Defoamer for Oil-based Industrial Lubricants - BYK-9730 Series
BYK-9730, BYK-9731, BYK-9732, BYK-9733
Excellent defoaming properties in oily lubricants, good storage stability, particle-free – no filter clogging!
• BYK-9730: Highly versatile applications For all common base oils, without negatively affecting transparency • BYK-9731: Silicone-free, without negatively affecting transparency, especially for polyalphaolefins and ester oils • BYK-9732: Cost-effective silicone-based defoamer suitable for all common base oils • BYK-9733: Contains no solvents or silicones, does not negatively affect transparency, specifically designed for mineral oils (especially API II)
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basic information
BYK-9730: • Density (20 °C): 0.77 g/cm3 • Solvent: Aromatic-free hydrocarbon BYK-9731: • Density (20 °C): 0.76 g/cm3 • Solvent: Aromatic-free, hydrocarbon BYK-9732: • Density (20 °C): 0.76 g/cm3 • Solvent: Aromatic-free hydrocarbon BYK-9733: • Density (20 °C): 0.89 g/cm3 • Solvent-free
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Applicable system series Mineral oils API I-III Naphthenic oils API V Polyalphaolefins API IV Ester oils API V
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BYK Japan KK is engaged in the import, wholesale, and technical service of paints, additives, and measuring instruments. As a leading supplier of functional additives and testing equipment across various application fields, we provide solutions to assist you in product development and solving challenges. Please feel free to contact us if you have any inquiries.

