i have that red coat but im not sure how to use it, it came with the package i bought, how do i use it? and yes the emulsion in mixed, ive been using it for the past few weeks and had no problems till nowHave you been able to get any good exposures since you've mixed the emulsion? If not, make sure your emulsion is mixed correctly. Also experiment with longer exposure time.
Worst case, buy some 'red coat' which is great for patching up pinholes. I use it on a daily basis.
CCI Red Coat Water Removable Block-Out