Without seeing the LP I can only guess, but I suspect it is mold release.
Mold release lubricates the hot LP during stamping, reducing the vinyl sticking and warping. Sometime the machine goes crazy, clogs or goes off it's setting, and applies way too much. Once this cools off and hardens, it is difficult to remove.
Unfortunately the one cleaner that works best for removing this is now banned by the EPA. It was called First, was manufactured by NItty Gritty and was Freon based. The Record Research deep cleaner may do the job, although I have not had an LP as severe as you describe to test on.
I can send you a sample bottle of the RR fluid to see if it cures the problem, but you need a vacuum type record cleaning machine to do this job. Better yet, get the dealer to replace this defective merchandise and save yourself the trouble.
Mold release lubricates the hot LP during stamping, reducing the vinyl sticking and warping. Sometime the machine goes crazy, clogs or goes off it's setting, and applies way too much. Once this cools off and hardens, it is difficult to remove.
Unfortunately the one cleaner that works best for removing this is now banned by the EPA. It was called First, was manufactured by NItty Gritty and was Freon based. The Record Research deep cleaner may do the job, although I have not had an LP as severe as you describe to test on.
I can send you a sample bottle of the RR fluid to see if it cures the problem, but you need a vacuum type record cleaning machine to do this job. Better yet, get the dealer to replace this defective merchandise and save yourself the trouble.