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6/1/2002

Conditions for Teflon Coating

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Question: I was viewing PF ONLINE and had a question about the conditions for Teflon coating using electrostatic powder coating guns.

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Question:

I was viewing PF ONLINE and had a question about the conditions for Teflon coating using electrostatic powder coating guns. The information was helpful, but I have several more questions:

  1. At what temperature does the Teflon cure?
  2. What is the time in the oven?
  3. Who supplies Teflon?

Thanks for your help. R.R.

Answer:

Teflon is a thermoplastic powder coating. Thermoplastic coatings do not “cure,” they only melt and flow onto the product’s surface. The definition of thermoplastic coatings denotes that the coating will continue to melt and flow when subjected to heat even if it was allowed to cool before returning to the heat. The temperature that Teflon will melt and flow is available from the powder formulator, but it is normally between 500-750F. The time in the oven depends upon how much time it takes to heat the part to the flow point for the coating and how much flow you want to produce the desired surface smoothness. Teflon is a registered trademark of Dupont, but generic versions of this material can be found on PF ONLINE at www.pfonline.com under PTFE coatings.

 

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