By their nature all PCB developing/etching chemicals will be hazardous to some extent – e.g. corrosive; irritant etc.

You should always wear protective clothing (even if it’s just to stop nasty yellow splotches from the ferric chloride on your clothes) and goggles. Always read the health and safety sheets before mixing or using any of the chemicals involved.

The Rota-Spray has a safety cut off in the lid, if it is reaised during etching the motor will cut out.

By having the wash tank connected to the spray tank it reduces the risk of dripping the etchant on yourself, the floor or any surfaces.