UV and Ozone Resistant Solid Silicone Strips That Won't Crack, Harden, or Degrade Outdoors for Years of Reliable Use

• Customization: Available
• Material: Organic Silicone
• Application: Household, Medical, Industrial, Agricultural
• Model NO.: glue
• Certification: ISO, REACH, RoHS
• Transport Package: Carton + Pallet
• Specification: customized
• Trademark: Dachuang Kehua
• Origin: China
• HS Code: 3910000000
• Production Capacity: 1000000 Sqm/Week
• Package Size: 40.00cm * 20.00cm * 35.00cm
• Package Gross Weight: 12.000kg

Product Description

Product Description

Solid Silicone: The Premium Elastomer for Extreme Applications

Solid silicone stands as a premium-grade elastomer celebrated for its extraordinary durability, flexibility, and resilience in extreme environments. Crafted from high-purity silicone polymers, it delivers consistent, superior performance across vital industries including automotive, medical, electronics, and industrial manufacturing.

Key Characteristics of Solid Silicone

Exceptional Temperature Resistance
Solid silicone maintains reliable performance across extreme temperatures, preserving both structural integrity and mechanical properties.

• Operating range: -60°C to +230°C

• Ideal for applications experiencing rapid thermal cycling or prolonged heat exposure

Superior Chemical and Fluid Resistance
This material withstands exposure to a comprehensive range of aggressive substances:

• Oils, acids, alkalis, and solvents

• Ensures long-lasting performance in chemically challenging or corrosive environments

Outstanding Mechanical Performance
Solid silicone provides an optimal balance of:

• Tensile strength, flexibility, and resilience

• Maintains shape and elasticity under repeated compression or stretching

• Suitable for dynamic seals, vibration dampening, cushioning, and gasket applications

Excellent Environmental Stability
Engineered to withstand harsh outdoor conditions, it delivers:

• UV, ozone, and weather resistance

• Long-term outdoor performance without cracking, brittleness, or degradation

Uniform and Consistent Finish
Available in:

• Continuous rolls or precision-cut sheets

• Uniform thickness and smooth surface
  Enables seamless processing, fabrication, and integration into finished products

Why Choose Solid Silicone?

• Available in multiple durometers, thicknesses, and colors

• Custom formulations meeting regulatory and performance requirements (FDA, RoHS, UL94 V-0)

• Trusted for critical applications including medical tubing, industrial gaskets, automotive seals, and electrical insulation

Solid silicone is engineered to outperform where other elastomers fail-delivering a reliable, adaptable, and high-performance solution for the world's most demanding environments.

Key Features of Solid Silicone

Solid silicone is a robust and versatile elastomer engineered to deliver exceptional performance in demanding conditions. Its unique combination of mechanical strength, environmental resistance, and processing flexibility makes it an ideal choice for a wide range of high-performance applications.

1. Superior Sealing and Gasketing Performance
Solid silicone excels in the production of seals, gaskets, and O-rings, offering:

• Exceptional resistance to pressure, fluids, and environmental stressors

• Reliable, leak-proof performance in high-load and high-temperature applications

2. Outstanding Fabrication Flexibility
Easily processed through die-cutting, stamping, or molding, solid silicone:

• Supports rapid prototyping and high-volume production

• Enables precision shaping for both standard and complex custom parts

3. Long-Term Mechanical Durability
Engineered for longevity, it resists:

• Wear, mechanical fatigue, and permanent deformation

• Suitable for components exposed to continuous motion, vibration, or pressure cycles

4. Low Compression Set (<10%)
Maintains original shape and compression force even after repeated use:

• Ensures reliable sealing performance in dynamic systems like engines, pumps, and valves

5. Excellent Resistance to UV, Ozone, and Weathering
Designed for challenging outdoor environments, solid silicone:

• Withstands prolonged exposure to sunlight, ozone, and varying weather conditions

• Remains flexible and crack-free over time

6. Broad Operating Temperature Range (-60°C to +230°C)
Performs consistently in extreme thermal conditions:

• Ideal for use in automotive, aerospace, electronics, and industrial equipment

7. High Chemical and Moisture Resistance
Offers protection against:

• Oils, acids, solvents, and water

• Ensures durability in corrosive and high-humidity environments

8. Available in Flame-Retardant Grades
Special formulations meet strict safety and compliance standards:

• Options certified to UL94, RoHS, and other industry-specific regulations

• Suitable for applications where fire resistance is critical

Conclusion:
Solid silicone delivers a powerful combination of thermal stability, environmental resilience, and mechanical strength-making it a trusted material for engineers seeking long-lasting solutions in high-demand applications.

