After reading and re-reading several posts about DIY record cleaning solutions (and doing some test runs), I (hopefully) have some proportions that can be shared and used as a reference. Most of my research has been reading posts made by @vince1, so thanks to him for his patience and sharing his knowledge with this group. I have gotten his permission to use his suggestions in this post.
*Triton X-100 (standard grade...I don't know how many grades exist)
*Hepastat256 (this is the 'Quat', and this product's concentration is what works for my proportions)
*99% Isopropyl alcohol
I have a Knosti Disco Anti-stat, and the tank holds about 500ml. I use a large Pyrex measuring cup to mix the solution; the measuring cup is graduated for 500ml / 16 fluid oz / 1 Pint / 2 Cups. A smaller measuring cup of about 2 fluid oz / 50-75ml is also needed. And finally, a pipette of 2ml is needed - available at hobby stores and elsewhere.
In the big measuring cup, add the following:
- 25ml of isopropyl alcohol; measure using the smaller cup, and then pour into the large measuring cup.
- 0.75ml of Triton using the pipette; it dissolves quicker in the alcohol than in water, so that's why we add it here; stir it around a bit. Rinse the pipette inside and out - suck water into it and squeeze out several times.
- 0.25ml of Hepastat256. Rinse the pipette again and then set it aside for the next time you need to make a batch.
- Fill the rest of the measuring cup to 500ml with distilled water, and stir.
This yields a solution of 5% isopropyl alcohol, 0.15% Triton X-100, and 0.05% Quat, which appears to be a good concentration for record cleaners like the Knosti, Spin Clean, and others of that design. For an ultrasonic cleaner, use less Triton (0.25ml), so the same amount as the Quat...again this would be for a 500ml batch of cleaning solution. These are percentages vince1 has recommended. Obviously for a liter (1000ml) of solution, you would double everything.
If you want to make a gallon, you can basically X8 everything...ok, really more like X7.5. For those who are mathematically challenged, here are the proportions for making a gallon (you can round up if easier):
- 187.5ml Isopropyl (that's about 6.3 fl oz)
- 5.6ml Triton (too small to convert to fl oz...just use the pipette and keep track of how much you've added)
- 1.9ml Hepastat256
To mix, first pour off about a cup (8 fl oz), or a little more, of distilled water from a gallon jug into a container, and set it aside. This will be the top-off water when ready. Now in a big measuring cup, add the isopropyl alcohol and Triton. Stir to dissolve. Add the Hepastat. Pour this mixture back into the gallon jug, cap and shake to mix. Remove the cap, and top-off the jug with as much water as necessary from what you set aside earlier. It won't take much since you've basically replaced about 8 oz of water with 6.5 oz of cleaning compounds.
If you decide to buy the ingredients and make this, you will quickly find that Hepastat256 comes in bottle sizes of like 64oz and up...you may get lucky and find a 32oz bottle. Using such small amounts of the concentrate per batch of record cleaner, these big bottles of Hepastat would last 5 lifetimes of record cleaning! Luckily, Hepastat256 has another household use as a disinfectant cleaner. It is used in hospitals and restaurants for this purpose. In a 16oz spray bottle, 2ml of Hepastat mixed with water is a good disinfectant cleaner (4ml for a 32oz bottle). It kills a host of bacteria and germs, and is easier/safer than bleach cleaners...although it won't whiten like bleach.
But back to the record cleaning, I rinse the vinyl under running tap water after its bath in the solution, and then let it dry. I have a small fan blowing across my drying rack. After cleaning one batch of records (9 per batch for me), I pour the cleaning solution into a Mason jar and screw the cap on (to control evaporation). After rinsing the tub until there are no suds, I then fill it with distilled water for a rinse cycle of the records. I have found that I can safely use the cleaning solution a second time without much contamination - thus the Mason jar - same for the distilled water rinse - it can be used again as well. For the larger beads of water left on the vinyl after several minutes of drying, I use a waffle-pattern microfiber towel to gently dab/wipe those beads away.
I hope this is helpful, and thanks again to vince1 for his expertise.