Vernon
I dont know what resin Rod is using or the temp of your application. The resins that are high heat resistive are
for Grey
For Rigid 10K
the 10K has a heat deflection temp of 230 deg. and 424 deg. F depending on the pressure. I dont think the temp gets that high.
Also. it looks like you could use a new gasket. Send me the dimensions (decimal inch) of the surface and openings and I can laser cut some for you.