Proseal to seal Baffle Corners

[TASEsq]

There are many little holes in the baffle corners etc that I would like to fill, but I would prefer to fill them before I paint the baffles rather than having globs of ultra black everywhere.

Would Proseal be fine for these little spots?

Apparently:
It has a service temperature range from -65*F (-54*C) to 250*F (121*C), with intermittent excursions up to 275*F (135*C)

I’ve primed the baffles already, will rivet together, then seal these little corner holes, then topcoat. (Probably after they are fitted and the initial engine runs on the truck are complete).

Will use ultra black / ultra blue to seal the gap between the baffles and the engine itself.

Alternatively, I have some firebarrier 2000+ left over - but I don’t think this is paintable?

 

[Stoo]

I painted my baffles black and sealed them to the engine and filled any holes with ultra black. It is hard to apply the sealant neatly but black-on-black is very forgiving!
Stewart Willoughby, 6

 

[PaulvS]

There are many little holes in the baffle corners etc that I would like to fill, but I would prefer to fill them before I paint the baffles rather than having globs of ultra black everywhere.

Would Proseal be fine for these little spots?

Apparently:
It has a service temperature range from -65*F (-54*C) to 250*F (121*C), with intermittent excursions up to 275*F (135*C)

I’ve primed the baffles already, will rivet together, then seal these little corner holes, then topcoat. (Probably after they are fitted and the initial engine runs on the truck are complete).

Will use ultra black / ultra blue to seal the gap between the baffles and the engine itself.

Alternatively, I have some firebarrier 2000+ left over - but I don’t think this is paintable?

Suggestion: consider a clear sealant, e.g. Selley 401 (good for over 200++ degrees C) applied after painting the baffles. The baffles really don't get all that hot, relatively. The clear will be unobtrusive even if it is unpainted.

 

[flysrv10]

There are many little holes in the baffle corners etc that I would like to fill, but I would prefer to fill them before I paint the baffles rather than having globs of ultra black everywhere.

Would Proseal be fine for these little spots?

Apparently:
It has a service temperature range from -65*F (-54*C) to 250*F (121*C), with intermittent excursions up to 275*F (135*C)

I’ve primed the baffles already, will rivet together, then seal these little corner holes, then topcoat. (Probably after they are fitted and the initial engine runs on the truck are complete).

Will use ultra black / ultra blue to seal the gap between the baffles and the engine itself.

Alternatively, I have some firebarrier 2000+ left over - but I don’t think this is paintable?

I have some prose on my baffles. No issues.