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Pro Plating is an Endries Company specializing in specialty coatings, acrylic e-coat, barrel zinc, epoxy e-coat, powder coat, pro advantage, pro-dura clear, sandblasting, Rack Zinc and we are approved for GM specifications
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Powder Glossary

Adhesion - the firm attachment of a coating to a substrate or another coating.
Ambient Temperature - the usual, or surrounding , environmental conditions.
ASTM - American Society for Testing and Materials, the source for voluntary standards for materials, products, systems and services.
Atlas (Xenon Arc) Weather-Ometer (ASTM G 26, Method A) - an accelerated test which simulates the effects of weathering through the use of a filtered zenon arc light source.
Autoclave - a piece of equipment used to apply superheated steam under high pressure; commonly used for the sterilization of instruments in the medical field or for testing materials which will be subjected to high temperature/high pressure applications; results may vary based upon test conditions.
Back Ionization - an excessive buildup of charged powder particles during electrostatic application which limits the ability of additional powder to be deposited onto the substrate; can neutralize the electrical charge of subsequently sprayed powder particles.
Back Ionization - an excessive buildup of charged powder particles during electrostatic application which limits the ability of additional powder to be deposited onto the substrate; can neutralize the electrical charge of subsequently sprayed powder particles.
Blooming - a haze on the surface of a coating which can be easily removed.
Chalking - degradation of a coating due to UV exposure, which results in loss of color and gloss.
Compatibility - the capacity of coating powders from either different sources or of different compositions when combined and applied which yield no visible or mechanically measurable differences in the cured film or application properties.
Contrast Ratio - a value related to the hiding power of a coating which must be reported at a specific film thickness; the ratio of the reflectance of a coating is measured over black and white backgrounds at the same film thickness; the results are measured as a numerical value - in general, a 0.98 contrast ratio is visually opaque; directly related to product pigmentation; minimum film thickness with full coverage of the substrate is critical (see also Hiding Power or Opacity).
Corona Charging - same as Electrostatic Spray Method.
Corrosion - decomposition or reaction with oxygen, water, or other chemicals, when exposed to a particular environment.
Coverage (calculated) - determines the sq.ft.   /pound @ 1.0 mil; adjust accordingly for other film thicknesses.
Crosshatch Adhesion (ASTM D 3359, Method B) - determines the relative adhesion of a coating to the substrate.
Cure Schedule - the time at temperature necessary for a coating to develop specific properties.
Delamination - separation between two layers of coating, or a coating and the substrate.
Dielectric Strength - property of an insulating material where electrical breakdown occurs under specific conditions of test, expressed in volts per mil.
Disbondment or Blistering (ASTM C 550) - the effect, usually at the scribe, of blisters formed under a cured powder film.
Distinctness of Image (DOI) - the sharpness of an image reflected by a coating's surface.
Dwell Time - the length of time a part is in an oven.
Edge Coverage - the ability of a coating in its cured state to flow, build, and adhere to sharp corners, angles and edges.
Electrostatic Spray ( Corona) Method - the induction of powder particles exposed to an electrostatic field generated by a high voltage device.
Emmaqua - weathering test performed in Arizona where panels placed in a special apparatus are exposed to a brief water spray and magnified sunlight; ambient humidity is fairly low.
Etching - surface preparation of metal by a chemical process; removal of a layer of the base metal.
Faraday Cage Effect - the lack of penetration of powder particles into cavities or recessed areas of a substrate due to its configuration.
Filiform - corrosion or creep resembling a thread-like formation.
Fines - small powder particles, usually less than 10 microns.
Flexibility (ASTM D 522, Method A=mandrel, Method B=rod) - measures a coating’s bend capability over a given shape.
Flop - a characteristic of metallic coatings to change color when viewed at different angles.
Flow   - measure of self-leveling; the nature of a coating which allows it to level or spread into a smooth film of uniform thickness before hardening.
Gel Time - the interval of time at a given temperature required for a material to be transformed from a dry solid, through a liquid state, to a gel-like condition; measured in seconds at a given temperature.
Glass Plate Flow/Hot Plate Melt Flow (HPMF)/Incline Plate Flow - a measurement on an inclined surface when powder is in a molten state; usually measured in millimeters at a given temperature and angle.
Gloss (ASTM D 523) - surface reflection of directed light, measured in units; the most common angle of measurement is 60°; a 20° angle should also be considered for certain full gloss formulations and an 85° angle for low gloss products.
Hiding Power   - the extent to which a powder coating masks the color and pattern of the surface to which it is applied at a given film thickness (see also Contrast Ratio or Opacity).
Hygroscopic - the tendency of a substance to attract or absorb moisture from the air.
