Wet Plate Collodion questions answered here.

[Mark Sawyer]

Rock the plate as you drain the collodion off, so it doesn't all flow in the same direction. The phenomenon is called "corduroy lines".

[AlexGard]

If you’re making Old Reliable but omitting the additional Ether, then the Collodion is too thick and will not flow correctly. Why omit the Ether from the recipe??

Quite the opposite. The collodion is super watery. I noticed when mixing it the merck collodion is a lot more of a watery consistency than the scharlau collodion I usually get.

I can only get denatured ethanol. I have tried mixing old reliable with ether and denatured in the past and there seemed to be some clash between denatured and ether.

Etherless old reliable has never been an issue for me in the past.

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[Andros-zz]

Hello, friends and colleagues!
Please tell me why a white coating may appear on the surface of the plate after drying, which can be wiped off with cotton wool. I read that this happens from fresh collodion, from excessive alkalinity or acidity of the silver solution, from elevated temperature, or from a contaminated silver bath. I gradually changed all the parameters, but the white coating still appears. Please advise what else can be done to improve the situation.