Hot insulation with zinc rich epoxy alone

[nyfi]

Can Zinc rich epoxy alone be used under hot insulation temperature range 60-80degree?

 

[moltenmetal]

Epoxies will withstand continuous exposure to 60-80 C, and the addition of Zn won't change that. Yes, you can insulate lines coated with Zn rich epoxy if your service temperature will only be 60-80 C.

 

[nyfi]

Thanks Moltenmetal,
But isn't zinc prone to formation of rusting under insulation when moisture ingress.
I would appreciate your response.

Thanks.

 

[nyfi]

What if temperature is up to 120 degree continous.

 

[moltenmetal]

120 C is marginal for an ordinary epoxy. It will be more protective than no coating, but not as protective as if it were operating cooler.

 

[SJones]

Consult NACE SP0198 for guidance.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.