Originally Posted by Jelly
I tried to use my old pot of whip it yesterday and it had gone a bit gloopy, talked to the manufacturers and was told to use Acetone to thin it down.
I was also told that it was that same stuff as their liquid insulation tape just a different label.
Don't know about Star Brite in particular, but over here, the dip-type rope whipping stuff, liquid electrical tape, and a couple of other products that escape me at the moment are all the same stuff. It seems to me that they're all a sort of thin, high-volatile content rubber-based adhesive (think thinned out contact cement.)
Take a look at the label: There should be a warning about the solvent used ("Caution: Contains Acetone - high flammability" etc.) Thin it out with whatever it has as the main solvent.
BTW, you're lucky. I looked at my old bottle of liquid electrical tape, and found it just a thin dry rubber layer on the inside of the jar.