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AS-440S

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Silicone-Based Defoamer

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AS-440S

Anti-settling additive for stable pigment suspension in solvent-based systems

Product Overview

AS-440S is a high-performance anti-settling agent for solvent-based alkyd paints and printing inks. It helps reduce sedimentation, improve pigment suspension, and support easier redispersion while maintaining consistent viscosity, color strength, and storage stability.

Key Features & Benefits

  • Reduces heavy settling and sedimentation
  • Suitable for solvent-based alkyd paints and inks
  • Improves pigment suspension stability
  • Enhances ease of redispersion after storage
  • Maintains consistent viscosity and color strength
  • Compatible with common solvent-based resins

Technical Specifications

Appearance
Pale to dark yellow liquid
Active Content
N.A
Recommended Dosage
0.6 – 1.5% (on powder content) / 0.3 – 0.6% (on total system)
Shelf Life
N.A
pH Range
7 ± 0.5
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Industries We Serve

Proven performance across diverse  applications and industries

Specific Applications:

Specific Applications:

Specific Applications:

Specific Applications:

Specific Applications:

Specific Applications:

Usage Guidelines

Addition Stage

Introduce during the dispersion or grinding phase for optimal results.

Dosage Range

Typically used between 0.15–0.6% depending on formulation complexity.

Optimization Note

Pilot trials are recommended to achieve the best balance of dispersion and rheology.

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  • Product FAQs

Frequently Asked Questions

Common Answers about Your Question
AS-440S is used to reduce heavy settling and sedimentation in paint systems. It helps keep pigments and fillers better suspended during storage and improves product consistency.
In high PVC paints, heavy pigments and fillers can settle at the bottom over time. AS-440S helps to reduce this problem and makes the settled portion easier to disperse again.
Yes, AS-440S is made to reduce hard settling and support softer, more manageable settling. This helps users to avoid tough bottom deposits that are hard to mix back.
The usual dosage is 0.6 to 1.5% based on powder content or 0.3 to 0.6% on the total system. Final level should be checked through product trials.
Akino Commerce supplies AS-440S for coating systems where settling control matters. It is a useful option for businesses looking for smoother storage performance and easier redispersion.

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