ANJEKA-7422 Wetting Agent for Water-Based Systems

Product Overview

Anjeka-7422 is a silicone surfactant developed for water-based coatings, printing inks, and overprint varnishes. It delivers strong surface tension reduction and significantly improves substrate wetting performance, making it an effective solution for preventing craters, fisheyes, and poor spreading on challenging surfaces.

With 100% active content and broad compatibility across water-based formulations, Anjeka-7422 is designed to be a reliable, foundational wetting agent in your coating and ink recipes.

Key Benefits

Strong Surface Tension Reduction
Anjeka-7422 effectively lowers the surface tension of water-based systems, enabling coatings and inks to spread evenly and wet substrates that would otherwise be difficult to coat — including surfaces with low surface energy or minor contamination.

Reliable Substrate Wetting
Improved wetting at the substrate interface reduces the risk of crater and fisheye formation. Coatings adhere and spread more uniformly, resulting in smoother, more consistent film appearance.

No Impact on Recoatability
The additive does not compromise interlayer adhesion, making it safe to use in systems where multiple coats or recoating is required.

No Excessive Surface Slip
Unlike some silicone additives, Anjeka-7422 does not add excessive slip to the coating surface. This makes it suitable for systems that will be printed, laminated, or require a specific surface feel.

Good Compatibility with Fumed Silica
The additive wets fumed silica (pyrogenic silica) effectively, supporting stable incorporation of this common filler without causing dispersion issues or viscosity problems.

Minimal Foam Stabilization
Anjeka-7422 has little to no foam-stabilizing effect, reducing the risk of air entrapment during mixing, pumping, or application.

Application Areas

Anjeka-7422 is recommended for all water-based coatings, printing inks, and overprint varnishes where strong wetting and leveling performance is required.

Common applications include:

• Industrial water-based coatings
• Printing inks and varnishes
• Overprint coatings
• Any water-based system requiring improved substrate wetting

Special suitability:

• Systems with low-surface-energy or lightly contaminated substrates
• Formulations where excessive slip must be avoided
• Recipes containing fumed silica or similar fillers

Recommended Dosage

These are empirical starting guidelines. Optimal dosage varies by substrate type, formulation composition, and performance requirements. A series of tests is recommended to determine the best level for your specific application.

How to Add

Anjeka-7422 can be added at any stage of the production process. For best results, add during the final letdown stage of the coating or ink and disperse thoroughly to ensure uniform distribution throughout the system.

Important Formulation Notes

Co-solvent requirement: Formulations using Anjeka-7422 should contain approximately 5% co-solvent relative to total solvent content. This ensures proper performance and helps avoid haziness in the final system.

High co-solvent systems: In formulations with very high co-solvent levels, the effectiveness of the silicone surfactant may be reduced. For such systems, Anjeka-7333 is recommended as an alternative.

pH range: Anjeka-7422 demonstrates long-term stability in coating systems with pH between 4 and 10.

Slip requirements: If higher surface slip is needed in addition to the wetting performance of Anjeka-7422, Anjeka-7333 can be added separately to achieve the desired surface feel.

Technical Data

Note: Values shown are typical and do not constitute specification limits.

Storage and Handling

Below 5 degrees C, layering or turbidity may occur. This is normal and does not affect product quality. Simply heat to 20 degrees C and mix thoroughly before use. Performance is fully restored after proper heating and stirring.

Recommended storage period: do not exceed 12 months from date of manufacture.

Frequently Asked Questions

Q: What is the main difference between Anjeka-7422 and Anjeka-7423?
Both products are silicone surfactants that deliver strong surface tension reduction in water-based systems. The key difference is their pH range: Anjeka-7422 is stable and performs reliably in pH 4–10 systems, while Anjeka-7423 extends this window to pH 3–12, offering greater flexibility for specialized acid or alkaline formulations.

Q: Why does the formulation need to contain about 5% co-solvent?
The co-solvent ensures proper dispersion and effectiveness of the silicone surfactant in the water-based system. Without sufficient co-solvent, haziness may occur and the wetting performance may be reduced.

Q: Will Anjeka-7422 cause foam problems?
No. Anjeka-7422 has little to no foam-stabilizing effect, making it a safer choice for systems where air entrainment during production or application is a concern.

Q: Can it be used in systems that require printing or lamination on top?
Yes. Anjeka-7422 does not add excessive slip and does not compromise recoatability or interlayer adhesion, making it suitable for coating systems that will undergo subsequent printing, lamination, or similar processes.

Q: Can it be used alongside fumed silica?
Yes. Anjeka-7422 wets fumed silica effectively, supporting stable incorporation of this filler without causing dispersion or viscosity issues.

Q: What if I need higher surface slip in addition to wetting?
Anjeka-7422 is designed for minimal slip. If your formulation requires higher slip, you can add Anjeka-7333 separately to achieve the desired surface feel without sacrificing wetting performance.

Q: Does it affect the clarity of clear coatings?
When used with the recommended co-solvent level (approximately 5%), Anjeka-7422 maintains the transparency of clear coatings. Avoid formulations with insufficient co-solvent, as this may cause haziness.

Packaging

• 25 kg internally coated iron drum
• 180 kg ring plastic drum
• Custom packaging available for volume orders

Our Services

• Inquiry response within 24 hours
• High-quality products at competitive prices
• In-house R&D and technical support
• Professional team service from consultation to delivery
• Customized production for various packaging needs
• On-time delivery with no delays

We operate a 6,000-tonne annual capacity production base in Songzi Chemical Park, Hubei Province. Stable production ensures consistent quality and reliable supply for long-term partners.

Get Started

Contact us to request product samples, technical consultation, or a quotation. Share your formulation details and performance requirements, and we will recommend the optimal starting dosage for your specific application.

Anjeka Technology Co., Ltd.
Website: www.anjeka.net
Tel: +86 711 5117111
Fax: +86 711 3355930

Our team:

Our company:

We are building a new large-scale production base

strategically located in Hubei Province,with annual production capacity of 6000 tonnes of Interface additives project settled in Songzi chemical park in November 2022.

Benefits to our customers and collaboration partners:

• stable large-scale production, better quality control

• lower production unit cost

Collaboration Opportunities:

• contract manufacturing and OEM/ODM collaboration opportunities

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