"Powder coating is an advanced method of applying a decorative and protective finish to a wide range of materials and products that are used by both industries and consumers. The powder used for the process is a mixture of finely ground particles of pigment and resin, which is sprayed onto a surface to be coated. The charged powder particles adhere to the electrically grounded surfaces until heated and fused into a smooth coating in a curing oven. The result is a uniform, durable, high-quality, and attractive finish." Most powder coating guns, apply a negative electrostatic charge to the flour-fine powder (that magical mixture of "pigment and resin"). This charge is high voltage; up to 25,000 volts (100,000 volts on industrial guns), but fortunately very low amperage (the amps are the part of electricity that can really hurt you). Since this powder is made of resins, we know that it falls in the general classification of "plastics". As a member of the plastic family we know that it is a poor conductor of electricity. So once the particle is charged, it gives up that charge very reluctantly. This is what causes the powder to "cling" to the substrate being coated. The negative ions in the particle slowly fight their way to the positively charged substrate. This slow flow of ions from particle to substrate is what holds the particle on the substrate. Putting it another way, think of the positively charged substrate as "sucking" the negative ions out of the particles, causing them to stick. ELECTRO STATIC POWDER COATING UNIT. FEATURES. 1-High volts 200KV. 2-High electro static charge. 3-Capability of REPAINT at 25 - 50 KV 4-Wide selector range (25 - 200 KV) 5-Heavy weight model for continuous use. 6-Light weight Gun. 7-Portable and easy assembling. 8-Compatibility ( gun, hopper, injector, air filter, etc