Powder Comb by DeFelsko

Powder Comb by DeFelsko
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Check powder thickness with Powder Checker before curing to help insure correct cured film thickness the first time through the line. Avoid stripping and re-coating, which can cause problems with adhesion and coating integrity.


  • Ideal for set-up and quality control.
  • Works on a variety of part sizes, shapes and substrates such as metal, plastic, wood, glass, and more.
  • Easy to carry; convenient shirt pocket size.
  • Available in mils (inch) or microns (metric).


  • Broad stand-offs on both sides of teeth help keep gage perpendicular to surface when measuring.
  • Rugged aluminum construction for long gage life and static control.
  • Precision gage; manufactured to a tolerance of ± 0.0002 inch.
  • Protective leather pouch included with each gage.

Simple Operation

  • Push the Powder Checker perpendicularly into the dry powder so that the two stand-offs (end tabs) on both sides of the teeth rest firmly on the substrate. (Unit is shown full-scale on right when viewed on a 19" monitor at 1024 x 768 resolution).
  • Drag the Powder Checker along the surface of the coated part for at least 1/2 inch.
  • Remove the Powder Checker from the surface and examine the marks left in the powder. The powder thickness is between the highest numbered tooth which made a mark and has powder clinging to it, and the next highest tooth which left no mark and has no powder clinging to it. Example: The 3 and 6 mil teeth both make lines and have powder clinging to them but the 9 mil tooth does not. The uncured powder thickness is determined to be between 6 and 9 mils (see figure).
Powder Checker ModelTooth Height
Tooth 1Tooth 2Tooth 3Tooth 4
Model 13 mils6 mils9 mils12 mils
Model 210 mils15 mils20 mils25 mils
Model 320 mils30 mils40 mils50 mils
Model 475 µm150 µm225 µm300 µm
Model 5250 µm375 µm500 µm625 µm
Model 6500 µm750 µm1000 µm1250 µm