Fluoropolymer Lining, 300F
Fluoropolymer Lining, 300F
(OP)
Hello,
For an upcoming process mixer we are looking to line the vessel with a fluoropoymer. The problem is that due to heat of reaction, the operating temperature will be about 300F. Most people have declined to quote, stating that although the material can take the heat, there is problems with adhesion above about 230F. I finally found a company willing to quote, although I have not been able to speak with their chemist yet, I have been told that this coating will be good to 400F. Although I was not given all the details of the material, I have been told it is impregnated with silica to achieve the high temperature capability. I think the starting compound is E-CTFE but I am unsure. Does anyone have any thoughts on such a material? I am mainly concerned with the adhesion factor. Thanks for your assistance.
Danny B
For an upcoming process mixer we are looking to line the vessel with a fluoropoymer. The problem is that due to heat of reaction, the operating temperature will be about 300F. Most people have declined to quote, stating that although the material can take the heat, there is problems with adhesion above about 230F. I finally found a company willing to quote, although I have not been able to speak with their chemist yet, I have been told that this coating will be good to 400F. Although I was not given all the details of the material, I have been told it is impregnated with silica to achieve the high temperature capability. I think the starting compound is E-CTFE but I am unsure. Does anyone have any thoughts on such a material? I am mainly concerned with the adhesion factor. Thanks for your assistance.
Danny B





RE: Fluoropolymer Lining, 300F
There is not any memory with less satisfaction than the memory of some temptation we resisted.
- James Branch Cabell
RE: Fluoropolymer Lining, 300F
RE: Fluoropolymer Lining, 300F
I did testing on the durability and adhesion of the coatings but we were at the mercy of the coatings companies to supply the coatings so I can't advise on what was in their materials.
There is not any memory with less satisfaction than the memory of some temptation we resisted.
- James Branch Cabell
RE: Fluoropolymer Lining, 300F
Have you taken care of this issue?
I don't understand why you were given such low temperature limits; PTFE (polytetrafluoroethylene) and PFA (perfluoroalkoxy) nonstick coating formulations can have continuous use temperature of 260°C (500°F). The usual difficulty in applying is reaching high enough temperature to fuse cure the coating.
Whitford (Manufacturer of the largest, most complete line
of fluoropolymer coatings in the world): http://www.whitfordww.com
DuPont™ Teflon® Product Selection Guides:
htt
Usually, a copolymer is applied as a binder/base coat, then the pure fluoropolymer is the topcoat.
RE: Fluoropolymer Lining, 300F