[ChemistCradle]

The white points could be Salt efflorescence. Try to isolate, and put in few drops of distillated water. If you have cristallization again, no fungi.

[ChemistCradle]

I found Germall Plus very active even at 0,2% working with clay. Its upper limit is at 0,5%, so make a try. About chelating agents and clay: depending from clay specifications they can be completely useless because the clay itself acts as chelating or exchanger. It can depend from mineralogic composition, site, and even from preconditioning process before the market.

[ChemistCradle]

Hi Guys!

At the moment the best sample “Germall First” is with 0,2%, the best sample “Germall Last” is with 0,5%. “Germall Last” solution can’t work with <0,5% in my case, but it is still the best way to avoid bubbles. Thank you so much!

Bye.

[ChemistCradle]

Thank to you all. I decided to test the “Germall Last”solution at a high concentration and “Germall First” at a lower one, but with longer time for homogenisation. I’ll keep you updated with the results.

Bye!

[ChemistCradle]

Hi Mark,thank you for your answer, this is the “Ashland” approch and has its pros, but Germall at first step makes the final product full of very stable little bubbles .

[ChemistCradle]

I can add it at the end. In the mixture clay is also added to Xantham gel. Should I add Germall as last step? Thank you very much for your help.

[ChemistCradle]

Liquid. I’m using Germall Plus Liquid.