCompany ProfileHangzhou Dachuang Kehua New Materials Co., Ltd.Pioneering Advanced Silicone Material SolutionsCompany OverviewHangzhou Dachuang Kehua New Materials Co., Ltd. is a national high-tech enterprise specializing in the research, development, production, and sales of high-performance silicone materials.Situated in Qingshanhu Science and Technology City, Hangzhou - a key hub within China's National Science and Technology Innovation Corridor - the company thrives on technological innovation and deep industry expertise.With a skilled team and strong collaborations with leading research institutions, Dachuang Kehua has established a comprehensive platform that integrates R&D, manufacturing, and sales. State-of-the-art laboratories and advanced facilities enable the company to continuously expand the applications and industrialization of silicone materials.Core StrengthsTechnological LeadershipProprietary production processes and cutting-edge equipment produce a wide range of products, including liquid and solid foamed silicone, thermal conductive materials, potting compounds, and more.The innovative DC800 Series Liquid Foamed Silicone technology is environmentally friendly, free of external foaming agents, and delivers excellent weather resistance, flame retardancy, and elasticity.Industry-Leading CertificationsQuality management systems: ISO9001, IATF16949 (automotive standard).International product certifications: UL/CUL UL157, EU RoHS 2.0, REACH, with comprehensive testing by SGS.Tailored Solutions for Key IndustriesDachuang Kehua provides customized material solutions for demanding sectors such as new energy vehicles, energy storage, 5G communications, and aerospace - delivering reliable sealing, thermal management, cushioning, and fire protection.Product Portfolio & Innovative ApplicationsKey ProductsFoamed Silicone:DC800 Series (low/medium/high density) and DC900 Series (rigid foam) offering IP68 sealing, shock absorption, sound insulation, and extreme temperature resistance (-55°C to 200°C).Thermal Conductive Materials:DC10 Series thermal pads and DC21 Series potting compounds for lightweight, efficient heat dissipation in battery systems.Fireproof Materials:DC400 Series ceramicized silicone rubber for thermal runaway mitigation and fire protection.Specialty Composites:DC600 Series combines foamed silicone and PTFE for exceptional chemical and corrosion resistance.Industry ApplicationsNew Energy Vehicles:Power battery PACK sealing (IP68), liquid cooling plate supports, cell cushioning, and waterproof/dustproof solutions for charging stations.Energy Storage Systems:Liquid-cooled cabinet sealing (IP67) and ceramicized silicone for fireproofing and insulation.5G Communications:Housing seals, EMI shielding, and superior aging resistance.Construction & Industrial:Steel structure seals, photovoltaic inverter gaskets (IP67, UL94 V-0 flame retardant).R&D and Quality AssuranceLaboratory CapabilitiesOver 30 testing methods, including mechanical, aging, salt spray, flammability, and electrical performance tests.Advanced equipment such as universal tensile testers, thermal conductivity meters, and environmental chambers.Manufacturing ExcellenceFully automated production processes - from mixing and vulcanization to cutting and laminating - ensure consistency, efficiency, and superior product quality.Market Reach & PartnershipsDachuang Kehua proudly collaborates with global leaders in new energy vehicles, energy storage, rail transit, and consumer electronics - serving esteemed clients such as CATL, BYD, and Huawei with dependable, high-performance materials.Mission & VisionGuided by the mission:"Empowering Industrial Upgrades Through Material Science,"Dachuang Kehua is dedicated to continuous innovation and excellence, striving to become a global leader in silicone materials and a driving force in the sustainable development of green energy and smart manufacturing.

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