Discwasher D4+ fluid leaves no film on the record if used properly. I’ve had mine for 40 years and use it on every record I play. Wouldn’t think of playing a record without it.
Record saver fluid
A friend and I were talking about record cleaning products we used to use, and of course, Discwasher was discussed at length. Back in the 70’s, there was a product that complemented Discwasher, but was not made by Discwasher as I recall. The other product was not a cleaner, but rather a record protector. You’d first use Discwasher to clean the record, and then apply this other fluid to protect it. It came in a black plastic kit. Its cap had a blue microfiber sponge inside it. There was also a bottle of fluid that came with it. You’d spray it on the record and then wipe it in just as with the Discwasher. I can’t recall the name of the product. DiscSaver, or DiscKeeper, or something like that maybe. Anyone remember this stuff?