Polyether-Silicone Defoamer HQ-8902

Polyether-Silicone Defoamer HQ-8902

Product Introduction:

HQ-8902 is an emulsion defoamer compounded with polyether siloxane copolymer and fumed silica, featuring unique self-emulsifying property. It is a high-efficiency defoamer with balanced performance and wide applicability, perfectly combining outstanding compatibility and powerful defoaming capacity, making it an ideal solution to foam problems in medium and low viscosity water-based systems. It integrates the advantages of silicone and polyether defoamers, delivering excellent performance in water-based systems and rapid foam elimination in solvent-based systems. It provides long-lasting foam suppression over a wide temperature and pH range without delamination or demulsification.

Application Fields:

Water-based wood coatings, industrial coatings, architectural coatings, printing inks, varnishes, cutting fluids, grinding fluids, leather coatings, etc.

Usage & Dosage:

The dosage ranges from 0.2% to 1%. Stir or shake thoroughly before use. It can be added at grinding stage or paint mixing stage, pre-diluted with about 10 times of water or organic solvents.

Details

Physical & Chemical Indexes:


Appearance: White opaque liquid

Chemical Composition: Polyether siloxane copolymer containing fumed silica

Active Content: 25%±2

Specific Gravity (25℃): 0.98–1.08 g/mL

pH Value: 7–9

Solvent: Solvent-free

 

Performance Features:

High-efficiency defoaming and foam suppression: Instant foam breaking with long-lasting anti-foam effect, maintaining stable performance even at low dosage.

Excellent compatibility: Compatible with various systems, especially suitable for clear coat and pigmented paint formulations; hardly causes craters or other surface defects.

Wide weather resistance: High temperature resistance (over 200℃), acid & alkali resistance and inorganic salt resistance; stable and effective within a broad pH range of 2–13.

Eco-friendly & safe: Non-toxic, biologically inert, non-flammable and non-explosive, compliant with environmental standards, applicable to food and pharmaceutical industries.

Easy dispersibility: Readily emulsifiable in water for convenient application; expected effects can be achieved with a small addition amount.


Packaging, Storage & Transportation:

Packed in 25 KG / 180 KG plastic drums. The shelf life is 24 months from the production date when stored in unopened original containers at 5℃–35℃.


Note: All data and information above are for reference only and shall not constitute any legally binding warranty or representation of our company. All data are empirical results obtained from laboratory tests. Users shall independently confirm the optimal formula, production process and control standards to meet the consistency and quality requirements of your finished products.

Feedback

  • captcha