| Customization: | Available |
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| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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Polysiloxane Silicone Rubber Coating: Advanced Anti-Corrosion Protection for the Photovoltaic Industry
Polysiloxane silicone rubber coating is a high-performance, single-component, room-temperature-curing solution specifically engineered to protect metal surfaces in the photovoltaic industry.
Designed for convenience and efficiency, it requires minimal surface preparation and is highly compatible with a wide range of other coatings, making it ideal for both new installations and maintenance of aged substrates.
Once cured, this versatile coating functions as both a primer and a topcoat, providing exceptional resistance to corrosion, salt spray, and water. Its inherent elasticity accommodates the thermal expansion and contraction of the substrate, helping to prevent cracks and ensuring long-term durability.
Moreover, repairs are straightforward - damaged areas can be coated directly without interface issues. The new layer bonds seamlessly with the existing surface, maintaining a uniform and long-lasting protective barrier.
Superior corrosion protection - Defends against rust, oxidation, and chemical exposure for long-term durability.
Salt spray resistance - Ideal for marine, coastal, and industrial environments where salt damage is a concern.
Waterproof barrier - Prevents moisture penetration, protecting substrates from hydrolysis and swelling.
UV & weather resistance - Maintains integrity under intense sunlight, extreme temperatures, and harsh weather conditions.
Elastic & adaptable - Accommodates thermal expansion, vibrations, and structural movement without cracking or delaminating.
High crack-bridging capability - Seals minor substrate cracks, preventing propagation and preserving structural integrity.
Abrasion & impact resistance - Withstands wear, scratches, and mechanical stress, making it ideal for industrial and high-traffic environments.
Minimal surface preparation - Bonds effectively to lightly prepared surfaces, saving time and labor costs.
Integrated primer & topcoat - Combines both layers in one, eliminating the need for separate applications.
Fast curing & recoating - Enables rapid application and reduces downtime during repairs or maintenance.
No interface reaction - Compatible with metals, concrete, plastics, and more, without adverse effects.
Easy to repair - Damaged areas can be patched seamlessly without compromising overall performance or appearance.
Long service life - Extends maintenance intervals and lowers lifecycle costs.
Industrial & Infrastructure - Bridges, pipelines, tanks, offshore platforms, and chemical plants.
Marine & Offshore - Ship hulls, docks, buoys, and coastal structures.
Automotive & Aerospace - Vehicle underbodies, aircraft parts, and other corrosion-prone components.
Construction & Architecture - Roofing, facades, and concrete surfaces in aggressive environments.
Cost-effective - Reduces maintenance expenses and prolongs asset lifespan.
Environmentally responsible - Available in low-VOC formulations to meet sustainability standards.
Customizable finishes - Offered in a variety of colors, textures, and gloss levels to suit both aesthetic and functional needs.
3. parameters
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Testing Item
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Standard Requirements
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Test Results
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Condition in Container
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No hard lumps after stirring, in a uniform state
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No hard lumps after stirring, in a uniform state
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Workability
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No obstacles when applying two coats
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No obstacles when applying two coats
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Appearance
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Normal
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Normal
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Hiding Power, g/m²
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≤150
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<130
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Drying Time, h
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Surface Dry Time: ≤4
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<4
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Hard Dry Time: ≤24
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<24
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Fineness, μm
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≤60
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35
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Water Resistance
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No abnormality after 168h
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No abnormality after 168h
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Acid Resistance, 5% HSO
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No abnormality after 168h
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No abnormality after 200h
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Salt Water Resistance, 3% NaCl
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No abnormality after 240h
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No abnormality after 240h
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Salt Spray Resistance
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No blistering, no peeling after 1000h
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No blistering, no peeling after 2000h
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Adhesion, Grade
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≤1
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0
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Flexibility, mm
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≤2
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2
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Impact Resistance, cm
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≥30
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50
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Coating Temperature Change Resistance
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No abnormality after 5 cycles
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No abnormality after 10 cycles
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Surface Preparation
Substrate must be clean, dry, and free of rust (≥Sa1/St2 grade), oil, and contaminants.
Product Preparation
Stir thoroughly to redistribute sedimentation. Use directly (one-component system; do not dilute).
Application Methods
Spraying, rolling, or brushing (refer to LZ100B Construction Operation Instructions).
Coverage Rate
| Dry Film Thickness (μm) | Consumption (kg/m²) | Coverage (m²/kg) |
|---|---|---|
| 150 | 0.29 | 3.45 |
| 200 | 0.39 | 2.59 |
| 250 | 0.48 | 2.07 |
| 300 | 0.58 | 1.72 |
| 350 | 0.68 | 1.48 |
Base Materials: Key ingredients-including silicone resins or polymers, curing agents, and optional additives (e.g., flame retardants, stabilizers, pigments)-are selected based on the required properties such as flexibility, heat resistance, and electrical insulation.
