I am looking for a good high temperature thread sealant for use on stainless steel NPT threads over 250C to 650C, and on pressures up to 1500 psig in hydrocarbon service. Does anyone have any experience with a product that performs well under these conditions? Masters Metallic has been...
The pipes contain hydrocarbons and the pressure is up to 600# flange rating. I am hoping for someone who has had some good experience with a particular sealant since the sales literature always promises great results.
Can anyone suggest a good pipe sealant to use to seal stainless steel NPT threads in higher temperature service (over 250C)? Currently use Silver Goop with poor results. Previously used Masters Metallic but it has been banned from our company due to lead.