Solid Defoamer Selection Guide and Problem-solving Solutions

1. Top 5 Customer Concerns About Solid (Powder) Defoamers

How to select the right product?

• Based on pH: Use diatomite carriers for acidic systems; silica carriers are recommended for alkaline systems.

• By temperature requirements: Standard type (<150°C), high-temperature type (150-220°C), ultra-high-temperature type (>220°C).

• Solubility considerations: Hydrophilic-modified products for water-soluble systems; hydrophobic types for oil-based systems.

Why is defoaming performance unsatisfactory?

• Possible causes:

  • Particle size mismatch (sieve testing recommended).

  • Insufficient dosage (optimal amount should be determined through small-scale testing).

  • Poor dispersion (pre-mixing process is advised).

How to control costs?

• Chemi-Tech's solid (powder) defoamer series enables low dosage (0.05-0.3%).

• Long-lasting formulations reduce the need for frequent reapplication.

• Cost-optimized formulations are available.

Does it affect product performance?

• Surface modification technology prevents gloss reduction.

• Strict control of impurities (e.g., heavy metals).

• Compatibility testing services provided.

What precautions should be taken during use?

• Storage: Moisture-proof, light-resistant, sealed.

• Addition: Recommended in batches.

• Equipment: Prevent pipeline clogging.

2. Industry Pain Point Solutions

Customer challenges:

• Difficult bubble elimination during extrusion.

• Surface defects in finished products.

• Increased costs due to frequent rework.

Our solution:

• Selected Chemi-Tech's solid (powder) defoamer.

• Adjusted addition timing (pre-mixing + pre-extrusion supplement).

• Optimized dispersion process.

Results:

• Surface defect rate reduced from 8% to 0.5%.

• Energy consumption decreased by 15%.

• Annual rework cost savings exceeded ¥500,000.