Mixing: Components are blended in precise proportions under controlled conditions to achieve the desired viscosity and reactivity, ensuring consistency, preventing contamination, and meeting strict formulation standards.
The mixed materials undergo homogenization-often under heat or vacuum-to achieve a uniform, bubble-free mixture.
Additional additives like pigments or thickeners may be incorporated to tailor color, texture, and performance characteristics.
If necessary, the compound is placed in a vacuum chamber to remove entrapped air.
This process eliminates bubbles that could compromise electrical insulation, structural integrity, or mechanical strength in the final application.
Molding: The potting adhesive is poured into custom molds to encapsulate components such as circuit boards, sensors, or automotive modules.
Dispensing: For automated production lines, the adhesive is applied directly onto components via precision dispensing equipment-ideal for high-throughput manufacturing.
Room Temperature Curing: Some formulations are designed to cure at ambient temperature without the need for external heat.
Heat Curing: For enhanced speed or performance consistency, adhesives are cured using ovens or autoclaves.
Curing parameters-time and temperature-are carefully controlled based on product specifications and end-use requirements.
Certain formulations undergo an additional heat treatment to enhance mechanical strength, thermal resistance, and chemical durability.
Post-curing also aids in the removal of residual volatiles, boosting long-term performance and stability.
Comprehensive quality assurance is conducted at each stage to verify product integrity:
Viscosity and flow testing
Curing profile monitoring (time & temperature)
Electrical insulation and thermal conductivity evaluation
Mechanical property assessments (e.g., hardness, adhesion, flexibility)
Any batches failing to meet standards are reworked or rejected to maintain product reliability.
The finished adhesive is packaged in user-specified formats such as jars, cartridges, or bulk containers.
Packaging includes application instructions, safety data sheets (SDS), and shelf-life information.
Packaged products are stored in cool, dry, controlled environments to maintain stability and extend shelf life.
Proper storage and transport conditions ensure the adhesive performs as intended upon delivery to the end user.
This rigorous production workflow ensures the delivery of high-performance potting adhesives tailored for demanding applications in electronics, automotive systems, and industrial environments. Every step is guided by strict safety, quality, and environmental protocols to guarantee product reliability and customer satisfaction.
Color Performance Testing
Color Adjustability: Evaluates the compatibility and stability of the coating with color pigments.
Color Difference (ΔE): Measures deviation from the standard color using a colorimeter.
Hiding Power: Determines the coating's ability to cover the substrate (e.g., black-and-white grid method).
Glossiness Test
Measures the surface reflectivity (high gloss, semi-gloss, matte, etc.) using a gloss meter.
Weather Resistance Testing
Artificial Accelerated Aging (QUV, Xenon Arc Test): Simulates UV, rain, and high temperatures to evaluate resistance to chalking, cracking, and discoloration.
Natural Exposure Test: Long-term outdoor testing for real-world durability.
Mechanical Performance Tests
Adhesion (Cross-cut Test, Pull-off Test): Assesses bonding strength between coating and substrate.
Elasticity/Flexibility (Bend Test, Impact Test): Evaluates crack resistance.
Abrasion Resistance (Abrasion Tester): Measures resistance to wear.
Stain Resistance
Simulates contamination (e.g., carbon black, dust) and evaluates self-cleaning ability after washing or rubbing.
Hydrophobicity
Contact Angle Test: Measures water droplet contact angle to assess water repellency.
Chemical Resistance
Evaluates resistance to acid rain, salt spray (neutral salt spray test), alkalis, etc.
Hazardous Substance Detection
VOC (Volatile Organic Compounds) Content: Compliance with environmental standards (e.g., GB 18582-2020).
Formaldehyde & Heavy Metals (Lead, Cadmium, etc.): Ensures non-toxicity.
Breathability Test
Measures water vapor transmission rate to prevent moisture and mold growth.
Scrub Resistance (Key for Interior Coatings)
Evaluates coating integrity after repeated scrubbing (e.g., GB/T 9266).
Mold & Mildew Resistance (For Humid Environments)
Assesses microbial growth resistance via mold culture tests.
Fire Resistance (For Special Applications)
Flame retardancy rating (e.g., GB 8624-2012).
High & Low-Temperature Resistance
Thermal cycling tests (e.g., -40°C to 80°C) to check for cracking or peeling.
Radiation Resistance (For Special Environments)
Evaluates UV or gamma radiation resistance.
Non-Toxicity Verification
Biocompatibility tests (e.g., skin irritation test).
