| Customization: | Available |
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| Material: | Organic Silicone |
| Application: | Household, Medical, Industrial, Agricultural |
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With the continuous strengthening of national environmental protection policies, the selection of building materials-particularly interior and exterior wall coatings-has become increasingly stringent. These coatings are expected to deliver both decorative and protective functions.
From a decorative standpoint, exterior wall coatings must offer excellent color adjustability and strong compatibility with color pastes, while interior wall coatings should provide rich, vibrant colors and high coverage.
From a protective perspective, exterior walls endure constant exposure to wind, rain, and temperature fluctuations, making it crucial to select coatings that resist cracking, chalking, and weathering. Meanwhile, interior wall coatings are expected to be scrubbable, breathable, and manufactured from environmentally friendly, non-toxic raw materials.
Silicone materials-polymers with a silicon-oxygen backbone and organic groups attached-combine the advantages of both organic and inorganic substances. Coatings formulated with silicone or silicone-modified polymers as the film-forming component demonstrate superior performance, including:
Resistance to extreme temperatures, UV radiation, and weathering
Excellent water repellency, stain resistance, and chemical resistance
Environmental friendliness, non-toxicity, and elasticity
In recent years, such coatings have rapidly advanced within the coatings industry, driven by their outstanding functional and environmental properties.
Excellent corrosion resistance - Provides long-term protection against rust, oxidation, and chemical exposure.
Salt spray resistance - Ideal for marine, coastal, and industrial environments where salt-induced degradation is a concern.
Water resistance - Forms a waterproof barrier, preventing moisture ingress and protecting substrates from hydrolysis and swelling.
UV and weather resistance - Maintains performance under extreme sunlight, temperature fluctuations, and harsh weather conditions.
2. Exceptional Durability & FlexibilityOutstanding elasticity - Accommodates substrate movement (thermal expansion, vibrations, and structural shifts) without cracking or delamination.
High crack resistance - Bridges minor substrate cracks and prevents further propagation, ensuring long-term structural integrity.
Abrasion and impact resistance - Withstands mechanical wear, scratches, and physical stress, making it suitable for high-traffic and industrial applications.
Minimal surface preparation required - Adheres well to lightly prepared surfaces, reducing labor and time costs.
Integrated primer and topcoat functionality - Eliminates the need for multiple layers, streamlining the coating process.
Fast curing and recoating - Allows for quick application and reduces downtime in repair or maintenance projects.
4. Seamless Performance & RepairabilityNo interface reaction - Compatible with various substrates (metal, concrete, plastics, etc.) without adverse chemical interactions.
Easy repair and touch-up - Damaged areas can be spot-repaired without compromising the coating's overall performance or appearance.
Long service life - Reduces the frequency of recoating, lowering lifecycle costs.
Industrial & Infrastructure - Bridges, pipelines, offshore platforms, tanks, and chemical plants.
Marine & Offshore - Ship hulls, docks, buoys, and coastal structures.
Automotive & Aerospace - Underbody coatings, aircraft components, and corrosion-prone metal parts.
Construction & Architectural - Roofing, facades, and concrete protection in aggressive environments.
Cost-effective - Reduces maintenance and extends asset lifespan.
Eco-friendly options available - Low-VOC formulations comply with environmental regulations.
Customizable finishes - Available in various colors, textures, and gloss levels for 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 |
The core ingredients - silicone resins or polymers, curing agents (hardeners), and optional fillers or additives (e.g., flame retardants, stabilizers, pigments) - are selected based on the desired properties such as flexibility, temperature resistance, and electrical insulation.
These materials are precisely weighed and mixed to achieve the required viscosity, workability, and curing characteristics. Mixing is performed under controlled conditions to prevent contamination and ensure consistency.
The blended materials undergo a homogenization process under controlled conditions (often with heat or vacuum) to eliminate air bubbles and achieve a uniform consistency.
Additional ingredients - such as pigments or thickeners - may be added at this stage to impart specific colors, textures, or performance characteristics.
