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topic 59041

High temperature PVC for Powder Coating



November 8, 2012

Q. Hello all,

I'm looking for a high temperature PVC powder that can withstand short term (1 min) temperatures of 1000 °F, everything I've come across will break down at short term temps over 500 °F. Has anyone ever seen anything like this?

Thanks

Andrew Liptak
- Agawam, Massachusetts, USA


November 12, 2012

A. Hi Andrew.

Why PVC instead of a higher temperature polymer?

Regards,

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


First of two simultaneous responses -- November 14, 2012

A. Silicone powder coatings withstand temperatures up to 1200 °F for a short while.

Anna Telk
- Berlin, Germany


Second of two simultaneous responses -- November 14, 2012

A. PVC will not withstand 1000 degrees!
Choose another option.
Hope this helps.
Bill

William Doherty
Trainer - Salamander Bay, Australia


November 27, 2012

thumbs up signThanks for the input so far. We currently use a polymer adhesive but it would be more economically beneficial for us to use a powder coating, rather than the 2 layer primer/polymer system we use now. I have seen TPO powders that work at these temperatures which is why I thought there may be a PVC solution out there.
I will definitely look into the silicone coatings.

Andrew Liptak
- Agawam, Massachusetts, USA


December 8, 2012

A. If you want high temperature for a short length of time you'll need a silicone polyester coating. This is what is used on things like stove pipe.

Ronald Zeeman
Coil coating - Brampton, Ontario, Canada

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