Anti-Corrosive Pigments Used In Primers Giving Resistance To Corrosion Of Steel
Property: White solid powder
Main Components: Modified Silicon Dioxide
Main Features:
SIlica Ion Exchange flake is commonly used as an anti-corrosive pigment and acts as an anti-corrosive by producing a circuitous pathway for water and ions around the lamellar flakes, as well as absorbing oxygen to give aluminum oxides, which block pores in the coating. Where the aluminum is in contact with steel, a limited cathodic protection mechanism will also operate, although when used on tankers and product carriers, the aluminum content in the dry film should not exceed 10 percent to avoid possible spark hazards where flammable gases build up.
Rust-proof Mechanism:
Chemical anti-rust: Modified phosphate zinc molybdate and organic nitrogen-modified zinc salt which has a sustained release effect undergo a complexation reaction with the substrate surface, forming insoluble passive film and inhibiting corrosion to metal base like steels from the environment.
Main Applications:
This chapter covers the major types of coatings that are currently available for use and includes general information on the composition of coatings. It is intended to give basic information on coatings and is not a comprehensive guide to anti-corrosion coatings selection. The coating manufacturer is to be consulted if information on a specific product or coatings suitable for particular areas are required.
Usage: Add the product after emulsion systems are beaten, and grind the product after other systems areadded.
Suggested dosage:
It is suggested to use between 5%~10%.
Technical
| Items | Specifications |
| SiO2 Content (based on Ignited Substance, %) | 99 |
| Porosity (ml/g)≥ | 0.3-0.5 |
| Oil Absorption (DBP, g/100g) | 70-120 |
| Particle Size Laser diffraction, d50(μm) | 2.7-3.2 |
| Loss on drying (105℃ %≤) | <5 |
| Loss on Ignition (1000℃%≤) | <10 |
| Whiteness %≥ | 95 |
| PH Value (5% in water) | 5.5-7.5 |
