Lundmark TSP, (not actually Tri sodium phosphate). Also depending on where you are in the Bay, a few of us have a shared cleaner we can probably help you out with in the next couple months.
I use the Red Devil brand non-phosphate TSP available on Amazon. The smallest I'd go on an ultrasonic cleaner is 3L. Advantage to the bigger units is more power.
Anyone have the chemical name of the preferred active ingredient? I'm getting a bit confused between the brand names and whether they are TSP, TSP alternative, non-phosphate TSP, or some mystery product.
Anyone have the chemical name of the preferred active ingredient? I'm getting a bit confused between the brand names and whether they are TSP, TSP alternative, non-phosphate TSP, or some mystery product.
TSP = trisodium phosphate. You may also find things with trisodium phosphate hydrate. When dissolved, the hydrate acts the same, but has less phosphate per gram.
Edit: the chemical formula is Na3PO4, and the common hydrate is a dodecahydrate, with is Na3PO4-12H2O
But you want to be careful when using the real stuff. It can disolve ASM/CPC clay chips, and tarnish or totally remove hot-stamps. Best to use the fake stuff (like Lundmark).
There are a few opinions on the forum you trust without question. When @BGinGA recommends Lundmark TSP from Amazon, its a auto-purchase, right?
I have no idea why its $22.26 for a four pound tub on Amazon, and $9.99 at the Ace Hardware 4 miles down the road, but I'll save the $12 and the wait time.