How to: Clean Eudragit with Solujet in CSP Tank

Q. What is the correct temperature needed to successfully clean Eudragit L 100-55 with Solujet in a CSP tank (Solution Preparation Tank)?

A. It is recommended to clean with 1% Solujet at 40 deg C for 20 minutes.

However, if only normal temperature (20 deg C) water is available, then theoretically it will take 4 times longer because every 10 deg C you go down in temperature doubles the cleaning time needed.

If at all possible, it is preferred that cleaning be done with 40 deg C solutions. It is certainly worth trying to clean longer if using hotter solution is not possible. Raising the concentration of Solujet to 2% might help a little bit, but it should not be required.

For more information, or to request a sample of Solujet detergent, visit www.alconox.com