Hey Goodluck...I think you are referring to Fray Check...you can get it at walmart in the sewing section real cheap...just use a little on your finger and spread on the very edge of your lace...the only problem with this is after a day or two...it looks like dried or peeling skin...but I just take a little alcohol and clean it up and reapply...it does hide the lace and seals good,

Goodluck what part of this don't you understand...just spread the fray chek right on the very edge of the lace on the front of your lace.