For formulations where bubble-free performance is critical, the mixture is placed in a vacuum chamber to remove trapped air. Degassing helps eliminate bubbles that could compromise the adhesive's quality, mechanical integrity, or electrical insulation properties.
Depending on the application:
Molding: The prepared adhesive is poured into molds shaped to fit the target components (e.g., circuit boards, sensors, or automotive parts).
Dispensing: In high-volume or industrial settings, automated dispensing equipment applies the adhesive directly to the components, ensuring efficiency and precision.
The adhesive cures - hardens and develops its final properties - through one of two methods:
Room Temperature Curing: The adhesive cures over time at ambient conditions, activated by the curing agent.
Heat Curing: The adhesive is placed in an oven or autoclave to accelerate curing and ensure consistent performance.
Curing time and temperature are tailored to the specific formulation and required properties.
Some products undergo additional heat treatment after initial curing. Post-curing enhances mechanical strength, chemical resistance, and thermal stability. It can also help drive off residual solvents or volatiles, improving long-term performance.
At each stage, rigorous quality checks are performed to ensure the product meets specifications and industry standards. Common tests include:
Viscosity and flow behavior
Curing time and temperature verification
Electrical insulation resistance
Thermal stability and mechanical strength
Any nonconforming batches are rejected or reprocessed to maintain consistent quality.
Once cured and tested, the adhesive is packaged in appropriate formats - such as jars, cartridges, or bulk containers - according to customer needs.
Packaging is labeled with detailed instructions, safety information, and shelf-life specifications to guide proper use.
Finished products are stored under controlled conditions (e.g., cool, dry environments) to preserve quality until use. The adhesives are then shipped to customers, ready for application in electronics, automotive systems, or industrial equipment.
Throughout the entire process, strict quality assurance and safety protocols are followed to ensure the potting adhesive delivers reliable performance in its intended 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.
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. Located in Qingshanhu Science and Technology City, Hangzhou-a key hub within China's National Science and Technology Innovation Corridor-the company thrives on cutting-edge R&D and close collaborations with top research institutions.
With a team of industry experts, Dachuang Kehua has established an integrated platform that seamlessly combines innovation, manufacturing, and sales, driving continuous advancements in silicone material applications across diverse industries.
Proprietary processes for liquid and solid foamed silicone, thermal conductive materials, and potting compounds
Breakthrough DC800 Series Liquid Foamed Silicone:
Requires no external foaming agents (eco-friendly)
Exceptional weather resistance, flame retardancy (UL94 V-0), and resilience
Quality systems: ISO 9001, IATF 16949 (automotive standard)
Global compliance: UL/CUL, RoHS 2.0, REACH, SGS-tested
Tailored for new energy vehicles, energy storage, 5G communications, and aerospace
Enabling IP68 sealing, thermal management, shock absorption, and fire protection
Foamed Silicone
DC800 Series (low/medium/high density): IP68 sealing, vibration damping, extreme temperature resilience (-55°C to 200°C)
DC900 Series (rigid foam): Structural support, sound insulation
Thermal Management
DC10 Series pads & DC21 Series potting compounds: Lightweight, efficient heat dissipation for batteries
Fireproof Materials
DC400 Series ceramicized silicone: Thermal runaway protection
High-Performance Composites
DC600 Series (silicone + PTFE): Outstanding chemical and corrosion resistance
Electric Vehicles & Batteries: Cell cushioning, liquid cooling plate support, PACK sealing (IP68)
Energy Storage: Fireproof insulation, cabinet sealing (IP67)
5G & Electronics: EMI shielding, waterproof housings
Construction & Industrial: PV inverter sealing (UL94 V-0), steel structure seals
Advanced testing laboratory with 30+ performance tests (thermal, mechanical, flame resistance, etc.)
Automated production lines ensuring precision in mixing, vulcanization, and cutting for consistent quality
Trusted by industry leaders such as CATL, BYD, Huawei, and other global innovators in new energy, energy storage, and telecommunications, Dachuang Kehua continues to deliver cutting-edge silicone solutions that meet the most demanding performance and environmental standards.
Certifications
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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