What is Brush Plating? - SIFCO Applied Surface Concepts

Electroplating 101: How Plating Metals Works

Dangerous Levels of Lead and Cadmium Found in 28 Popular Brands of Dark Chocolate Bars, Including Hershey's

So the thing is... food is toxic in the range of 1 to 100 parts per billion Lead. Chocolate is allowed to have levels as high as 600 to 800 parts per billion Lead or Cadmium if it is anticipated to be used as an ingredient in something (so the heavy metal levels will be diluted by other ingredients - in theory). The Bentonite clay industry has pushed out a false narrative that the Lead in the clay is harmless. One false "data point" they often share is that "even peaches and pears have low level

Cadmium poisoning: symptoms, diagnosis and treatment

Copy Cad & Zinc Plating Kit - Caswell Canada