I have an original 32 pdr which has old concrete in the barrel. I would like to use RoMix Back Set to dissolve it. Can anyone tell me if this works well? I am told it will not affect the metal--true? The 32 pdr weighs 4500# so moving it is an issue--any advice on how to apply it it get the best results??
John Maderious WBR 10223
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