Wetting Property of Coagulant

Manufacturer:

-->We are having great difficulty getting the surfactants to mix properly in the initial coagulant.

We are using GEP 70 (Calcium Nitrate Liquid), Water , Surfynol TG,  Surfynol 465 (Both from Air Products), Ca(CO3).

We are not getting good wetting which is causing voids in the latex dip (the latex is from Yulex).

Thank you for your assistance. Glad I found your blog !!

John Woon (Senior Latex and Rubber Consultant): Before blaming your coagulant mix, please carry out the simple test below to ascertain the latex itself is OK:

Dip a clean glass plate into the latex. Slowly withdrawal the plate from the latex and observe the latex coating on the plate. If the coating is even then you could proceed to look at your coagulant.

Assuming that the coagulant is in fact at fault, please replace Surfynol 465 with Teric 320. Do not use freshly prepared coagulant. It must be matured for at least 24 hours before use to ensure best wetting property during dipping.

Other technical details are in my report sent to you separately.

Hope this helps.