Defoamers for Agrochemical Formulations

Foam Control Challenges in Agrochemical Production

Foam formation is a persistent issue in agrochemical formulation and production, especially in systems such as suspension concentrates (SC), emulsifiable concentrates (EC), and water-based pesticide formulations.During mixing, grinding, and filling processes, excessive foam can lead to:

• Reduced mixing efficiency and longer processing time
• Overflow and production instability during scale-up
• Inaccurate filling volumes in packaging lines
• Poor wetting and dispersion behavior in downstream applications
• Instability in high-shear milling systems

In addition, in spray applications, foam can negatively impact tank mixing efficiency and field application consistency.

For these reasons, reliable foam control is a critical requirement in modern agrochemical formulation design.

Three Silicone Defoamers, Three Job-Fit Options

Our defoamer range is developed specifically for crop protection systems, with a focus on low dosage efficiency, formulation compatibility, and long-lasting foam suppression.The portfolio covers both transparent water-based systems and high-solid SC manufacturing processes.

SQ-SF 102--Silicone Defoamer for Transparent Agrochemical Systems

SQ-SF 102 is designed for low-viscosity, transparent pesticide formulations where clarity and compatibility are critical.

Key advantages:

• Effective at low dosage (~200 ppm)
• Long-lasting foam suppression performance
• Excellent compatibility in water-based systems
• Suitable for transparent SC / SL formulations
• Helps improve filling and processing stability

Best suited for: Transparent formulations, water-based pesticides, and low-foam spray concentrates.

SQ-SF 30E--Emulsion Defoamer for Suspension Concentrates (SC)

SQ-SF 30E is a 30% active silicone emulsion developed for suspension concentrate systems and high-shear manufacturing environments.

Key advantages:

• Fast foam knockdown during production
• Stable emulsion structure in SC systems
• Good compatibility with common agrochemical formulations
• Reliable performance under high shear conditions
• Balanced cost-performance profile

Best suited for: SC formulations, WG processing, and general crop protection manufacturing.

SQ-SF 50E--High-Solids Defoamer for Industrial-Scale Production

SQ-SF 50E is a higher active-content version designed for large-scale agrochemical production where logistics and cost efficiency are important.

Key advantages:

• Higher active content for reduced transport cost
• Comparable foam control performance to 30E
• Suitable for bulk manufacturing operations
• Efficient dosing in large-scale systems

Best suited for: High-volume production and cost-sensitive industrial formulations.

Quick Selection Guide

SQ-SF 102 → Transparent systems, low-viscosity formulations

SQ-SF 30E → Standard SC and general agrochemical systems

SQ-SF 50E → Large-scale production and cost-optimized systems

Beyond Defoamers: A Full Adjuvant Portfolio

In addition to defoamers, we also offer a complete range of formulation adjuvants for crop protection systems.

Technical Support for Formulators

We support agrochemical manufacturers with formulation optimization, including:

• Foam control in SC and EC systems
• Wetting and spreading performance tuning
• Dispersion and viscosity optimization
• Tank mix compatibility evaluation
• Application-specific product selection

Samples and technical data are available for formulation testing and evaluation.

Click here to view more information about agrochemical adjuvants.

Contact E-mail：sales@sqmaterials.com

Contact Phone：+86 20 3180 1834