Anovak,
First, sorry my calc for ounces of 15-S-9 per gal is incorrect, its about 1 ounce per gal. I was in a hurry and rushing out and could not remember if a gal was 64 or 128 ounces, but it would about 30 ml for a gal that is 3.78 liters.
The IPA which is completely miscible with water, at the specified concentration would not make the 15-S-3 soluble. There is absolutely no technical reason to add both 15-S-9 and 15-S-3, they are intended for entirely different chemistries. The IPA may improve the "solvency" the ability to dissolve oils/greases, but this would be more inclined to heavy duty metal cleaning. There is a pretty powerful water soluble solvent known as 2-Butoxyethanol that is common in heavy duty cleaners. But its not really warranted here, and at high enough concentration can damage the vinyl (extracts the plastizer), easily recognized as a dulling of the vinyl finish.
I would try with only a 0.5 to 1.0% concentration, leaving out the IPA and the Hepastat. This would be the absolutely safest chemistry to you and the vinyl. If you have some really grungy records, do a pre-clean step to remove the visible contamination - put a label protector on, and pre-clean with a soft brush and the 1% 15-S-9 solution, rinse under flowing fresh water (i.e., kitchen sink), or use a vacuum record cleaning machine and then put in the UT for the final clean. The DOW literature shows that a 1% concentration of 15-S-9 will reduce the water surface tension from 72 down to about 30, so the solution will wet the record nicely, and may drain off fast enough to avoid need for a separate rinse. After the UT clean step, if you can, a quick spin of the record(s) in air should leave the record(s) near dry. And, with the record heated to about 100-125 deg F from the UT process, it will dry completely very quickly.
First, sorry my calc for ounces of 15-S-9 per gal is incorrect, its about 1 ounce per gal. I was in a hurry and rushing out and could not remember if a gal was 64 or 128 ounces, but it would about 30 ml for a gal that is 3.78 liters.
The IPA which is completely miscible with water, at the specified concentration would not make the 15-S-3 soluble. There is absolutely no technical reason to add both 15-S-9 and 15-S-3, they are intended for entirely different chemistries. The IPA may improve the "solvency" the ability to dissolve oils/greases, but this would be more inclined to heavy duty metal cleaning. There is a pretty powerful water soluble solvent known as 2-Butoxyethanol that is common in heavy duty cleaners. But its not really warranted here, and at high enough concentration can damage the vinyl (extracts the plastizer), easily recognized as a dulling of the vinyl finish.
I would try with only a 0.5 to 1.0% concentration, leaving out the IPA and the Hepastat. This would be the absolutely safest chemistry to you and the vinyl. If you have some really grungy records, do a pre-clean step to remove the visible contamination - put a label protector on, and pre-clean with a soft brush and the 1% 15-S-9 solution, rinse under flowing fresh water (i.e., kitchen sink), or use a vacuum record cleaning machine and then put in the UT for the final clean. The DOW literature shows that a 1% concentration of 15-S-9 will reduce the water surface tension from 72 down to about 30, so the solution will wet the record nicely, and may drain off fast enough to avoid need for a separate rinse. After the UT clean step, if you can, a quick spin of the record(s) in air should leave the record(s) near dry. And, with the record heated to about 100-125 deg F from the UT process, it will dry completely very quickly.