Sealant / glue that can withstand heat and water??

[Bertie78]

I am working with a metal surface that has some scratches to it and I need to make it smoother (fill those scratches) with some kind of sealant that will be smooth and not come off due to temperature or water contact. I worked with a gas fitter a few years back, and I know about hawk white, but from what I remember of it that probably isn't what I need this time. Is there any other sealant or glue that would fit that bill??

 

[andytw]

Solder and cut back to flat ?

andytw

 

[matt1e]

you will find what you need at rs components I should think

 

[Bertie78]

I had Googled already and couldn't find anything that described resistance to both high temperature and damp / water. That's why I thought I'd ask here. Saves me sending e-mails to every shop I suppose.

 

[Agile]

Solder is unaffected by water ot temps up to about 250°

If higher temp needed then silver solder to about 350°

 

[hazetimesfive]

how hot is it gonna get exactly?

 

[Bertie78]

No more than 120 degrees. I am not a gas fitter, and only have a soldering iron at home. I am not even sure that would solder to a metal surface or if I could apply it so thinly that I could put enough on the metal surface just to make it level and smooth, but have no salient points on the surface.