Wiring colour light signals to a DCC layout can be a little daunting when doing it for the first time. That's because...
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Can you get plug and play colour signals for DCC?Read more -
Is OO easier than N gauge for a beginner?Read moreOO is definitely easier for handling especially for those of us with larger hands and fingers, but otherwise there is...
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How do I paint wood grain on a model?Read morePainting wood grain on a scale model can add a realistic and detailed touch to your project. Here’s a step-by-step...
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What is a tunnel liner?Read moreA tunnel liner is a sheet of scale brickwork, often moulded for detail and constructed from plastic, used to...
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What is the best way to glue a cardboard building kit?Read moreThe best way to glue a cardboard kit like Metcalfe or Superquick is to read and follow the instructions that are...
What is zamak rot (zinc pest)?
Zamak Rot (also known as zinc pest or Mazak rot) is a problem that plagued some early diecast model parts due to impurities in the alloys used.
The impurities have the potential to corrode parts from within, resulting in alloys becoming fragile. The problem affected many chassis and wheels produced between the 1930s and 1970s. Early signs of rot include the appearance of a white powder-like substance followed by bubbling and the eventual cracking or crumbling of the alloy.
Some modellers have had success prolonging the life of affected components by soaking them in vinegar. This method appears to be most effective when rot is caught in the early stages.
Zink rot caused problems for most model manufacturers of the time but has now been mostly eradicated thanks to the use of improved raw materials and better manufacturing techniques, to the extent that genuine cases of zinc rot in the models of today are virtually unheard of.
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