Good Ospho (phosphoric) and epoxy Test

[Art Vandelay]

Don’t know if anyone has seen this. Pretty good test and results especially for this of us without ability to blast every small part.

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[Ricko1966]

He said spi says not use acid under epoxy,I don't think that's right. I belive SPI only recommends ospho and only when directions for using it are followed completely,which is what I think that second test was. I'll look and see. Yep Ospho is the only phosphoric acid treatment,SPI recommends.

 

[Art Vandelay]

I'm looking at getting some Tamco Moncoat for axles and small parts but their Q&A says "Do not use any form of rust converters..." but if you neutralize like in video don't see why it wouldn't work.
https://tamcopaint.com/products/monocoat-1-k-direct-to-rust?variant=31399920566352#qamp-a_i1

 

[Ricko1966]

I'm looking at getting some Tamco Moncoat for axles and small parts but their Q&A says "Do not use any form of rust converters..." but if you neutralize like in video don't see why it wouldn't work.
https://tamcopaint.com/products/monocoat-1-k-direct-to-rust?variant=31399920566352#qamp-a_i1

Some of the paint over rust products use tannic acid as part of the process the tannic acid needs some iron oxide to work( anyway that's what I was told by one of the manufacturers a decade or so ago when I was researching it. I'd ask the manufacturer for more info,not us.