Doesn't zinc react with the acid????
Rick N6RK
On 6/10/2023 1:05 PM, Steve, NR4M wrote:
Muriatic acid, with gloves, using a rag. It will make very short work of the Portland cement
in the concrete. It’s the stuff that is used to etch concrete floors in preparation
for painting them with paints, like a two part epoxy. Just was it well when your done. ( Rub
some baking soda on tha area to see if it’s been sufficiently neutralized )
Steve NR4M
Sent from my iPhone
On Jun 10, 2023, at 3:22 PM, Tom Hellem <tom.hellem@gmail.com> wrote:
Alex-
Try a wire brush, then touch up any damage to the galvanizing with
cold galvanizing compound. Rustoleum and many others sell it in
a spray can.
Tom
K0SN
On Sat, Jun 10, 2023 at 11:54 AM Alex Filippov <wk1ontario@gmail.com> wrote:
Hi Mates,
We made a huge error and poured the concrete for the base of LM 354 HD
without covering the galvanized legs and then did not clean it of concrete
immediately.
Now the concrete got stuck really well. We tried a pressure washer. It does
not produce a good result.
Any advice on what can be used for cleaning legs without damaging the
galvanization?
Thanks,
Alex, WK1O
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