Humidity Resistance (ASTM D 2247, usually tested on unscribed, pretreated panels) - measures a coating’s ability to withstand exposure to 100% relative humidity at various temperatures.
Impact Fusion - the tendency of powder particles to fuse with other particles at points of impact in the application equipment during the application process.
Impact Resistance (ASTM D 2794, Direct/Reverse) - measures a coating’s ability to withstand a force; expressed in inch-pounds; results can be affected by type of substrate, film thickness, or diameter of indenter.
Infrared (IR) Cure - a method of curing powder which utilizes direct exposure to light energy in the IR region of the light spectrum.
Intercoat Adhesion - the ability of a coating to adhere to previously applied films.
Leveling - a powder's ability to flow into a smooth, uniform thickness (free from defects).
Mar Resistance - a coating’s ability to withstand contact without blemishing.
Metal Temperature - the temperature of a part at any time during the cure cycle; varies based upon mass of part and dwell time.
Out-Gassing - air or gas that escapes from the sub-surface beneath or within the coating and causes blisters, bubbles, or small holes; frequently occurs with zinc or aluminum castings or galvanized steel.
Opacity - the ability to hide the substrate at a given film thickness (see also Contrast Ratio or Hiding Power).
Overbake - the application of heat using more time and/or temperature than is required for cure which often causes the coating to become too brittle; color and gloss may be adversely affected.
Overspray - material not deposited on the part or rack.
Particle Size - the average diameter of powder particles; affects application properties.
Particle Size Distribution - the overall range of particles (from coarse to fine) resulting from the grinding process; measured in microns; varies with product.
Pencil Hardness (ASTM D 3363) - relative rating of a coating’s ability to resist scratching; measured as mar and/or gouge.
Potable - suitable for drinking.
Postformability - the ability of a cured coating to withstand severe bending without the appearance of cracks.
Pretreatment - the preparation of a part prior to the application of a coating powder in order to improve adhesion and corrosion resistance.
Primer - a coating applied to a surface to improve adhesion of a topcoat and/or improve corrosion resistance.
QUV - accelerated weathering test performed at elevated temperatures in which coated panels are exposed to regular cycles of intense UV light alternated with dark cycles where water is allowed to condense on the panels.
Reclaim - any material not deposited onto parts; usually mixed with virgin material for future applications.
Recoatability - a cured coating’s ability to accept another coat.
Reflectance - the percent of light reflected at a given wavelength; the illuminant, degree of observer and the wavelength must be specified; color (not gloss) dependent - whites will have the highest values.
Reflectivity - the reflectance of a coating at a film thickness such that any further increase in thickness will not affect the amount of light reflected.
Salt Spray Resistance (ASTM B 117) - the degree of corrosion determined at the scribe based upon a prescribed time period; should be tested with a control.
Service Temperature (continuous or intermittent) - the temperature which a finish is able to withstand for an extended period of time or number of cycles without degradation.
Shelf Life - the period of time a coating retains its application and appearance properties if stored according to the manufacturer’s recommended conditions.
South Florida Exposure (ASTM G 7) - exposure to typical heat, humidity and sunlight conditions at southern latitudes; measurements are generally the change in gloss and/or color (Delta E).
Specific Gravity - the density of a formulation relative to water.
Taber Abrasion (ASTM D 4060) - resistance to wear.
Temperature Stability - appearance and adhesion after a period of time at a prescribed temperature and film build.
Thermoplastic - a coating powder which will repeatedly melt when subjected to heat and solidify when cooled.
Thermoset - a coating powder which, when subjected to heat, undergoes an irreversible chemical reaction during the cure cycle.
Transfer Efficiency - the amount of powder attracted to the part compared to the amount of powder sprayed; measured as a percentage.
Triboelectric Spray Method - powder particles receive an electric charge through the use of frictional contact with a nonconductive material.
Ultraviolet Radiation (UV) - light energy from the UV region of the light spectrum which can break certain chemical bonds and contribute to the fading and wear of coatings.
Virgin Material - powder which has not been mixed with reclaim material.
Volatile Organic Compounds (VOC's) - carbon compounds which can undergo an atmospheric photochemical reaction, contributing to air pollution and causing ozone depletion.
Water Resistance (ASTM D 870) - a coating’s ability to withstand immersion in water at prescribed temperatures for specified time periods.
Weatherability - degradation caused by humidity, temperature, and exposure to sunlight.
Wrap - a characteristic of coating powders during electrostatic application to seek out and adhere to areas of the substrate not in the direct line of sight of the delivery system end point.
Yellowing - development of a yellow color or cast of a coating due to aging or cure variables; more evident in light colored formulations.
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705 Northway Drive - Brillion, WI 54110
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