| Customization: | Available |
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| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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High-end silicone rubber sealing strips are premium, high-performance solutions engineered specifically for construction applications. Manufactured through advanced high-temperature vulcanization (HTV) processes, these strips surpass conventional door and window seals in durability, functionality, and reliability.
Compared to traditional rubber or plastic sealing materials, silicone rubber sealing strips offer outstanding benefits:
Exceptional Temperature Resistance - Stay flexible and effective across a broad temperature range, from extreme cold to over 200°C.
Superior Weather Resistance - Outstanding durability against UV radiation, ozone, and prolonged weather exposure ensures dependable outdoor performance.
Long-Term Aging Resistance - Maintain elasticity and sealing performance over time without becoming brittle or cracking, even after years of exposure to sunlight and air.
Non-Toxic & Inert - Safe for use in sensitive environments, making them ideal for green buildings and indoor applications.
Breathable Yet Insulating - Reduces moisture accumulation while maintaining excellent thermal insulation and soundproofing.
Low Density & High Yield - More linear meters per kilogram, maximizing material efficiency and lowering costs in large-scale projects.
Excellent Elastic Recovery - Maintains a tight seal and rebounds effectively, even under repeated compression and stress.
Versatile Formability - Easily shaped into complex, precise profiles that integrate seamlessly with diverse architectural designs and systems.
High-end silicone rubber sealing strips are widely used in a variety of construction scenarios, including:
Building curtain wall systems
Aluminum alloy doors and windows
PVC and wooden window frames
Glass facades and skylights
Energy-efficient and passive house installations
Whether for residential, commercial, or high-rise projects, these sealing strips provide long-lasting protection against air, water, noise, and dust - enhancing energy efficiency, indoor comfort, and building longevity.
Wide Temperature Resistance
Reliable performance across a broad temperature range of -60°C to +200°C, ensuring functionality in both extreme cold and heat.
Outstanding Weather & UV Resistance
Withstands prolonged exposure to sunlight, ozone, and rain without cracking, degrading, or losing elasticity.
Superior Aging & Durability
Retains shape and sealing performance over time with minimal compression set and excellent long-term resilience.
Non-Toxic & Environmentally Friendly
Free of harmful substances; safe for green buildings, indoor spaces, and applications requiring physiological inertness.
Low Density & High Extrusion Efficiency
Lightweight with high material yield, reducing production costs and improving installation efficiency.
Excellent Elastic Recovery
Quickly returns to its original form after compression, ensuring a tight, reliable seal over repeated use.
Controlled Breathability & Moisture Management
Allows for optimal air permeability, preventing condensation and enhancing thermal and acoustic insulation.
Chemical Resistance
Resistant to oils, solvents, acids, and alkalis - ideal for industrial, coastal, and harsh environments.
Customizable Profiles & Colors
Easily molded or extruded into diverse shapes and sizes, with custom colors available to complement architectural designs.
Optional Fire Resistance
Can be formulated to meet UL94 V-0 or other flame-retardant standards, making it suitable for high-safety building applications.
