How to remove concrete splatter?

[skata]

I'm going to paint a machine and there's concrete splatter that's a pain to remove.
I've tried vinegar which is very slow. Muriatic acid works but is causing anything it touches to rust. Any other ideas?

 

[Birken Vogt]

Muratic acid I believe you don't want to use because it leaves behind chloride (think salt) and can lead to metal corrosion problems later.

Have you tried phosphoric acid? I think most acids will loosen cement and phosphoric is used for etching metal properly for painting anyway so we know it is not detrimental to the metal in the end.

 

[CM1995]

You might want to try this -

https://zep.com/product/zepcorporate/mud-slide-concentrate

It's made for concrete trucks and such.

 

[skata]

You might want to try this -

https://zep.com/product/zepcorporate/mud-slide-concentrate

It's made for concrete trucks and such.

That looks good. But I'd have to wait to get it. Not available locally.

 

[CM1995]

Grainger has it if you have one close by.

 

[laycobeau]

Have you tried LCR Have used it on panels and controls

 

[skata]

I ended up do the rest by hand with a scraper! Took a little while but it's done.

 

[Vetech63]

A wire wheel on a hand grinder!

 

[DMiller]

Glad I did not see Air Chisel pop up!!