Hazing, Low Gloss

Appearance

Dull, low reflective appearance of coating.

Probable Causes

  1. Film of material such as PTFE that rises to the surface (does not harm performance), low cure temperature/time.
  2. Presence of moisture (humidity) during coating, leaving a rough, low-gloss surface.
  3. Oven fouling. Low film thickness or rough substrate.

Suggested Solutions

  1. Rapid cooldown may improve gloss, increasing cure temperature/time may eliminate hazing. Check oven, substrate.
  2. Check water traps for moisture. Check DFT.


 
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Common Coating Problems

Hazing, Low Gloss

Hazing, Low Gloss - Common Coating Problems

Appearance

Dull, low reflective appearance of coating.

Probable Causes

  1. Film of material such as PTFE that rises to the surface (does not harm performance), low cure temperature/time.
  2. Presence of moisture (humidity) during coating, leaving a rough, low-gloss surface.
  3. Oven fouling. Low film thickness or rough substrate.

Suggested Solutions

  1. Rapid cooldown may improve gloss, increasing cure temperature/time may eliminate hazing. Check oven, substrate.
  2. Check water traps for moisture. Check DFT.



 
 
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