Why do craters, bubbles, inclusions occur in coatings ?

What does a "waxy bloom" on a plastic surface consist of ?

Which effects lead to material discolouration ?

Why does the metal show local corrosion ?

Which contaminations lead to stress-corrosion cracking in plastics ?

Why do electric contacts fail ?

Which surface contaminations reduce the activity of catalysts ?

Is the delamination of a multilayer system due to cohesive or adhesive failure ?

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