Description

Zinc Silicophosphate is an inorganic compound that functions as a synergistic corrosion inhibitor and pigment. Its value lies in its ability to provide enhanced protection for metal substrates, particularly steel and aluminum, by forming a stable, passive barrier layer. This product is essential for manufacturers in the protective coatings, primers, and anti-corrosive paint industries seeking high-performance, environmentally compliant alternatives to traditional chromate-based systems.

Application

• Corrosion Inhibiting Pigment in industrial primers and protective coatings for steel structures, marine equipment, and automotive components.
• Additive in Water-Based and Solvent-Based Paints to enhance long-term durability and weatherability.
• Component in Anticorrosive Primers for bridges, pipelines, storage tanks, and other infrastructure.
• Metal Surface Treatment formulations for pre-treatment processes.
• Fire-Resistant and Intumescent Coatings, contributing to thermal stability.
• Specialty Inks and Plastics where corrosion inhibition and pigment properties are required.

Basic Information

Product Name	Zinc Silicophosphate
CAS No.	53096-49-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Zinc phosphate silicate; Zinc silicon phosphate; Silicozincphosphate; Anticorrosive pigment ZPS; Phosphosilicic acid, zinc salt; Zinc silicophosphate pigment; ZP-Silicate
EINECS	Contact for details

Quality Control

Our Zinc Silicophosphate is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including chemical composition, particle size distribution, and purity to ensure consistent performance as a corrosion inhibitor. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Complies
Assay (as Zn3(PO4)2·xSiO2)	≥ 95.0 %
Particle Size (D50)	2 - 10 µm
Oil Absorption	15 - 25 g/100g
Moisture Content	≤ 1.0 %
Water Solubility	≤ 0.5 %
pH (10% slurry)	6.0 - 8.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.