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21 Stud block question
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08-05-2021, 02:30 AM
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frnkeore
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Join Date: Jul 2019
Location: Southern Oregon
Posts: 782
Re: 21 Stud block question
Caustic Soda (Sodium Hydroxide) is what is used in "hot tanks". But, it doesn't dissolve rust. It may loosen rust though.
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