Light Aircraft Association

Thoroughly degrease the Al surface then only handle with clean gloves. Apply Phosphoric Acid based treatment to etch the Al and then clean off excess. If not degreased first the P will not be effective. Spray with an Epoxy Primer immediately after etching. The Al coating is there as the Alloy beneat...

Summit Glow in Sheffield can do.

I had this done a few months back and a few items had to be scrapped as they wouldnt harden. Others were too hard so they went back in the furnace and then became S514.

A few kilo will cost around £50.

I have restarted my Acrosport II build after an overseas engineering career.

Is there anyone out there who could share some details of the plumbing and wiring?

Way back l visited John Kimber who built the same type.