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GW3OQK Andrew · 4th Feb 2019, 11:56 am

Excellent job Tim.

Just taking the smooth finish off the aluminium in a caustic soda solution is good. It leaves it matt finish. (I wonder if someone will bother pointing out the hazards.)
73, Andrew

4th Feb 2019, 11:56 am	#14
GW3OQK Andrew Pentode Join Date: Apr 2011 Location: Swansea, Wales, UK. Posts: 144	Re: To paint or not to paint ? Excellent job Tim. Just taking the smooth finish off the aluminium in a caustic soda solution is good. It leaves it matt finish. (I wonder if someone will bother pointing out the hazards.) 73, Andrew