3. parameters 

Foamed Silicone Products - Technical Specifications

General Information

Item	Specification
Place of Origin	China (Zhejiang)
Brand Name	Dachuang Kehua
Model	Anti-static Foamed Silicone
Processing Capabilities	Molding, Cutting, Die-Cutting, Lamination

Physical Properties

Property	Value
Hardness	16-20 Shore A
Density	0.60 g/cm³
Thickness Range	2 - 40 mm
Surface Texture	Grid pattern (customizable upon request)
Cell Structure	Closed-cell (obturator type)
Compression Set (22 hrs @ 70°C)	≤15%
Tensile Strength	>700 kPa
Elongation at Break	>150%
Tear Strength	≥15 kN/m (varies with density)
Recovery Rate	≥98% after compression

Thermal & Electrical Properties

Property	Value
Thermal Conductivity	0.06 W/m·K
Operating Temperature Range	-60°C to +250°C
Peak Temperature Resistance	Up to +250°C
Electrical Resistivity	≥10 Ω·cm (anti-static options available)
Dielectric Strength	≥20 kV/mm (thickness dependent)
Flame Retardancy	Standard: Non-FR (Custom flame-retardant grades available)

Chemical Resistance

Property	Performance
UV Resistance	Excellent
Ozone Resistance	Excellent
Water Absorption	≤1%
Chemical Resistance	Good (resistant to mild acids, bases, and solvents)
Oil Resistance	Moderate (custom formulations available for improved resistance)
Weathering Resistance	Outstanding

Workability & Custom Options

Feature	Details
Machinability	Excellent (CNC, die-cutting, waterjet compatible)
Color Options	Customizable (natural, grey, red, black, etc.)
Lamination Options	Adhesive backing, fabric/surface film available
Shape Customization	Sheets, rolls, die-cut parts, gaskets, seals
Certifications	RoHS, REACH, FDA (available upon request)

Note: All properties are typical values and may vary slightly depending on formulation and manufacturing method.

Production

Solid Silicone Production Management Workflow

1. Raw Material Selection

• 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

2. Formula Development & Testing

• 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

3. Mixing & Compounding

• 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

4. Molding & Curing

• 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)

5. Post-Curing (If Required)

• Secondary heat treatment (e.g., 4 hrs at 200°C) to enhance:

  • Crosslinking density

  • Thermal stability

  • Volatile removal (critical for medical/food-grade)

6. Secondary Processing

• Cutting/Trimming: Die-cutting, CNC, laser, or waterjet

• Surface Treatments: Plasma coating, adhesive lamination

• Assembly: Bonding with metals/plastics (for multi-material parts)

7. Quality Control & Testing

• 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

8. Packaging & Storage

• Anti-static or vacuum-sealed packaging

• Labeling: Batch #, manufacture date, shelf life

• Storage: <30°C, 50% RH, away from direct sunlight

9. Documentation & Traceability

• Records: Batch logs, QC reports, material certificates

• ERP/MES Integration: Real-time tracking of production KPIs (yield rate, scrap rate)

Best Practices for Solid Silicone Production

• 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

This comprehensive workflow ensures the production of high-quality solid silicone components that meet stringent performance and regulatory requirements.

Quality control

Foamed Silicone Production - Comprehensive Quality Control Guide

1. Raw Materials Inspection

• Silicone Base Quality: Verify viscosity, purity, and batch uniformity via Certificates of Analysis (CoA) and viscosity meters.

• Foaming Agent: Validate activation temperature and decomposition profile using DSC/TGA analysis.

• Additives: Confirm curing agents, colorants, and antistatic properties against Technical Data Sheets (TDS).

• Storage Conditions: Ensure proper labeling, shelf-life adherence, and contamination prevention.

2. Compounding & Mixing Control

• Mixing Uniformity: Confirm homogeneity through visual checks and small test molds.

• Degassing Efficiency: Monitor air bubble removal via vacuum tests and visual inspection.

• Batch Consistency: Assess color, viscosity, and reactivity using rheometers/viscometers.

• Temperature Control: Maintain optimal mixing temperature (critical for LSR) with digital thermometers.

3. Molding & Foaming Process

• Mold Temperature: Ensure consistent curing with thermocouples/IR sensors.

• Foaming Uniformity: Inspect bubble size/distribution via cross-section analysis.

• Cell Structure: Verify closed/open-cell formation microscopically or with dye tests.

• Curing Completeness: Test vulcanization via solvent rub or tensile strength checks.

• Dimensional Accuracy: Measure thickness/geometry using calipers or laser gauges.

4. Thermal & Mechanical Testing

• Hardness: Shore A 16-20 (ASTM D2240).