Thanks to their exceptional durability, weather resistance, hydrophobicity, and environmental friendliness, silicone-based coatings have become indispensable across a wide range of industries. Below are the key application areas:
Weather Resistance: Shields surfaces from UV radiation, rain, and extreme temperatures.
Anti-Pollution: Hydrophobic properties inhibit dirt, algae, and mold growth.
Color Retention: Preserves aesthetic appeal and resists fading over time.
Crack Bridging: Flexibility prevents cracks in concrete and masonry.
Low VOC & Non-Toxic: Safe for sensitive spaces such as homes, hospitals, and schools.
Mold & Mildew Resistance: Ideal for humid areas like bathrooms and kitchens.
Washability: Durable surfaces that can be cleaned easily without damage.
Waterproofing: Elastomeric coatings effectively seal flat roofs against leaks.
Solar Reflectivity: Reflective coatings reduce cooling costs by lowering roof temperatures.
Thermal Stability: Withstands high heat without degradation.
Chemical Resistance: Protects metal structures-such as bridges, pipelines, and tanks-from acids, alkalis, and saltwater.
High-Temperature Tolerance: Suitable for chimneys, exhaust systems, and industrial machinery.
Saltwater Resistance: Shields ships, docks, and offshore platforms from corrosion.
Fouling Resistance: Minimizes buildup of marine organisms as a non-toxic alternative to traditional antifouling paints.
Heat Resistance: Protects engine components, exhaust systems, and aircraft exteriors from high temperatures.
Protective Finishes: Provides scratch-resistant, long-lasting finishes for vehicles.
Self-Cleaning: Reduces dust accumulation and improves energy efficiency.
UV Protection: Extends the operational life of photovoltaic cells.
Dielectric Properties: Provides insulation for circuit boards and electronic components.
Thermal Management: Helps dissipate heat in sensitive electronic systems.
Non-Toxic & FDA-Approved: Safe for use in food processing equipment and packaging.
Hygienic Surfaces: Resists bacterial growth, making it ideal for hospitals and laboratories.
Water & Stain Repellency: Protects outdoor fabrics, footwear, and upholstery.
Breathable Comfort: Repels liquids without compromising airflow.
Preservation: Protects monuments, stonework, and artworks from weathering, pollution, and vandalism.
Smart Coatings: Self-healing, temperature-responsive, or photocatalytic technologies.
Medical Devices: Biocompatible coatings for surgical instruments and implants.
Space & Defense: Resists extreme temperatures and radiation for spacecraft and military applications.
Long-Lasting: Superior durability compared to acrylics and epoxies.
Eco-Friendly: Low-VOC, non-toxic, and sustainable.
Versatile: Adheres to concrete, metal, glass, plastics, and more.
Low Maintenance: Self-cleaning, stain-resistant, and easy to maintain.
Silicone-based coatings are transforming industries by delivering high performance, sustainability, and cost-effectiveness, making them a preferred alternative to traditional coatings.
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.
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.
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.
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.
Broad Temperature Resistance
Operational range: -55°C to 125°C
Maintains stable performance across 1000 thermal cycles
Reliable Mechanical Strength
Compression set ≤ 4.2% across all variants
Resilient with minimal long-term fatigue
Superior Electrical Insulation
Dielectric strength ≥ 3.0 kV/mm
Optimized for sensitive electronic insulation needs
Full Environmental Certification
Certified RoHS, REACH, and halogen-free
Suitable for medical, consumer, and food-grade applications
Customizable & Versatile Product Line
Available in grades from DC800-015 to DC800-055
Customizable in thickness, hardness, and functional attributes
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
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
With a robust foundation of international certifications and tested performance metrics, Dacchuang Kehua's DC800 foamed silicone series is an ideal material choice for high-reliability and safety-critical applications. We remain committed to delivering innovative, environmentally conscious, and high-performance silicone solutions.
Hangzhou Dachuang Kehua New Materials Co., Ltd. - Innovating Advanced Silicone Solutions
Hangzhou Dachuang Kehua New Materials Co., Ltd. is a national high-tech enterprise focused on the research, production, and sales of high-performance silicone materials. Headquartered in Hangzhou's Qingshanhu Science and Technology City-a key hub within China's National Science and Technology Innovation Corridor-the company thrives on cutting-edge R&D and collaboration with top research institutions. With a team of industry experts, Dachuang Kehua has built an integrated platform for innovation, manufacturing, and sales, driving advancements in silicone material applications.
Technology-Driven Innovation
Proprietary production processes for liquid/solid foamed silicone, thermal conductive materials, and potting compounds.
Breakthrough DC800 Series Liquid Foamed Silicone:
No external foaming agents required (eco-friendly).
Superior weather resistance, flame retardancy (UL94 V-0), and rebound performance.
