A Robust Choice for Heavy-Duty Corrosion Protection of Steel Structures in Petrochemical Industry and Marine Environments
STWD969 Metal Energy-Saving Anticorrosive Coating
Formulated with high-performance resin binder and glossy flaky metallic materials, STWD969 is engineered for extreme marine corrosive environments. It serves as a premium protective coating for steel structures in ships, offshore engineering facilities and petrochemical equipment.
I. Core Performance
Robust Resistance to Marine Salt Spray Corrosion and Petrochemical Equipment & Pipeline Corrosion
1. Ultimate Corrosion Resistance
Passes 3000-hour salt spray test; resistant to 240-hour immersion in 60 g/L salt water, effectively blocking high chloride ion penetration. Resistant to seawater erosion and alternating wet-dry corrosion, suitable for both tidal and splash zones, as well as anticorrosion of equipment and pipelines in the petrochemical sector.
2. Dense Protection
The resin contains abundant ether bonds, urea bonds and urethane bonds, forming a dense and tough coating film. The flaky metallic materials with outstanding aspect ratio create multi-layer shielding, greatly prolonging the penetration path of corrosive media.
3. Weather Resistance & Impact Resistance
No abnormality under 200 °C temperature cycling; resistant to 2000-hour artificial weathering. Withstands wave impact and mechanical abrasion, adapting to high temperature, high humidity and UV radiation in marine environments.
4. Application Compatibility
One-component system applicable by brush, spray or roller. Can be applied at temperatures as low as -5 °C, suitable for complex marine operations and petrochemical steel structure engineering projects.
II. Extensive Applications for Full Corrosion Protection in Petrochemical and Marine Sectors,
with Energy Saving, Emission Reduction and Long-Term Durability
1. Ships & Offshore Engineering Equipment
Hull waterline/bottom, ballast tanks, decks, offshore platform legs and jackets; protects against seawater corrosion and biofouling, as well as petrochemical equipment and pipeline engineering.
2. Ports & Coastal Facilities
Steel piles, gates, cross-sea bridge piers and breakwaters, defending against salt spray and tidal erosion across various fields.
3. Marine Energy Equipment
Offshore wind turbine tower foundations, outer walls of subsea oil and gas pipelines, seawater desalination units, and petrochemical equipment installation projects, adapting to long-term service and dynamic working conditions.
4. Marine Aquaculture & Floating Bodies
Metal structures of net cages, buoys and aquaculture platforms to extend service life; internal and external anticorrosion projects for large petrochemical storage tanks.
III. Core Advantages
Beyond Corrosion Protection – Economic and Energy-Saving Value
1. Primer-Topcoat in One
Can be directly applied to metal surfaces, functioning as both primer and topcoat, simplifying construction procedures and reducing overall costs.
2. Energy Saving & Temperature Reduction
Flaky metallic pigments reflect light and thermal radiation, lowering substrate surface temperature and reducing thermal stress damage, ideal for high-temperature marine environments.
3. Antistatic Safety
The coating exhibits antistatic properties to prevent static accumulation, complying with safety production requirements for petrochemical engineering.
4. Long-Lasting Durability
Thin coating achieves high-film protection. Recommended dry film thickness: 120–240 μm, with a service life of over 15 years.
IV. Key Construction Guidelines
1. Surface Preparation
Blast metal substrates to Sa2.5 or power tool clean to St3 grade, ensuring a clean, dry surface.
2. Application Parameters
Viscosity: 250 cps at 20 °C; solid content ≥ 68%.
At 20 °C: dry to touch in 4 h (less than 2 h in summer with higher temperatures); full cure in 24 h; recoating interval: 2–23 h.
3. System Recommendations
When used as primer or intermediate coat, it can be combined with polyurethane or Asplit 8028 topcoat to enhance weather resistance and antifouling performance, forming a complete protective system.
For detailed technical specifications, construction solutions or samples, please contact:
SWD New Material (Shanghai) Co., Ltd.
Technical & Sales Team Managers
Address: 3rd Floor, Building 38, Lane 1688, Lianhang Road, Minhang District, Shanghai, China
Post time: Mar-19-2026