|
Still deciding? Get samples of $ !
Order Sample
|
| Customization: | Available |
|---|---|
| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Advanced Silicone Rubber Sealing Strips for Superior Building Performance
Crafted with precision using high-temperature vulcanization (HTV) technology, our premium silicone rubber sealing strips redefine durability and performance in modern construction. Engineered to surpass conventional rubber and plastic seals, they deliver exceptional longevity, weather resistance, and functional reliability for demanding architectural applications.
Exceptional Temperature Tolerance - Remains flexible and effective in extreme conditions, from sub-zero cold to scorching heat (withstanding up to 200°C+).
Ultimate Weather & UV Resistance - Defies sun exposure, ozone, and harsh outdoor elements without cracking, drying, or losing integrity.
Long-Term Elasticity - Resists hardening, brittleness, and deformation, maintaining a perfect seal for extended periods.
Eco-Safe & Non-Toxic - Compliant with green building standards, free from harmful substances-ideal for sustainable and indoor projects.
Enhanced Insulation Properties - Improves energy efficiency by blocking heat transfer, noise pollution, and moisture infiltration.
Lightweight & Economical - High material yield minimizes waste and reduces overall installation expenses.
Custom-Engineered Profiles - Adaptable to intricate designs for flawless integration with diverse architectural styles.
Curtain walls & structural glazing systems
Aluminum, PVC, and wooden doors/windows
Glass facades, skylights & interior partitions
Energy-efficient & passive housing projects
Residential, commercial & high-rise buildings
Designed to create an impenetrable barrier against air, water, dust, and noise, our silicone rubber sealing strips elevate building performance while enhancing indoor comfort and structural durability.
Upgrade to premium silicone sealing technology-where innovation meets enduring quality.
Premium Silicone Rubber Sealing Strips: The Ultimate Weatherproofing Solution
Unparalleled Performance Characteristics:
Extreme Temperature Adaptability
Engineered to perform flawlessly in the harshest climates (-60°C to +200°C)
Maintains perfect sealing integrity in arctic conditions and desert heat alike
Ideal for cryogenic applications and high-temperature industrial environments
Advanced Weather Resistance
UV-stabilized formulation prevents solar degradation
Withstands ozone exposure, acid rain, and salt spray
Certified for 25+ years outdoor performance without cracking or hardening
Exceptional Longevity
Industry-leading compression set resistance (<10% after 10,000 hours)
Maintains >90% original elasticity after 15 years of service
Special anti-aging additives extend product lifespan
Eco-Conscious Formulation
REACH and RoHS compliant
Food-grade and medical-grade options available
Zero VOC emissions for improved indoor air quality
Optimized Structural Properties
High strength-to-weight ratio reduces structural load
Precision extruded for consistent cross-sectional integrity
Up to 40% material savings compared to conventional seals
Dynamic Performance Features
98% elastic recovery rate after compression
Memory foam-like responsiveness to movement
Accommodates up to 25% joint expansion/contraction
Smart Moisture Management
Micro-porous structure prevents condensation buildup
Balanced vapor transmission rate (500-800g/m²/24h)
Integrated capillary break technology
Chemical Defense System
Resistant to:
Industrial chemicals (pH 2-12)
Hydrocarbons and solvents
Marine environments
De-icing salts
Architectural Integration
Custom extrusion capabilities for:
Complex geometric profiles
Color matching (Pantone system)
Texture variations
Seamless transitions between materials
Safety Enhancements
UL94 V-0 flame retardant options
Low smoke toxicity versions
Static dissipative formulations available
Technical Superiority:
Tensile strength: 8-12 MPa
Elongation at break: 400-600%
Tear resistance: 25-40 kN/m
Shore A hardness: 40-80 customizable
Certifications & Compliance:
ISO 9001/14001 certified production
ASTM C920 compliant
EN 1366 fire resistance tested
LEED contribution documentation available
Application-Specific Benefits:
For curtain walls: Accommodates 3-dimensional movement
In hospitals: Microbial growth resistant
Data centers: EMI shielding versions
Coastal buildings: Salt corrosion protection
This next-generation sealing technology represents the culmination of material science innovation, offering architects and engineers unprecedented design flexibility coupled with uncompromising performance standards. Our R&D team continuously develops advanced formulations to meet evolving construction challenges in sustainable urban development.
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 Log
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
Pioneering Advanced Silicone Material Solutions
Hangzhou 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.
Proprietary 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.
Quality management systems: ISO9001, IATF16949 (automotive standard).
International product certifications: UL/CUL UL157, EU RoHS 2.0, REACH, with comprehensive testing by SGS.
Dachuang 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.
Foamed 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.
New 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).
Over 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.
Fully automated production processes - from mixing and vulcanization to cutting and laminating - ensure consistency, efficiency, and superior product quality.
Dachuang 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.
Certification
){kind=link}