Back in August of 2020 I posted an article about zamac rot. In a nutshell, what happens is that the model’s metal body starts to bubble underneath the paint. That occurs when the zamac alloy contains impurities, mainly lead, that react with the other metals. That reaction produces an intercrystalline corrosion process, with corrosion bubbles appearing inside the metal. Ambient temperature and humidity play a roll in the process, speeding up or delaying the reaction. The problem is that if the zamac alloy is contaminated with lead, the process will eventually occur, sooner or later.
Usually, you don’t see zamac rot with higher end brands, yet some manufactures are notorious for this. Franklin Mint is perhaps the most famous. And until now, I never heard of this happening to Kyosho. However, as you can see from the photos, my beloved M3 GTR has fallen victim to the problem 😭. I took it out of the cabinet a few days ago for a shoot of another model and there it was, zamac rot. So, what am I going to do about it? Nothing. There’s nothing to be done, the process will get worse and the model eventually may crumble to pieces 💀.
The only solution would be to replace it. However, a proper silver M3 GTR is really hard to come by. Minichamps offers the model in a few colors, and they’re very easy to find. Nonetheless, since BMW produced the real car only in silver, Minichamps’ models are all wrong. So unless I find a new Kyosho in good condition (very rare), or some other brand issues the car in 1:43, I can’t replace it.
Boogers 😖.