• Density: Gravimetric foaming level check (ASTM D792).

• Tensile Strength/Elongation: Universal tester (ASTM D412).

• Compression Set/Recovery: ASTM D395 compliance.

5. Chemical & Environmental Resistance

• UV Resistance: Accelerated exposure tests (ASTM G154).

• Water Absorption: Weight gain post-submersion (ASTM D570).

• Chemical Resistance: Soak tests in oils/solvents/acids.

• Flame Resistance: UL94 or ASTM D635 certification (if required).

6. Surface & Appearance Checks

• Texture/Defects: Visual/tactile inspection for cracks, pinholes, or inclusions.

• Color Uniformity: Colorimeter validation (if specified).

7. Final Product Validation

• Traceability: Batch logs, production dates, and operator records.

• Labeling/Packaging: Accuracy checks and integrity tests (drop/vibration).

• Certifications: RoHS, REACH, FDA compliance via third-party reports.

 

Packaging & Shipping

Applications

Applications of Solid Silicone

Solid silicone is a high-performance elastomer renowned for its exceptional durability, flexibility, and resistance to extreme environments. Its outstanding thermal stability, chemical resistance, and long-term reliability make it indispensable across multiple industries where precision sealing, insulation, and mechanical performance are critical.

Key Application Fields

1. Automotive & Transportation

• Seals & Gaskets (Engine, transmission, battery housings)

• Vibration Damping (Mounts, bushings, anti-noise components)

• Cooling System Components (Hoses, O-rings, thermal pads)

• EV Battery Protection (Insulation, flame-retardant barriers)

2. Electronics & Electrical

• Keypads & Conductive Components (Tactile switches, EMI shielding)

• Wire & Cable Insulation (High-voltage, heat-resistant coatings)

• LED Encapsulation (Optical clarity, UV resistance)

3. Medical & Healthcare

• Medical Seals & Valves (Syringes, pumps, respiratory devices)

• Surgical Instruments (Grips, sterile components)

• Wearable Devices (Skin-contact sensors, biocompatible parts)

4. Industrial & Machinery

• O-Rings & Static Seals (Hydraulic systems, pneumatic equipment)

• Mold Making & Tooling (High-temp resistant patterns)

• Conveyor Belts & Rollers (Abrasion-resistant surfaces)

5. Consumer Goods

• Kitchenware & Bakeware (Non-stick molds, food-grade seals)

• Sporting Goods (Dive masks, waterproof seals)

• Consumer Electronics (Waterproof gaskets for smart devices)

6. Energy & Power

• Solar Panel Sealing (Weatherproof junction box seals)

• Transformer & Electrical Insulation (High-dielectric-strength components)

• Oil & Gas Seals (Chemical-resistant gaskets for pipelines)

Solid silicone's versatility and performance characteristics make it the material of choice for demanding applications across these diverse industries.

Certifications

2. Major Certifications

(1) Compression Set Performance

• Standard: ASTM D1056-20

• Test Protocol: 1000 thermal cycles (-55°C to 125°C), 50% compression

• Results:

  • DC800-015: 1.1%

  • DC800-020: 1.3%

  • DC800-025: 1.6%

  • DC800-030: 2.3%

  • DC800-035: 3.1%

  • DC800-042: 3.4%

  • DC800-045: 4.2%

  • DC800-050: 3.9%

  • DC800-055: 4.0%

• Certification Body: SGS

• Highlights: Demonstrates outstanding long-term resilience and thermal stability across the full series.

(2) Dielectric Strength

• Standard: GB/T 1695-2005

• Results:

  • DC800-035: 3.0 kV/mm

  • DC800-042: 3.1 kV/mm

  • DC800-045: 3.1 kV/mm

• Certification Body: SGS

• Highlights: Ensures excellent insulation properties for high-voltage and sensitive electronic applications.

(3) Environmental & Safety Compliance

• RoHS: Fully compliant with EU Directive 2011/65/EU and its amendment (EU) 2015/863; all restricted substances within regulatory thresholds.

• REACH: No SVHCs (Substances of Very High Concern) detected.

• Halogen-Free: Non-detectable levels of fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).

• Certification Body: SGS

• Highlights: Environmentally friendly and non-toxic; suitable for applications requiring strict material safety.

(4) Low-Temperature Flexibility

• Standard: ASTM D1056-14

• Test Protocol: 180° bend at -55°C for 24 hours

• Results: No visible cracking or deformation

• Highlights: Maintains flexibility and integrity in extremely low temperatures, ideal for cold-environment applications.

