Coating inside of compressor tank?

[djjsr]

I have a small compressor that has a 33 gallon vertical tank. It's about 2 years old and every time I drain it, the water has an orange tint to it. I guess it's just a matter of time that the rust eats a hole in the tank.

I'm thinking about coating the inside of the tank with one of the coatings used for gas tanks. Maybe not the whole thing but at least the bottom few inches. I've used Kreem and RedCoat on motorcycle tanks and I think POR-15 also has a product for gas tanks.

I can't thiink of any reason not to do it but does anyone know of something I may be missing? Do the big, high dollar compressors have coated tanks?

 

[planecrazy]

As I wait for my new compressor to arrive, I had this exact thought. Hmmm???

 

[e-tek]

The best ones certainly do have a coating, but most don't - and neither would ones more than a few years old. Having said that, there are compressors without issues that are 30 years and older, then some that rust out around the drain pipe in a few years!

The orange is due to the water condensing on the iron tank surface, but I don't think it's taking much off. If you digently drain your tank every day, you shouldn't have an issue. I'm sure there are guys on here with 30+ year old tanks - whatdysay?

Oh - as for coating it if you're rebuilding - why not? I would. I would think this will help keep "dirty" condensation out of your air lines too!

 

[kbs2244]

I would look into putting a cooler with a water trap between the pump and your tank.
That will catch most of the moisture before it gets to the tank.

 

[monte433]

http://www.caswellplating.com/aids/epoxygas.htm this is without a doubt the best sealer I have ever used, it filled a 1 1/2 inck crack in the seam of one of my cycle tanks, thats was 5 years ago and it has never givien me a problem and don't expect it to.

They also have alot of other products members here might find usefull.