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China R-618 Rutile Titanium Dioxide Suppliers - High Gloss, Weather Resistance, and Superior Hiding Power from Factory
R-618 is rutile titanium dioxide made by sulfate process. It has an unparalleled hiding power due to the unique hydrolysis and calcination process. Advanced, fine grinding process make the particle size distribution more uniform and higher gloss. As a result of a special surface treatment, R-618 has a better weather resistance, lower oil absorption, and better leveling property.
Application
- Can be widely used in coatings, ink, paper and other fields.
Applicable Types
- General Purpose
Technical Properties
| Technical Specifications | Standard Value |
|---|---|
| Rutile content | ≥98% |
| TiO2 content | ≥94.0% |
| Brightness | ≥95.3% |
| Tinting strength | ≥2000 |
| PH value | 6.0~8.5 |
| Oil absorption | ≤18 |
| 325 mesh sieve residue | ≤0.01% |
| Resistivity | ≥80 |
| Oil dispersion(H) | ≥6.50 |
| Volatile at 105°C | ≤0.50% |
| Inorganic coating | Zr, Al |
| Organic treatment | Yes |
Frequently Asked Questions (FAQ)
Q: What manufacturing process is used for R-618 Titanium Dioxide?
A: R-618 is a rutile titanium dioxide pigment manufactured using the sulfate process, incorporating a unique hydrolysis and calcination process.
Q: What are the primary applications of R-618?
A: R-618 is a general-purpose pigment that is widely used in coatings, inks, paper, and other related industrial applications.
Q: How does R-618 achieve its high gloss and uniform particle size?
A: It undergoes an advanced, fine grinding process that optimizes particle size distribution, resulting in higher gloss and excellent hiding power.
Q: What surface treatments are applied to R-618?
A: R-618 is treated with an inorganic coating of Zirconium (Zr) and Aluminum (Al), along with an organic surface treatment to enhance weather resistance and leveling properties.
Q: What are the key oil absorption and dispersion properties of R-618?
A: R-618 features a low oil absorption rate of ≤18 and an oil dispersion value of ≥6.50, which ensures excellent processing performance.