Powder Coating

Selection                                       Back to Powder-Coater Home Page


The first step in the coating selection process is to define your finished product requirements. With a specification, a manufacturer can work with a coating supplier to get just the right coating formulated for their specific need.

powder coating

In selecting a thermosetting powder type from a powder coating supplier, we advise that the following thoughts be kept in focus throughout the selection process and during negotiation with suppliers.

  • The key selection factors are:
    • Demonstrated film performance
    • Demonstrated application characteristics
    • Cost performance balance

Testing of performance issues is important. For example, if the product will be used outdoors, resistance to UV light and outdoor
weatherability should be tested.

The properties of any particular powder will vary even if they are the
same chemistry. Formulators can produce materials to meet specific

This is a summary of the key properties of each generic type of thermosetting powder:

Epoxy: Tough
            Chemically resistant
            Poor exterior durability (chalking)

Hybrid: Decorative film performance similar
            to epoxies
            Some UV and overbake advantages
            Not exterior durable

Polyester Urethane: Exterior durable
                                Thin film powder coating

Polyester TGIC: Exterior durable
                         Good edge coverage
                         Thicker films are no problem

Acrylic: Excellent weatherability
             Excellent appearance
             Good-fair impact resistance

Reduce Your Powder Usage and Color Change Time‏

Powder Coater's Manual 1/98

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abrasive blasting   adhesion problems  caps and plugs

chemical cleaning  cure ovens  defects  fluidized bed

infrared oven  masking  outgassing  powder formulations

pretreatment  quality  tape  powder selection

powder vs. liquid  spray booth  spray gun  substrates

hi-temp tapes  types of powder


April 21, 2010