Wetting Agent in Coagulant

Manufacturer: We are in the process of improving the wetting property of our coagulant mix to overcome pinhole and thin spot problems. We would appreciate very much if you could advise us on the temperature, level of wetting agent, cloud point, etc.


John Woon (Senior Latex Consultant): You need to pay attention on the following factors:

1) Temperature of the coagulant should be as high as possible but not exceeding the could point or 65°C to achieve maximum wetting.

2) Level of wetting agent is to be high enough but not to the extent of causing foaming and retarding drying.

3) You should determine the could point on your own instead of just relying on surfactant suppliers' cloud points because salts such as calcium nitrate and other ingredients in the coagulant mix can affect the cloud point.

Details has been sent to you separately at your request.