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Heavy-Duty Anti-Corrosioncoating system

KF-SV100 Heavy-Duty Anticorrosive System

The KF-SV100 heavy-duty anti-corrosion coating system is a one-stop anti-corrosion solution provided by Kexin for major projects. It offers a complete coating package tailored to ISO 12944 corrosion categories (C3/C4/C5/CX) and design service life (5-25 years), consisting of epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate coat, and polyurethane/polysiloxane topcoat. Full-process services are provided, ranging from coating system selection, coating process design, on-site construction guidance, to quality acceptance.

9Major Series
All-substrate coverage
95GU+
high-gloss baked finish
5MPa+
adhesion strength
500h+
Salt spray resistance
200°C
Baking temperature
ROHSCertification
Eco compliance
ΔE<1
precise colour control
12 months
Shelf Life
SourceFactory
Factory-direct quality

ProductsOverview

The heavy-duty anti-corrosion coating system is a heavy-duty anti-corrosion paint designed by Kexin New Materials in accordance with the ISO 12944 standard. It is scientifically formulated with high-quality resins and high-performance anti-rust pigments, offering excellent corrosion resistance and adhesion. It is 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 heavy-duty anticorrosion coating system?

✓
Zinc content ≥80% · Double protection• Cathodic protection + barrier protection, salt spray >3000h
✓
C5-M, the highest corrosion rating.Verification in extreme environments such as cross-sea bridges and offshore platforms.
✓
On-site engineer guidanceFree on-site service within the Pearl River Delta region; remote technical support available for other areas.
✓
Fast dispatch within 48 hoursRegular products are readily available; custom orders take 3-7 business days.
✓
Complete coating system solutionsMatching base, intermediate, and topcoat designs, one-stop purchasing.
✓
RoHS / REACH environmental compliancePassed SGS/CTI third-party testing, exported to 50+ countries worldwide.

CoreAdvantages

One-stop coating system solutions

The customer's coating engineer customizes the optimal coating system solution based on project parameters such as corrosion environment (ISO 12944 C2-CX), design life (5-25 years), substrate type, and application conditions. A full range of coating products and construction process guidance is provided to eliminate customer selection difficulties.

ISO 12944 international standard design

Designed in accordance with the international standard ISO 12944 "Corrosion protection of steel structures by protective paint systems". The coating system is designed based on atmospheric corrosivity categories (C1-CX), immersion categories (Im1-Im4), and soil categories. A coating system solution with a 25-year design life is provided to meet the durability requirements of major projects.

Technical support for major projects

Full-process technical support from coating system selection/sample preparation/process parameter determination/on-site construction guidance/quality inspection and acceptance. Kexin coating engineers can provide on-site services to ensure coating quality. Cooperate with project supervisors and owners for third-party inspection and verification of coating quality.

Professional coating technology support services

Kexin boasts an experienced coatings R&D and application technology team, providing comprehensive services from substrate analysis, coating selection, and process parameter optimization to on-site application guidance. We work in conjunction with our clients' coating production lines to fine-tune coating application parameters, ensuring optimal coating quality and production efficiency.

Eco-compliant green manufacturing system

All products are RoHS/REACH certified and meet national environmental standards for VOC content. Water-based and high-solids, low-VOC formulations are continuously iterated to meet increasingly stringent environmental protection requirements. Environmental performance test reports from authoritative third-party testing institutions 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. Batch numbers are fully traceable, allowing for tracking of raw material origins and production process data. Each product comes with a batch test report and product warranty certificate for customer peace of mind.

TechnicalSpecifications

Basic parameters

Suitable substratesCovers all common substrate types
Coating typesAcrylic / PU / epoxy / UV
Curing methodBaking / air drying / UV curing
Gloss rangeHigh gloss / semi-gloss / matt
Colour optionsPrecise matching in any colour
Industries servedUsed across many industries
Environmental certificationROHS/REACH/GB
Packaging Specs4L/20L drum

Performance

Adhesion (cross-cut)Level 0-1 (5B)
Pencil hardnessH-2H
Salt spray resistance240-500h
Damp-heat resistanceNo abnormalities in 500 hours
Resistant to hand sweatNo abnormalities in 48 hours
RCA wear-resistant>200 times
Impact resistance50kg·cm
VOC content<420g/L

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

Which substrates does it suit?+
Suitable for sandblasting and rust removal up to Sa2.5 grade on carbon steel and cast iron surfaces. The substrate must be free of oil, rust, and old paint; a roughness of Rz40-75μm is optimal.
Why can't it be left exposed?+
Epoxy is not UV-resistant and chalks under long exposure. It must be paired with an epoxy MIO intermediate coat and a weather-resistant topcoat to form a complete system.
Which primer or topcoat completes the system?+
We recommend using the same series of primers and topcoats from Kexin to ensure coating system compatibility and optimal performance. Kexin technical engineers can design a complete primer-intermediate-topcoat system solution free of charge based on your specific working conditions.
How to get samples and a quote?+
Free samples are provided for standard products (shipping costs borne by the customer), along with TDS and MSDS technical data. For bulk purchases, please contact 400-901-0757 or 13531350189. Samples start from 1kg, and bulk orders start from 20kg.
How do I pick the right grade for my operating conditions?+
Choosing the right coating requires comprehensive consideration of the substrate type, operating environment (temperature/humidity/chemical media), corrosion resistance requirements (ISO 12944 C1-C5M), application conditions, and budget. We recommend contacting our technical engineers at 400-901-0757 for professional selection guidance and free sample testing.
What is the MOQ and lead time?+
Sample orders start from 1kg, while regular product orders start from 20kg. In-stock products will be shipped within 48 hours, and customized products will take 3-7 business days. Door-to-door delivery is available within the Pearl River Delta region.

ApplicationProcess

1

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%。

2

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.

3

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.

4

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.

5

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

Cross-sea bridge protection system

Cross-sea bridge protection system

C5-M system for cross-sea bridge steelwork with 25-year design life

Offshore wind protection

Offshore wind protection

C5-M heavy-duty system design package for offshore wind jackets

Petrochemical protection

Petrochemical protection

C4 heavy-duty system package for petrochemical steel structures

Stadium heavy-duty protection

Stadium heavy-duty protection

C3 coating system for large stadium steelworks, designed maintenance-free for 25 years

HV tower protection

HV tower protection

C3-C4 outdoor maintenance-free system for HV transmission towers

Hydropower protection

Hydropower protection

Im2 immersed system for hydropower sluice gates and penstocks

Airport terminal protection

Airport terminal protection

C3 system for long-span airport terminal steelwork

Museum steelwork protection

Museum steelwork protection

C2-C3 high-decorative system for museum space-frame steelworks

Chemical park protection

Chemical park protection

C4-C5 heavy-duty system for chemical-park pipe racks and equipment

Heavy-duty anti-corrosion system for LNG receiving terminals

Heavy-duty anti-corrosion system for LNG receiving terminals

LNG Terminal C5-M Marine Industrial Coating System

Offshore airport protection

Offshore airport protection

C5-M extreme-marine system for offshore airport steelwork

Nuclear plant steelwork protection

Nuclear plant steelwork protection

ultra-long-life coating system for nuclear containment steelwork

Technical documents MSDS (Material Safety Data Sheet) TDS Technical Data Sheet

Heavy-duty anti-corrosion coating system·Factory direct supply

Kexin heavy-duty coating systems direct from the source factory. Free sample testing, on-site engineer guidance, ISO-certified quality assurance.

Free sample testing
On-site engineer guidance
Fast dispatch within 48 hours
ISO-certified factory · direct supply