There are many types of glue available to modellers, all of which are good at adhering to different materials. But...
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How do I glue photoetch parts?Read more -
What tools are especially useful at holding model assemblies together whilst adhesives set?Read moreSeveral tools are especially useful for holding model assemblies together while adhesives set:Clamps: Clamps are...
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How tall does my bridge need to be in OO gauge?Read moreIf you are thinking of installing a bridge over your track on a model railway, how high should it be?You may...
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What scale is HOe?Read moreHOe is a scale used by modellers in mainland Europe to construct layouts portraying a narrow-gauge railway with a...
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What are greeblies?Read moreIn the world of scale modelling, greeblies (or "greebles") refer to small, intricate details you add to your models...
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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