Skyco Ospho Review and How to Neutralize Before Coating

Review of my experience with Skyco Ospho, an acid-based rust converter. Also how to neutralize the dried Ospho, as you cannot safely use automotive fillers, primers or paint over it without removing the residue first. And yes, I see I typo'd "hold' and spelled it "hole" in one of the captions. Can't believe I didn't notice that.
#bodywork #squarebodychevy #oldcars

How to neutralize Ospho: (from the SPI website)
"Apply Ospho as needed and leave it on as long as you like.
When you are ready to neutralize the dry Ospho, apply one more coat of Ospho over the area to
be neutralized and let it set for 5 minutes.
Using a clean towel and water, wash off the wet Ospho like you are washing a car then dry with
a clean towel.
A dry acid film cannot be neutralized or sanded off."

Note:
I might make a follow up video about this to clarify. I still needed to do filler work on the bed at that point. I used the Ospho just to keep it from rusting over the winter, and I still needed to grind the metal and do the body work. So the Ospho was going to come off one way or another, and I only would neutralize a spot I was getting ready to work on, and kind of "in real time", meaning "when I was going to do to work right then". And as I mentioned in the video, I was going to use fiberglass fillter, which is waterproof, so no real need to have the Ospho under it. So I neutralized, ground the metal, did the filler work.
If it was finished metal, I'd say skip the Scotchbrite pad and just use a rag. That way you just neutralize the remaining acid, but leave the converted "Ospho'd" rust there. Also depends on the surface...if it was sanded or blasted beneath the Ospho, or just smooth, bare metal. If it was smooth, you'd have to put scratches in it, and in that case I'd use the Scotchbrite.
So there are variables here.