Solid Silicone Production Management Workflow
Base Material: High-purity silicone rubber (LSR or HTV)
Additives:
Curing agents (peroxide or platinum-based)
Reinforcing fillers (e.g., silica)
Flame retardants, colorants, UV stabilizers
Key Requirement: Compliance with RoHS, FDA, REACH, and industry-specific standards
Define hardness (Shore A), tensile strength, elongation, and thermal stability
Lab trials for:
Cure time/temperature optimization
Color consistency
Mechanical performance validation
Maintain a formulation database for traceability
Equipment: Internal mixers, two-roll mills, or twin-screw extruders
Critical Controls:
Precise additive dosing
Homogeneous dispersion
Degassing to eliminate trapped air
Viscosity & pot life monitoring
Process Options:
Compression Molding (for sheets, gaskets)
Injection Molding (complex geometries)
Extrusion (profiles, tubing)
Curing Parameters:
Temperature: 120-200°C
Pressure: 5-20 MPa
Time: 2-15 min (varies by thickness)
Secondary heat treatment (e.g., 4 hrs at 200°C) to enhance:
Crosslinking density
Thermal stability
Volatile removal (critical for medical/food-grade)
Cutting/Trimming: Die-cutting, CNC, laser, or waterjet
Surface Treatments: Plasma coating, adhesive lamination
Assembly: Bonding with metals/plastics (for multi-material parts)
Mechanical Tests: Hardness, tensile strength, compression set
Thermal Tests: TGA, DSC, heat aging resistance
Chemical Resistance: Oil, acid, solvent exposure
Dimensional Checks: Thickness, flatness, tolerances (±0.1mm)
Certifications: ISO 9001, ISO 13485, IATF 16949
Anti-static or vacuum-sealed packaging
Labeling: Batch #, manufacture date, shelf life
Storage: <30°C, 50% RH, away from direct sunlight
Records: Batch logs, QC reports, material certificates
ERP/MES Integration: Real-time tracking of production KPIs (yield rate, scrap rate)
Preventive Maintenance: Regular calibration of molds and presses
Operator Training: Standardized SOPs for consistency
Continuous Improvement: Root-cause analysis for defects (e.g., air traps, uneven curing)
Sustainability: Recycle trim waste into reusable feedstock
Solid 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:
Base Polymer Selection: Choose high-purity HTV silicone gum
Additive Integration: Mix reinforcing fillers (e.g., fumed silica), pigments, and curing agents
Storage & Handling: Store in temperature- and humidity-controlled environments to prevent contamination
Kneading/Two-Roll Milling: Achieve homogeneous dispersion of additives
Pre-curing Checks: Test compound viscosity, dispersion, and scorch time
Batch Labeling: Assign traceable batch IDs for each compounded lot
Molding Options: Compression, transfer, or injection molding based on geometry
Tool Temperature Control: Maintain mold temperatures between 150°C and 220°C
Cycle Timing: Optimize press time for full crosslinking
Primary Curing: Molded parts are cured under pressure and heat
Post-Curing (if needed): Optional secondary curing in an oven (e.g., 200°C for 4 hours) to remove residual volatiles and enhance performance
Flash Removal: Manual or automated trimming of excess rubber
Surface Treatments: Optional coatings for friction reduction or hydrophobicity
Dimension Check: Measure tolerances using calipers or coordinate measuring machines (CMMs)
Physical Testing: Hardness (ASTM D2240), tensile strength (D412), elongation, tear resistance
Thermal Resistance: Heat aging and cold flexibility tests
Electrical Properties: For insulation-grade silicone (e.g., dielectric strength per ASTM D149)
Labeling: Include product code, lot number, and date of manufacture
Packaging: Use moisture- and dust-resistant bags or cartons
Documentation: Attach CoA, MSDS, and regulatory certificates
In-Process Audits
First Article Inspections
SPC Monitoring & Corrective Action Logs
High-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.
Provide 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.
Ensure airtight and watertight sealing around operable window and door frames.
Resist deformation and aging under daily use, UV exposure, and seasonal temperature changes.
Enhance thermal and acoustic insulation in residential and commercial windows.
Suitable for both double-glazed and triple-glazed systems, reducing energy loss.
Maintain 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.
Essential for thermal bridge reduction and maintaining building envelope integrity.
Help achieve LEED, BREEAM, or Passive House certification by improving air tightness and energy performance.
Offer non-toxic, non-reactive sealing in hospitals, pharmaceutical labs, and sterile environments.
Resistant to microbial growth, chemicals, and regular cleaning agents.
Used in door seals, window channels, and HVAC systems for noise reduction, thermal management, and dust protection.
Perform reliably under vibration, compression, and outdoor exposure.
Protect sensitive components from moisture, dust, and EMI in outdoor junction boxes or telecom equipment.
Maintain sealing even under prolonged thermal cycling and electrical loading.
Used 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.
Serve as gaskets and seals in industrial ovens, cleanroom equipment, HVAC units, and compressors.
Provide chemical and high-temperature resistance in process-intensive environments.
Weatherproofing and air sealing
Thermal and acoustic insulation
Long-term elasticity and durability
Compatibility with diverse substrates (glass, metal, wood, plastic)
Compliance with green building standards
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