Waterborne Inorganic Zinc-RichPrimer
KF-WS100 Water-Based Inorganic Zinc Primer
KF-WS100 Waterborne Inorganic Zinc-Rich Primer uses waterborne ethyl silicate as the base material, reacting and curing with ultrafine zinc powder (>80%) to form an inorganic zinc silicate coating. The waterborne system is zero-VOC and environmentally friendly. The coating withstands salt spray for more than 3000h and temperatures up to 400 degrees. Dual anti-rust mechanism of cathodic protection + barrier protection. Widely used for environmentally friendly anti-corrosion coating in C5-grade severe corrosion environments such as bridges/offshore wind power/ships/marine engineering.
ProductsOverview
Waterborne Inorganic Zinc-Rich Primer is a heavy-duty anti-corrosion coating designed by KeXin New Material in accordance with ISO 12944 standards. It is scientifically formulated with high-quality resins and high-performance anti-rust pigments, offering excellent anti-corrosion performance and adhesion. Widely used for protective coating in heavy-duty anti-corrosion fields such as steel structures, bridges, petrochemicals, and ships.
The product has passed rigorous salt spray testing (>1000h) and adhesion testing (>5MPa), and with a complete base-intermediate-topcoat system, it can provide long-lasting protection for 15-25 years. Kexin provides free coating design solutions and technical support services.
Why choose a water-based inorganic zinc-rich primer?
CoreAdvantages
Zinc Content >80% · Dual Protection
Ultra-fine spherical zinc powder content greater than 80% ensures tight packing and electrical contact between zinc particles. The coating simultaneously provides cathodic protection (sacrificial anode) and barrier protection, a dual anti-rust mechanism. Salt spray resistance greater than 3000h is 1.5 times that of epoxy zinc-rich. It is the primer with the strongest anti-rust performance in heavy-duty anti-corrosion coating systems.
Waterborne Zinc Silicate · Zero VOC
The waterborne ethyl silicate system uses water as solvent and reaction medium. Zero VOC and zero organic solvents make it an environmentally friendly alternative to solvent-based inorganic zinc-rich. Its curing mechanism differs from waterborne epoxy, relying on hydrolysis and polycondensation of ethyl silicate to form a film with stronger adhesion.
Resistant to 400 degrees · High Temperature Compatible
The inorganic zinc silicate coating withstands temperatures up to 400 degrees. It is fully compatible with silicone high-temperature topcoats and thermal spray aluminum/zinc coating systems. Suitable as a primer for high-temperature equipment such as high-temperature pipelines/chimneys/incinerators, as well as for sealing and repairing thermal spray coatings.
Professional coating technology support services
Kexin has an experienced coating R&D and application team providing full-process support — from substrate analysis, coating selection and process-parameter optimization to on-site application guidance.
Eco-compliant green manufacturing system
All products are RoHS/REACH certified and their VOC content meets national environmental standards. Environmental performance test reports from authoritative third-party testing organizations such as SGS and CTI are provided.
Complete quality control and batch traceability
A comprehensive quality control system is in place from raw material intake to finished product delivery. Each batch of products undergoes rigorous physical and chemical performance testing and coating simulation testing. A batch test report and product quality certificate are included with each shipment.
TechnicalSpecifications
Basic parameters
Performance
The above technical parameters are from the testing data of Kexin New Materials Laboratory (ISO 17025 certified). Actual values may vary slightly due to construction environment and substrate conditions. For the latest technical data, please contact technical support to obtain the COA test report.
Frequently AskedQuestions
ApplicationProcess
Surface preparation
Clean substrates thoroughly of oil and rust. Blast steel to Sa2.5. Pre-treat per product spec to keep the substrate clean. Ambient 5-40°C, relative humidity<85%。
Primer / pre-treatment
Select the matching primer or pre-treatment per substrate and system. Mix strictly at the stated ratio and control DFT. Proceed after the primer dries; pre-stripe critical areas.
Main-coat application
Apply the main coat per the process spec, strictly controlling DFT, temperature/humidity and flash-off to keep the film uniform without sagging or pinholes.
Curing process
Bake or air dry at room temperature until fully cured according to product requirements. Maintain a uniform oven temperature (±5°C) and gradually increase the temperature to avoid coating defects. For room temperature curing, ensure adequate ventilation and suitable humidity.
Inspection & acceptance
We test all indicators including film thickness, adhesion, gloss, color difference, and chemical resistance. We conduct comprehensive performance testing according to relevant standards. After all tests pass, we issue a test report and quality assurance certificate, and ship the product in dust-free packaging.
ApplicationCases
Bridge water-based inorganic zinc-rich
Eco-friendly, long-service-life anti-corrosion — water-based inorganic zinc-rich primer sprayed on long-span bridge steel structures
Offshore wind water-based inorganic zinc-rich
Spraying water-based inorganic zinc-rich primer on offshore wind foundation steel structures
Petrochemical Equipment Waterborne Inorganic Zinc-Rich
Petrochemical reactor and storage tank waterborne inorganic zinc-rich primer spraying
Waterborne Inorganic Zinc-Rich for Ships
Waterborne Inorganic Zinc-Rich Primer Spraying for Ship Steel Structures, Shipbuilding, Environmental Protection
Waterborne Inorganic Zinc-Rich for Sluice Gates
Waterborne Inorganic Zinc-Rich Primer Spraying for Steel Gates in Water Conservancy Projects
Waterborne Inorganic Zinc-Rich for Building Steel Structures
Waterborne Inorganic Zinc-Rich Primer Spraying for Large-Span Building Steel Structures
Transmission tower water-based inorganic zinc-rich
Waterborne Inorganic Zinc-Rich Primer Spraying for High-Voltage Transmission Towers
Waterborne Inorganic Zinc-Rich for Steel Structure Venues
Spraying water-based inorganic zinc-rich primer on stadium steel structures
Waterborne Inorganic Zinc-Rich for Industrial Pipe Racks
Waterborne Inorganic Zinc-Rich Primer Spraying for Industrial Pipe Rack Steel Structures
Waterborne Inorganic Zinc-Rich for Storage Tanks
Waterborne Inorganic Zinc-Rich Primer Spraying for Large Storage Tank Steel Structures
Waterborne Inorganic Zinc-Rich for Offshore Platforms
Waterborne Inorganic Zinc-Rich Primer Spraying for Offshore Platform Modules
Waterborne Inorganic Zinc-Rich for Steel Bridge Decks
Waterborne Inorganic Zinc-Rich Primer Spraying for Orthotropic Steel Bridge Decks
Related coatingsRecommended
Epoxy MIO intermediate coat
Single-channel 150μm · Mica iron oxide shielding · Adhesion ≥5MPa
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Polyurethane acrylic topcoat
95GU Gloss · QUV2000h · Color and Gloss Retention
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Inorganic zinc silicate primer
Temperature resistant up to 400℃ · Marine engineering specific · Inorganic bonding
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Direct-to-rust primer
No sandblasting required; can be applied to rust-covered surfaces; saves 60% on costs.
Learn more→Waterborne Inorganic Zinc-Rich Primer·Factory direct supply
Kexin water-based inorganic zinc-rich primer supplied direct from the factory. Free sample testing, on-site engineer support and ISO-certified quality assurance.
Related articles & news
Further reading: technical articles and industry news from Kexin New Materials