High-Performance Anti-Corrosion & Anti-Rust Pigments by SemiJun

Our high-performance anti-corrosion pigments represent the benchmark in substrate protection for modern industrial applications. Whether you require salt spray resistance for heavy-duty maritime coatings or eco-friendly alternatives for automotive primers, our portfolio delivers precision-engineered solutions with industry-leading purity standards.

Molybdate & Chromate Series

Target Applications: High-gloss coatings, heavy metal compliant alternatives, light anti-corrosion steel structures.

JP-8018

  • Type Molybdate/Chromate Alt.
  • Appearance Pale yellow powder
  • Dosage 1-2%
  • Oil Absorption 15-20 g/100g
  • pH Value 7.5-9
  • 45µm Sieve Residue 0.5%
Key Features: Excellent alternative to chrome yellow; suitable for high-gloss finishes; complies with national standards.

JP-B808

  • Type Zinc Phosphate
  • Appearance Light yellow powder
  • Dosage 0.5-2%
  • Oil Absorption 25-45 g/100g
  • pH Value 6-8
  • 45µm Sieve Residue 0.2%
Key Features: Ideal replacement for chrome yellow; heavy metal content meets industry standards.

JP-8018-0

  • Type Specialty Salt
  • Appearance Pale yellow powder
  • Dosage 0.5-2%
  • Oil Absorption 15-20 g/100g
  • pH Value 7-8.5
  • 45µm Sieve Residue ≤0.5%
Key Features: Specially formulated for white paints used in light anti-corrosion steel structures.

JP-B801

  • Type Chrome Yellow
  • Appearance Yellow powder
  • Dosage 0.5-2%
  • Oil Absorption 22.0-28.0 g/100g
  • pH Value 7-8.5
  • 45µm Sieve Residue ≤0.5%
Key Features: Industry-standard product with high purity.

Orthophosphate Series

Target Applications: Universal systems, high-purity requirements, improved adhesion and resin compatibility.

JP-B906

  • Type Zinc Phosphate
  • Appearance White powder
  • Dosage 5-8%
  • Oil Absorption 30-45 g/100g
  • pH Value 5.5-7
  • 45µm Sieve Residue 0.3%
Key Features: Universally compatible across all systems; significantly enhances salt spray resistance.

JP-B902

  • Type Zinc Aluminum Silicate
  • Appearance White powder
  • Dosage 5-20%
  • Oil Absorption 15-30 g/100g
  • pH Value 7-8.5
  • 45µm Sieve Residue 0.3%
Key Features: Minimal impact on paint film gloss; highly versatile and cost-effective.

JP-B620

  • Type Org. Mod. Zinc Orthophosphate
  • Appearance White powder
  • Dosage 5-10%
  • Oil Absorption 15-30 g/100g
  • pH Value 6.5-8
  • 45µm Sieve Residue ≤0.3%
Key Features: Excellent dispersion; improves adhesion; enhances compatibility with resins.

JP-B600

  • Type High-Purity Zinc Phosphate
  • Appearance White powder
  • Dosage 5-12%
  • Oil Absorption 20-40 g/100g
  • pH Value 6-8
  • 45µm Sieve Residue 0.3%
Key Features: High active content; superior performance; standard high-purity grade.

Inorganic High-Efficiency Corrosion Inhibitors

Target Applications: Water resistance improvement, flash-rust suppression, blister resistance in thin films.

JP-B803

  • Type Corrosion Inhibitor
  • Appearance White powder
  • Dosage 0.5-2%
  • Oil Absorption 60-90 g/100g
  • pH Value 6-8
Key Features: Enhances water resistance; effectively suppresses flash rusting; boosts salt spray performance.

JP-B805

  • Type Corrosion Inhibitor
  • Appearance White powder
  • Dosage 2-8%
  • Oil Absorption 40-60 g/100g
  • pH Value 8-10
Key Features: Zinc-free and phosphorus-free; ideal for thin coatings; effectively improves blister resistance.

Polyphosphate Series

Target Applications: 2K epoxy systems, thin-film applications, premium imported product substitution.

JP-B900

  • Type Zinc Molybdate Phosphate
  • Appearance White powder
  • Dosage 3-8%
  • Oil Absorption 30-50 g/100g
Key Features: Exceptional performance in 2K epoxy and thin-film systems.

JP-8800

  • Type High-Purity Al Tripolyphosphate
  • Appearance White powder
  • Dosage 5-12%
  • Oil Absorption 30-50 g/100g
Key Features: High active content; superior anti-corrosion performance.

Zinc-Free & Phosphorus-Free Ca-SiO₂ Ion-Exchange

Target Applications: Eco-friendly requirements, coil coatings, thin-film applications.

JP-B814

  • Type Ion-Exchange Pigment
  • Dosage 2-8%
  • Oil Absorption 50-70 g/100g
Key Features: Highly recommended for thin coatings and coil coating systems.

JP-B812

  • Type Ion-Exchange Pigment
  • Dosage 2-8%
  • Oil Absorption 70-90 g/100g
Key Features: Ideal for thin-film applications and coil coatings.

Liquid Salt-Spray Resistance Additives

Target Applications: Multi-metal substrates, flash rust prevention, long-term salt spray resistance.

JP-R528

  • Type Liquid Additive
  • Dosage 0.5-2.0%
  • Solubility Easily soluble in water
Key Features: Suitable for iron-based substrates including carbon steel and cast iron.

JP-R523

  • Type Liquid Additive
  • Dosage 1-2%
  • Solubility Easily soluble in water
Key Features: Specifically designed for galvanized steel, zinc alloys, and magnesium alloys.

Epoxy Zinc-Rich System Enhancers

Target Applications: Zinc powder replacement, heavy-duty epoxy primers.

JP-B500

  • Type Ferrotitanium Powder
  • Dosage 10-50%
  • Particle Size 500, 800 Mesh
Key Features: Designed to partially or completely replace zinc powder in formulations.

JP-B200

  • Type Micaceous Iron Oxide
  • Dosage 10-20%
  • Particle Size 325, 500 Mesh
Key Features: Lamellar structure; formulated for epoxy micaceous iron oxide intermediate coatings.

Q1: Which pigment is best for replacing chrome yellow in high-gloss finishes?

A: JP-8018 and JP-B808 are the premier choices for chrome-free high-gloss coatings. These Molybdate and Zinc Phosphate formulations comply with heavy metal standards while maintaining vibrant color and superior substrate adhesion.

Q2: How can I improve salt spray resistance in thin-film 2K epoxy systems?

A: Utilizing JP-B900 (Zinc Molybdate Phosphate) is highly recommended for 2K epoxy systems. Its unique high-purity composition (related to SiO2 content 99.8% standards in auxiliary fillers) ensures exceptional barrier protection and blister resistance in films as thin as 20-40 microns.

Q3: What are the benefits of using ion-exchange pigments in coil coatings?

A: JP-B814 and JP-B812 ion-exchange pigments provide non-toxic, zinc-free protection specifically for thin-film coil coatings. They work by exchanging calcium ions with corrosive protons, creating a protective layer that outperforms traditional fillers in harsh environmental tests.

Q4: Can I reduce the cost of epoxy zinc-rich primers without losing performance?

A: Yes, by incorporating JP-B500 Ferrotitanium powder, you can partially or completely replace expensive zinc powder. This gray powder offers low oil absorption and excellent electrical conductivity, maintaining the cathodic protection required for heavy-duty industrial anti-corrosion.

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