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| Material: | Organic Silicone |
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Polysiloxane Silicone Rubber Coating: Advanced Anti-Corrosion Solution for the Photovoltaic Industry
Polysiloxane silicone rubber coating is a high-performance, single-component, room-temperature-curing anti-corrosion coating, specially developed for metal protection in the photovoltaic industry.
This coating is designed for ease of use, requiring minimal surface preparation and offering excellent compatibility with a wide range of coatings - making it suitable for both new and aged substrates.
Once cured, the coating combines the properties of both a primer and a topcoat, delivering outstanding corrosion resistance, salt spray resistance, and water resistance. Its inherent elasticity allows it to accommodate the substrate's thermal expansion and contraction, effectively preventing cracks.
In addition, damaged areas can be repaired directly without any interface reaction, and the new coating seamlessly integrates with the existing layer for a uniform, long-lasting protective surface.
Outstanding corrosion protection - Shields against rust, oxidation, and chemical exposure for long-term durability.
Salt spray resistance - Ideal for marine, coastal, and industrial environments prone to salt damage.
Waterproof barrier - Prevents moisture penetration, protecting substrates from hydrolysis and swelling.
UV & weather resistant - Maintains performance under intense sunlight, temperature extremes, and harsh weather.
Elastic & adaptable - Accommodates thermal expansion, vibrations, and structural shifts without cracking or delaminating.
High crack-bridging ability - Seals minor substrate cracks, preventing further damage and ensuring structural integrity.
Abrasion & impact resistant - Withstands wear, scratches, and mechanical stress - perfect for industrial and high-traffic areas.
Minimal surface prep - Bonds well to lightly prepared surfaces, saving time and labor.
Integrated primer & topcoat - Combines both functions, eliminating the need for multiple layers.
Fast curing & recoating - Enables quick application and reduces downtime during repairs or maintenance.
No interface reaction - Compatible with metals, concrete, plastics, and more without adverse interactions.
Easy repairs - Damaged areas can be patched seamlessly without affecting overall performance or appearance.
Long service life - Extends maintenance intervals, reducing lifecycle costs.
Industrial & Infrastructure - Bridges, pipelines, tanks, offshore platforms, chemical plants.
Marine & Offshore - Ship hulls, docks, buoys, coastal structures.
Automotive & Aerospace - Underbody protection, aircraft parts, corrosion-prone components.
Construction & Architecture - Roofing, facades, concrete surfaces in aggressive environments.
Cost-effective - Minimizes maintenance costs and extends asset lifespan.
Environmentally responsible - Low-VOC formulations available to meet environmental standards.
Customizable finishes - Offered in a range of colors, textures, and gloss levels to suit aesthetic and functional requirements.
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: The primary ingredients-silicone resins or polymers, curing agents, and optional fillers or additives (e.g., flame retardants, stabilizers, pigments)-are chosen to meet specific performance requirements such as flexibility, temperature resistance, and electrical insulation.
Mixing: These materials are combined in precise ratios under controlled conditions to achieve the desired viscosity, workability, and curing characteristics, while preventing contamination and ensuring batch consistency.
The mixed materials are homogenized under controlled conditions (e.g., heat or vacuum) to ensure a uniform, bubble-free consistency and prevent defects in the final product.
Additional additives like pigments or thickeners can be introduced at this stage to adjust color, texture, or specific performance properties.
If needed, the mixture is placed in a vacuum chamber to remove entrapped air. This degassing step eliminates bubbles that could compromise the adhesive's mechanical strength and electrical insulation properties.
Molding: The prepared adhesive is poured into molds shaped to fit the components being encapsulated, such as circuit boards, sensors, or automotive parts.
Dispensing: Alternatively, the adhesive is applied directly onto components using automated equipment-ideal for high-volume or industrial applications.
The adhesive undergoes curing to harden and develop its final properties:
Room Temperature Curing: Suitable formulations cure at ambient conditions over a set period, requiring no additional equipment.
Heat Curing: For faster or more consistent results, the adhesive may be cured in an oven or autoclave.
Curing time and temperature depend on the formulation and desired performance.
Some formulations require additional heat treatment to further enhance mechanical strength, thermal stability, and chemical resistance.
Post-curing may also remove residual solvents or volatiles, improving long-term stability.
Throughout production, the adhesive is subjected to strict quality checks, including:
Viscosity and flow tests
Monitoring of curing time and temperature
Electrical insulation and thermal stability testing
Mechanical property evaluations
Any non-conforming batches are either corrected or discarded to maintain quality standards.
Once cured and tested, the adhesive is packaged in jars, cartridges, or bulk containers based on customer needs.
Packaging includes clear instructions, safety data sheets, and shelf-life information.
The finished product is stored in controlled conditions (e.g., cool, dry environments) to preserve stability until delivery.
Proper storage and handling ensure the adhesive remains effective when it reaches the end user.
Throughout the process, strict quality, safety, and environmental standards are maintained to deliver a high-performance potting adhesive suitable for electronics, automotive systems, and industrial applications.
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).
Depending on the application (interior/exterior) and the properties of silicone-based coatings, comprehensive testing is required to ensure decorative performance, durability, environmental safety, and special functionalities. Testing should comply with national (GB, ISO, ASTM) or industry standards.
Silicone-based coatings are widely used in various industries due to their exceptional durability, weather resistance, hydrophobicity, and environmental friendliness. Below are the key application areas:
Weather Resistance: Protects against UV rays, rain, and extreme temperatures.
Anti-Pollution: Prevents dirt, algae, and mold growth due to hydrophobic properties.
Color Retention: Maintains aesthetic appeal for years without fading.