Certified Excellence
ISO9001, IATF16949 (automotive standard).
Global compliance: UL/CUL, RoHS 2.0, REACH, SGS tested.
Industry-Specific Solutions
Tailored for new energy vehicles (EV batteries, charging piles), energy storage, 5G communications, and aerospace, offering:
Sealing (IP68), thermal management, shock absorption, and fireproofing.
1. Core Products
Foamed Silicone:
DC800 Series (low/medium/high density) - IP68 sealing, vibration damping, extreme temps (-55°C to 200°C).
DC900 Series (rigid foam) - Structural support, sound insulation.
Thermal Management:
DC10 Series pads & DC21 Series potting compounds - Lightweight heat dissipation for batteries.
Fireproof Materials:
DC400 Series ceramicized silicone - Thermal runaway protection.
High-Performance Composites:
DC600 Series (silicone + PTFE) - Chemical/corrosion resistance.
2. Key Industries Served
EV/Batteries: Cell cushioning, liquid cooling plate support, PACK sealing (IP68).
Energy Storage: Fireproof insulation, cabinet sealing (IP67).
5G/Electronics: EMI shielding, housing waterproofing.
Construction/Industrial: PV inverters (UL94 V-0), steel structure seals.
Advanced Testing Lab: 30+ performance tests (thermal, mechanical, flame resistance, etc.).
Automated Production: Precision mixing, vulcanization, and cutting for consistency.
Partnering with industry leaders like CATL, BYD, Huawei, and global players in new energy, energy storage, and telecom.
Q1. How can I obtain an accurate project-specific quotation?
To provide a precise quote, please share the following details:
Surface type (e.g., concrete, metal, composite) and its current condition.
Required dry film thickness (μm).
Total coverage area (m²) along with project drawings.
Environmental exposure (marine, industrial, coastal, etc.).
Packaging preference (20L drums, IBC tanks, bulk).
Delivery terms (FOB, CIF, DDP) and destination port.
Any certification requirements (ISO, UL, EN).
Q2. What OEM customization do you offer?
We provide comprehensive OEM services, including:
Custom formulation adjustments (viscosity, cure time).
Private labeling and branded packaging.
Tailored technical datasheets and safety documentation.
Batch-specific quality control reports.
Minimum order: 2 tons (negotiable for long-term partners).
Q3. What are the application limitations?
Critical parameters for optimal application:
Ambient temperature: 5°C to 35°C.
Surface temperature: Minimum 3°C above dew point.
Relative humidity: ≤85%.
Recoat window: 2-4 hours at 23°C/50% RH.
Q4. How should samples be requested?
Free 500g samples for color matching.
Performance test samples (1kg) available for a nominal fee.
Domestic lead time: 3-5 working days.
International shipping via DHL/FedEx at cost.
Q5. What is the product's shelf life?
Unopened: 12 months in original sealed containers (store at ≤25°C/40% RH).
Opened: 3-month usability with nitrogen blanketing.
Q6. What certifications do you hold?
ISO 12944 (corrosion protection).
GB/T 23446 (Chinese waterproofing standard).
EN 1504-2 (concrete protection).
Test reports: NACE TM0304, ASTM D5894.
Q7. What are your production lead times?
<5 tons: 7 days (expedited: 3 days, +20% fee).
5-20 tons: 10 days (expedited: 5 days, +15% fee).
>20 tons: 15 days (expedited: 7 days, +10% fee).
Q8. What payment terms do you accept?
New clients: 50% advance + 50% against B/L copy.
Established clients: 30-day L/C at sight.
Projects >$50k: Milestone-based payments.
Q9. How does it perform in extreme climates?
Arctic: Flexible at -45°C (ASTM D746).
Desert: UV-resistant >10,000 hours (ISO 11507).
Tropical: Withstands 100% humidity (ASTM D2247).
Seismic zones: Accommodates 5mm substrate movement.
Q10. What technical support do you provide?
On-site application training.
DFT measurement equipment calibration.
Failure analysis with lab testing.
Annual coating integrity audits.
Q11. Are eco-friendly formulations available?
Zero-VOC option (≤5g/L).
Recyclable packaging program.
GRS-certified bio-based materials.
Environmental Product Declaration (EPD) upon request.
Q12. How do you handle quality complaints?
Our 4-step resolution:
Sample collection within 48 hours.
Lab analysis report in 5 working days.
On-site assessment if required.
Replacement guaranteed within 30 days.
Color Matching: Digital spectrophotometer (ΔE<0.5 accuracy).
Project Calculation: Free consumption estimation software.
Emergency Hotline: 24/7 support (+86 XXX XXXX XXXX).
Documentation: Custom O&M manuals in multiple languages.
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