A 1Co-Co1 wheel arrangement is essentially a Co-Co wheel arrangement with an unpowered, articulated pony truck...
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What is a 1Co Co1 wheel arrangement?Read more -
What advantages do starter or gift set models offer to a novice modelmaker?Read moreStarter or gift set models are a great option for novice modelmakers for several reasons. These sets are specifically...
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What model railway gauges are available?Read moreWe often use terminology in the world of model railways interchangeably, when people ask about gauge, they are...
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-43898-p.jpg "What is Peco Streamline?")
What is Peco Streamline?Read morePeco Streamline is a range of model railway track that many modellers in the UK turn to when they want to take their...
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What is the difference between a primer and a surfacer?Read moreThere are a large number of painting products on the market, each one claiming to be ideal in a particular situation....
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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