3. Core Advantages

1. Broad Temperature Resistance

   • Operational range: -55°C to 125°C

   • Maintains stable performance across 1000 thermal cycles

2. Reliable Mechanical Strength

   • Compression set ≤ 4.2% across all variants

   • Resilient with minimal long-term fatigue

3. Superior Electrical Insulation

   • Dielectric strength ≥ 3.0 kV/mm

   • Optimized for sensitive electronic insulation needs

4. Full Environmental Certification

   • Certified RoHS, REACH, and halogen-free

   • Suitable for medical, consumer, and food-grade applications

5. Customizable & Versatile Product Line

   • Available in grades from DC800-015 to DC800-055

   • Customizable in thickness, hardness, and functional attributes

4. Key Application Areas

• Electronics: Shock-absorbing pads, EMI shielding seals

• Automotive: Weather seals, vibration dampening components

• Medical Devices: Eco-safe materials for sensitive applications

• Industrial Equipment: Durable gaskets and sealing systems

5. Quality Assurance

All certifications are issued by SGS, a globally recognized third-party testing body.
Traceable test reports include:

• Compression Set: SUIN21080062XXMR_CN

• Dielectric Strength: SHIN210805363XMR_CN

• Environmental Compliance: SHAEC2116203002/4002

Company Profile

Hangzhou Dachuang Kehua New Materials Co., Ltd. - Pioneering Advanced Silicone Material Solutions

Company Overview

Hangzhou Dachuang Kehua New Materials Co., Ltd. is a leading national high-tech enterprise specializing in the R&D, production, and sales of high-performance silicone materials. Headquartered in the Qingshanhu Science and Technology City in Hangzhou, Zhejiang-an integral part of China's National Science and Technology Innovation Corridor-the company is driven by technological innovation. With a dedicated team of industry experts, Dachuang Kehua has developed a comprehensive platform encompassing R&D, manufacturing, and sales. The company collaborates with top research institutions, establishing joint laboratories that push the boundaries of silicone material applications and industrialization.

Core Strengths

1. Technological Leadership

   • Innovative production processes and equipment, offering a diverse range of products, including liquid/solid foamed silicone, thermal conductive materials, and potting compounds.

   • The revolutionary DC800 Series Liquid Foamed Silicone technology requires no external foaming agents, is eco-friendly, and boasts superior weather resistance, flame retardancy, and rebound performance.

2. Industry-Leading Certifications

   • Quality management systems: ISO9001, IATF16949 (automotive industry standard).

   • Global certifications: UL/CUL UL157, EU RoHS 2.0, REACH, and SGS comprehensive testing.

3. Tailored Solutions for Diverse Industries
   Products are designed to meet the needs of high-end industries such as new energy vehicles, energy storage, 5G communications, and aerospace, providing sealing, thermal conduction, cushioning, and fireproofing solutions.

Product Portfolio & Innovative Applications

1. Key Products

• Foamed Silicone: DC800 Series (low/medium/high density), DC900 Series (rigid foam), featuring IP68 sealing, shock absorption, sound insulation, and extreme temperature resistance (-55°C to 200°C).

• Thermal Conductive Materials: DC10 Series thermal pads, DC21 Series potting compounds, ideal for lightweighting and heat dissipation in battery packs.

• Fireproof Materials: DC400 Series ceramicized silicone rubber, designed for thermal runaway protection.

• Specialty Composites: DC600 Series (foamed silicone + PTFE), offering resistance to corrosion and chemicals.

2. Industry Applications

• New Energy Vehicles:

  • Power battery PACK sealing (IP68), liquid cooling plate support, cell cushioning (absorbing expansion stress).

  • Charging pile waterproofing/dustproofing (IP68), pouch cell spacers.

• Energy Storage Systems: Liquid-cooled cabinet sealing (IP67), cell fireproofing/insulation (ceramicized silicone).

• 5G Communications: Equipment housing sealing, EMI shielding, and aging resistance.

• Construction & Industry: Steel structure sealing strips, photovoltaic inverters (IP67, UL94 V-0 flame retardant).

R&D & Quality Assurance

• Laboratory Capabilities:

  • Over 30 performance tests, including mechanical properties, aging, salt spray, flammability, and electrical testing.

  • Advanced equipment: Universal tensile testers, thermal conductivity meters, environmental chambers, and more.

• Manufacturing Process: Fully automated mixing, vulcanization, cutting, and laminating processes ensure consistent product quality.

Market Reach & Clients

Dachuang Kehua serves global leaders in new energy vehicles (batteries, charging piles), energy storage, rail transit, and consumer electronics, providing high-performance material solutions to industry giants such as CATL, BYD, and Huawei.