A further advantage of powder coating is utilisation of material, in theory almost all of the powder purchased may be applied onto the goods, with only minimal waste, and this is achieved by re-cycling the powder.  A good booth will have a method of capturing over-sprayed powder, which is often filtered and then mixed with virgin powder for re-use.

Powder is attracted to the product and adheres to the surface through an electrostatic charge, it is essential to protect the coating from draughts and knocks until the produce has been heated and powder has set.  It is also essential to guard against contamination between colours in a multi-colour system.

For a user with only a single colour requirement powder recovery is a very simple operation.  Where multiple colours are necessary then an evaluation is required to determine the colour mix.  There are numerous possibilities to address colour issues; it may be that one or more booths are dedicated to specific colours, with “special” colours used in a spray-to-waste booth.  Alternately there are booths specifically designed for colour-changes.

Typically then; powder booth may be designed to recover powder and maximise powder utilisation, however it may prove more cost effective to ignore recovery and simply dispose of all over-sprayed powder