Xinsheng Chemical Introduces ZP-L Zinc Phosphate for Water-Based Coatings
As the coating industry continues to develop toward water-based, environmentally conscious, and performance-oriented formulation systems, anti-corrosion pigment selection has become increasingly important for coating manufacturers. A suitable anti-rust pigment must not only provide corrosion protection, but also maintain good compatibility, color flexibility, coating stability, and appearance performance in the final formulation.
Shijiazhuang City Xinsheng Chemical Co., Ltd. has introduced ZP-L Zinc Phosphate, a modified phosphate-based anti-corrosion pigment designed for coating systems where corrosion resistance, low gloss impact, transparency, and stable storage performance are important.
ZP-L is especially suitable for water-based alkyd resin coating systems, and it can also be used in coating materials for coil coatings, color steel renovation coatings, and related industrial protective coating applications.
Product Overview
ZP-L Zinc Phosphate is a modified zinc phosphate anti-corrosion pigment. Compared with general anti-rust pigment selection, ZP-L is designed for coating systems that require corrosion protection while maintaining coating appearance and formulation flexibility.
One of the key characteristics of ZP-L is that it has low influence on gloss. In coating formulation work, gloss control is important because anti-corrosion pigments may sometimes affect the visual appearance of the coating film. ZP-L is suitable for applications where the coating manufacturer wants to maintain coating protection while reducing unwanted matting effects.
ZP-L also has a relatively low refractive index and high transparency. This makes it easier for coating manufacturers to adjust colors and combine it with other pigments when preparing coating systems in different colors.
Why ZP-L Matters for Water-Based Coatings
Water-based coatings place higher requirements on pigment compatibility and storage stability than many traditional solvent-based systems. In a waterborne formulation, the pigment must disperse properly, maintain coating consistency, support film formation, and remain stable during storage.
ZP-L can be used as a colorless anti-rust pigment in water-based coating systems. It provides good stability and supports the formulation of coatings that require both protective and decorative performance.
For coating manufacturers, this balance is important. A water-based coating may need to protect metal substrates from corrosion while also meeting requirements for color, gloss, surface appearance, and long-term storage behavior. ZP-L provides a practical pigment option for these formulation needs.
Application in Water-Based Alkyd Resin Coatings
The original application direction of ZP-L highlights its suitability for water-based alkyd resin coating systems. Water-based alkyd coatings are used in many industrial and architectural metal protection applications because they combine practical application performance with a waterborne formulation direction.
In water-based alkyd systems, ZP-L can help support anti-corrosion protection, water resistance, and coating stability. It also has good affinity with coating materials, which helps the formulation maintain proper consistency and storage stability.
Because of its transparency and low impact on gloss, ZP-L can be used in coating systems where color matching and coating appearance are important. This makes it useful for manufacturers who need to produce anti-rust coatings in different colors without sacrificing the decorative function of the coating.
Application Scope
ZP-L can be widely used in coating materials for several industrial fields, especially where water-based anti-corrosion performance and coating appearance are required.
Typical application fields include:
Water-based alkyd coatings
Water-based anti-rust coatings
Coil coatings
Color steel renovation coatings
Industrial metal protection coatings
Decorative protective coatings
Coating systems requiring color flexibility
Coatings requiring low gloss impact from anti-corrosion pigments
In these applications, the coating often needs to provide both protection and appearance. For example, color steel renovation coatings must help protect the metal surface while also improving the visual appearance of aged or renovated color steel materials. Coil coatings require consistent film performance, stable appearance, and reliable protection during forming, installation, and service.
Recommended Addition Level
For coating formulation development, the recommended addition level of ZP-L is generally 3–8%. The exact dosage should be adjusted according to the coating system, resin type, pigment volume concentration, target corrosion resistance, film thickness, dispersion process, and customer testing requirements.
In practical formulation work, coating manufacturers should test ZP-L in their own systems before mass production. Laboratory testing can help determine the most suitable addition level and ensure that the final coating meets requirements for corrosion resistance, water resistance, storage stability, gloss, color, adhesion, and application performance.
Because different coating systems vary significantly, the 3–8% range should be treated as a formulation reference rather than a fixed universal dosage.
Performance Advantages
ZP-L provides several practical advantages for coating manufacturers developing water-based anti-corrosion coatings.
First, it has low gloss impact, helping coating manufacturers maintain the desired surface appearance of the coating film.
Second, its high transparency and low refractive index support easier color adjustment. ZP-L can be combined with other pigments to prepare different coating colors, which is useful for both industrial and decorative protective coatings.
Third, ZP-L provides anti-corrosion protection in water-based coating systems. As a modified zinc phosphate anti-rust pigment, it helps support the protective function of the coating film on metal substrates.
Fourth, it supports water resistance, which is important for water-based coatings used in environments where moisture exposure may occur.
Fifth, it has good compatibility with coating materials, helping maintain proper coating consistency and formulation stability.
Sixth, ZP-L supports storage stability, which is important for coating manufacturers because finished coatings must remain stable before application.
Product Testing and Formulation Evaluation
For coating manufacturers, pigment selection should always be verified through formulation testing. ZP-L can provide a strong technical direction for water-based anti-corrosion coating systems, but actual performance depends on the complete formulation.
Testing should consider:
Resin system compatibility
Pigment dispersion performance
Coating viscosity and consistency
Gloss and color appearance
Adhesion to metal substrates
Water resistance
Anti-corrosion performance
Storage stability
Coating film formation
Application process suitability
Xinsheng Chemical recommends that customers adjust the addition level and formulation balance according to their own coating systems and testing results. This helps ensure that ZP-L delivers the desired performance in the final coating product.
Xinsheng Chemical’s Product Development Direction
The development of ZP-L reflects Xinsheng Chemical’s focus on phosphate-based anti-corrosion pigments for modern coating systems. As water-based coatings continue to expand in industrial and protective applications, coating manufacturers need anti-rust pigments that can meet both environmental formulation trends and practical performance requirements.
ZP-L provides a suitable option for coating manufacturers seeking a modified zinc phosphate pigment with low gloss impact, good transparency, water resistance, corrosion protection, and stable formulation performance.
Through continued product development and application support, Xinsheng Chemical provides customers with phosphate-based material solutions for water-based coatings, industrial protective coatings, coil coatings, color steel renovation coatings, and other metal protection systems.
Conclusion
ZP-L Zinc Phosphate is a modified phosphate-based anti-corrosion pigment designed for coating manufacturers developing water-based and industrial protective coating systems.
With low gloss impact, high transparency, good water resistance, corrosion protection, coating compatibility, and storage stability, ZP-L is especially suitable for water-based alkyd resin coatings and can also be used in coil coatings, color steel renovation coatings, and related industrial coating materials.
For coating manufacturers seeking a zinc phosphate anti-rust pigment that supports both protective performance and coating appearance, ZP-L provides a practical material option for further formulation testing and application development.