Quick Question on HX End Caps and Gaskets

[John]

Getting ready to replace a leaking end cap and gasket on 6BTA heat exchanger. I’m using the Seaboard caps and gaskets. My question is whether any material or not should be applied to edge of HX tube, gaskets, or cap. After an exhausting search on this site, came up with several responses.

1. Nothing, Seaboard gasket is soft enough.
2. A little bit of grease on gasket edges.
3. Rectoseal on gasket edges.
4. Light coat of RTV on tube edge.

What’s the proper protocol?

Topic

[Rob Schepis]

A little Rector Seal 5 is always good.

[Stephen Oliver]

I used nothing but had just overhauled the hx so end caps were very clean as was the mating face. The seaboard gaskets are very soft and work well.

Steve

[Author]

Replies