Pigments Powder for Protective Coatings

Provider of Heavy-Duty Protective Solutions

At Deqing Demi Pigment Technology Co., Ltd., we produce inorganic pigments that are the foundation of high-performance protective coating systems. Our materials are used globally to protect critical infrastructure, from offshore oil rigs to chemical processing plants. We focus on the "purity" and "inertness" of our pigments, ensuring they do not contain trace elements that could initiate sub-film corrosion. We are a trusted partner for manufacturers supplying C4 and C5 category corrosion protection systems.

Protective Coating Applications

• Marine Coatings: Protection for ship hulls, decks, and superstructures.
• Offshore Structures: Coatings for oil platforms and wind turbine foundations.
• Chemical Plants: Acid and alkali resistant coatings for tanks and containment areas.
• Pipeline Coatings: External and internal linings for oil, gas, and water pipelines.

Protective Coating Technical Data

Functional Attributes for Protection

• Corrosion Mitigation: Particles increase the "tortuosity" of the film, slowing down the penetration of corrosive agents.
• Mechanical Reinforcement: High-density inorganic particles improve the film's resistance to impact and abrasion.
• Solvent Resistance: Completely unaffected by the strong solvents used in high-build protective coatings.
• Low Chloride Content: Ultra-low salt levels prevent the initiation of osmotic blistering in marine environments.

• Q: Can these pigments be used in zinc-rich primers?

  A: These inorganic oxides are non-reactive and are often used as tinting agents or extenders in high-performance primer systems without affecting the cathodic protection of the zinc.

• Q: How do they handle immersion in salt water?

  A: The mineral structure is completely stable in saline environments and will not degrade or leach color during long-term immersion.

Reliability and Compliance in Manufacturing

Our factory follows ISO 9001 standards to ensure that every delivery meets the strict purity requirements of the protective coatings industry. We provide full traceability from raw material to finished powder.

Technical Documentation: We provide detailed Certificates of Analysis (CoA) for every batch, including data on water-soluble salts and chloride levels, which are critical for coating specifications in the marine and oil & gas sectors.

Quantifying Hiding Power and Film Integrity

For protective coatings, opacity is not just an aesthetic requirement but a functional one. A coating with poor hiding power may be applied too thin in certain areas, leading to premature failure. We measure the "Scattering Coefficient" of our pigments to help formulators calculate the minimum pigment volume concentration (PVC) required to achieve complete opacity. This ensures that the coating provides a uniform barrier against environmental attack across the entire surface.