and now I think I hear some veil. I used around 1.5 ml of the fluid, the program with 4 revolutions, 2 tanks, the second one with IPA. Maybe I am imagining things, will have to do further testing.
Try 1-ml and see if that removes the veiling. If not, keep in mind as
@Yeti has stated, it contains a cationic surfactant that is intended to leave some residue; to leave an anti-static coating. FYI, RCA perfected an internal anti-static for records as part of the composition in 1960 - RCA Engineer Magazine, 1960 Issue 10-11, Anti-static Phonograph Records by G. P. Humfeld
https://www.worldradiohistory.com/ARCHIVE-RCA/RCA-Engineer/1960-10-11.pdf.
Expanding upon what
@tima has said, cationic surfactants have two primary benefits - they are extremely hygroscopic and so they are effective anti-static agents. Their residue is very effective in pulling moisture from the air (generally diminishes below about 30% relative humidity) and the water layer that forms that is ionic and dissipates static. They are common in hair care products. Cationic surfactants are also very effective anti-bacterial agents that can kill many bacteria and viruses. Just about every water-based spray 'cleaner' advertised as anti-bacterial contains one or more cationic surfactants. However, cationic surfactants are not easily rinsed (which makes them good for their intended purpose); are poor cleaning agents, and they are 'generally' incompatible with anionic surfactants, and under the right proportions anionic & cationic surfactants can form a white type of paste - i.e., the infamous Kirmuss white paste is likely a similar reaction.
Anionic surfactants are the backbone of the cleaning industry. Just about every dish and laundry detergent, the 1st (and sometimes 2nd and 3rd) ingredient is an anionic surfactant. But to be effective they need to be used at relatively high concentrations often 5X to 10X that used for nonionic surfactants. Nonionic surfactants are good as emulsifiers - they hold water and oil together. They are often combined with anionic surfactants in detergents, and you will see nonionic surfactants common in cosmetics. That is how the smooth oil-based creams keep from separating, and as cleaners are very effective in removing oils. Nonionic surfactants are compatible with all surfactants.
Note that all surfactants, are hygroscopic to some degree with cationic being the most. But the residue from each can be very different. Anionic surfactants start as flakes and the residue has the consistency of bar-soap; but they go back into solution relatively easily. Most of the nonionic surfactants that we would use, start as light weight oil, dry as lightweight oil film and again go back into solution very easily. The final residue on a record surface can over years take on the consistency heavy grease from repeated layers from a spray cleaner on say a diskwasher type brush.
With this very basic snap-shot of surfactants, the likelihood of your veiling issue being attributed to an anionic & cationic surfactant residue reaction is very remote. First, you would see junk on your stylus. Second, the proportions are not right. The 1.4-L volume of the Degritter and the ultrasonics provide a lot of dilution and do not setup the conditions that Kirmuss can do when spraying a very small amount of 'cleaner' on a large surface.
FYI - when using just nonionic surfactants, as the book says, with the DG, there is risk of foam, and you are limited to how much surfactant you can add before too much foam develops. FYI - anionic surfactants produce lots of foam when agitated. This new DG Cleaner is a very complicated product, and has many features, including low-foam, and as complicated as it is, there 'may' be some compromise in using. But, to reiterate, try 1-ml and see if the problem persists.
Good Luck,
Hope this is of some help.
Take care,
Neil