Crack Bridging: Flexible silicone coatings prevent cracking in concrete and masonry.
Low VOC & Non-Toxic: Safe for homes, hospitals, and schools.
Mold & Mildew Resistance: Ideal for humid environments (bathrooms, kitchens).
Washability: Easy to clean without damaging the coating.
Waterproofing: Silicone elastomeric coatings prevent leaks in flat roofs.
Solar Reflectivity: Reduces building cooling costs (cool roof coatings).
Thermal Stability: Withstands high temperatures without degrading.
Chemical Resistance: Protects metal structures (bridges, pipelines, tanks) from acids, alkalis, and saltwater.
High-Temperature Resistance: Used in chimneys, exhaust systems, and industrial equipment.
Saltwater Resistance: Prevents corrosion on ships, offshore platforms, and docks.
Fouling Resistance: Reduces marine organism buildup (non-toxic alternative to traditional antifouling paints).
Heat-Resistant Coatings: Used on engine parts, exhausts, and aircraft exteriors.
Aesthetic & Protective Finishes: Scratch-resistant coatings for car bodies.
Self-Cleaning: Reduces dust accumulation, improving efficiency.
UV Protection: Extends the lifespan of photovoltaic cells.
Dielectric Properties: Used in circuit boards and electrical insulation.
Thermal Management: Heat dissipation coatings for electronics.
Non-Toxic & FDA-Approved: Used in food processing equipment and packaging.
Easy-to-Clean Surfaces: Prevents bacterial growth in hospitals and labs.
Water & Stain Repellency: Used in outdoor fabrics, shoes, and upholstery.
Breathability: Maintains comfort while repelling liquids.
Stone & Monument Preservation: Protects against weathering, pollution, and graffiti.
Smart Coatings: Self-healing, temperature-responsive, or photocatalytic coatings.
Medical Devices: Biocompatible coatings for implants and surgical tools.
Space & Defense: Extreme temperature and radiation resistance for spacecraft.
Long-lasting (superior durability compared to acrylics and epoxies).
Eco-friendly (low VOC, non-toxic, and sustainable).
Versatile (works on concrete, metal, glass, plastic, and more).
Low Maintenance (self-cleaning and stain-resistant properties).
Silicone coatings are revolutionizing industries by offering high performance, sustainability, and cost-effectiveness over 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.
Q1. How can I obtain an accurate project-specific quotation?
A1. Provide these key details for a precise quote:
Surface type (concrete/metal/composite) and condition
Required dry film thickness (μm)
Total coverage area (m²) with project drawings
Environmental exposure (marine/industrial/coastal)
Packaging format (20L drums/IBC tanks/bulk)
Delivery terms (FOB/CIF/DDP) and destination port
Certification requirements (ISO/UL/EN)
Q2. What OEM customization do you offer?
A2. Full OEM services include:
Custom formulation adjustments (viscosity/cure time)
Private labeling with brand-specific packaging
Technical datasheet and SDS customization
Batch-specific QC documentation
Minimum order quantity: 2 tons (negotiable for strategic partners)
Q3. What are the application limitations?
A3. Critical application parameters:
| Parameter | Operating Range |
|---|---|
| Ambient Temperature | 5°C to 35°C |
| Surface Temperature | 3°C above dew point |
| Relative Humidity | ≤85% |
| Recoat Window | 2-4 hours (23°C/50%RH) |
Q4. How should samples be requested?
A4. Sample protocol:
Free 500g samples for color matching
Performance test samples (1kg) available with nominal fee
Lead time: 3-5 working days domestically
International samples shipped via DHL/FedEx at cost
Q5. What is the product's shelf life?
A5. Shelf life specifications:
12 months in original sealed containers
Storage conditions: ≤25°C/40% RH in ventilated warehouse
Post-opening: 3-month usability with nitrogen blanketing
Q6. What certifications do you hold?
A6. Current certifications:
ISO 12944 (Corrosion Protection)
GB/T 23446 (Chinese Waterproofing Standard)
EN 1504-2 (Concrete Protection)
Test reports available: NACE TM0304, ASTM D5894
Q7. What are your production lead times?
A7. Standard manufacturing timeline:
| Order Volume | Standard Lead Time | Expedited Service |
|---|---|---|
| <5 tons | 7 working days | 3 days (+20% fee) |
| 5-20 tons | 10 working days | 5 days (+15% fee) |
| >20 tons | 15 working days | 7 days (+10% fee) |
Q8. What payment terms do you accept?
A8. Flexible payment options:
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?
A9. Validated performance:
Arctic: Maintains flexibility at -45°C (ASTM D746)
Desert: UV resistance >10,000 hours (ISO 11507)
Tropical: 100% humidity resistance (ASTM D2247)
Seismic zones: Accommodates 5mm substrate movement
Q10. What technical support do you provide?
A10. Comprehensive support package:
On-site application training
DFT measurement equipment calibration
Failure analysis with lab testing
Annual coating integrity audits
Q11. Are eco-friendly formulations available?
A11. Sustainable options:
Zero-VOC version (≤5g/L)
Recyclable packaging program
GRS-certified bio-based raw materials
EPD (Environmental Product Declaration) available
Q12. How do you handle quality complaints?
A12. Our 4-step resolution process:
Sample collection within 48 hours of notification
Lab analysis report in 5 working days
On-site technical assessment
Replacement commitment: 30-day resolution guarantee
EXTENDED SUPPORT SERVICES
Color Matching: Digital spectrophotometer service (ΔE<0.5)
Project Calculation: Free consumption estimation software
Emergency Response: 24/7 technical hotline (+86 XXX XXXX XXXX)
Documentation: Customized O&M manuals with multilingual options
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