We don't normally recommend the chrome stripper on alloys like Mazac because most people don't understand chrome and end up trying to strip the underlying nickel and destroying the Mazac.
Chrome plate is a surface treatment to nickel and can be removed in about 10 minutes, leaving behind the nickel. When the colour changes from a harsh bright shine to a softer creamier shine, then the chrome is gone. Now is the time to remove it from the stripper.
If you do it carefully and keep an eye on it, it can work.
To: Info <firstname.lastname@example.org>
Subject: Re: Chrome plating query
Ok, thanks George. Now, how do I remove the existing chrome plating? I read that your chrome stripper is not recommended for Aluminium alloys like MaZac or Zamac.
> On 26 Jun 2017, at 11:14, Info <email@example.com> wrote:
> Yes, you would need the alkaline copper http://www.classic-plating.co.uk/Alkaline_Copper_kit.html and then the replica chrome.
> George White
> -----Original Message-----
> From: David
> Sent: 26 June 2017 10:08
> To: firstname.lastname@example.org
> Subject: Chrome plating query
> I’m currently restoring a 1978 Alfa Romeo Spider which has several items (door handles etc) which are chromed Mazac castings with the usual pitting. Which rechroming kit would I need? The pitting can be sanded off, so would I need to copper plate as well?