Combating foam in industrial lubricants especially in enclosed systems for gear and hydraulic oils poses special challenges. BYK’s line of defoamers tailor-made for oil- and water-based industrial oils can help. Most lubricant applications involve agitation trapping air in the oil which can lead to the formation of foam. Foam can not only create a mess and a safety hazard if it spills out onto the floor, but it can lead to poor performance. Because foam does not pump or circulate, it reduces the overall effectiveness of a lubricant. This can result in overheating, accelerated wear, oxidation, and overall failure of a gear or hydraulic oil.
BYK solves these problem with their series of PFAS-free defoamers specifically for oil based industrial lubricants; BYK-9730, based on polymer and silicone, is a versatile defoamer for all commonly used base oils; BYK-9731, a silicone free polymeric defoamer for certain systems; BYK-9732, a cost-effective silicone defoamer for certain systems where transparency isn’t critical; and their newest product, BYK-9740, the first defoamer in BYK’s portfolio specifically designed for water-based metalworking fluids.
Foam Tester According to ASTM D 892
Significant reduction in foam height with BYK-9731
BYK-9730 – based on polymer and silicone
Foam test according to ASTM D892 – results in different base oils and dosages
BYK-9732 – silicone-based
Foam test according to ASTM D892 – results in different base oils and dosages
Compatibility in different base stocks including PAO
BYK-9730 – based on polymer and silicone
Comparable defoaming performance to market standard
BYK-9730, BYK-9731 and BYK-9732
Summary
In summary BYK’s line of industrial oil defoamers offer:
- Good defoaming in typically used base oils
- Good starting dosage: 0.01% – 0.1%
- Good storage stability – no separation, no precipitation
- All defoamers are particle free – no filter plugging
- Focus on industrial fluids
About BYK: BYK has been a leading global supplier of specialty chemicals for almost 150 years. The company’s innovative additives and differentiated solutions optimize product and material properties as well as production and application processes.