Interior tub paint

[PaulP]

I have removed the surface rust inside my cj3a tub, what is a good way to paint it for future protection? Just a daily driver.

[oldtime]

Por 15 is an especially tough coating.
It can easily be applied with a simple paint brush yet it flows out very smooth.
The main draw back to POR 15 is that you need top coat it before it fully cures.
Top coats will not adhere well once it has cured in about 72 hours.

Otherwise a 2K epoxy primer is also a very good choice.

[squidtone]

I like masterseries "silver". It also cures with moisture, but unlike the POR15, it is not UV sensitive. It does leave brush marks though, and the silver color, is, well, very silver. But it's as tough as nails, it can be sanded sometime down the road, and if it chips, it does not let moisture get underneath it if the prep was good.
I've used it as a first coat on rusty metal, then I follow up with epoxy primer and so on if I finish coat it. Otherwise, it can be left as is.

[PaulP]

Wow, thanks for the information. I shall now get busy painting. You guys are great.

[athawk11]

I like the MasterSeries Silver too. I first used it as the base primer going on 9 years ago.� No rust development so far.� Of course our Colorado climate may give us an unfair advantage when battling rust issues.

I will add that it can be sprayed, but you must wear the proper respirator...and ...other protective clothing.� You won't be able to get it off your skin if it drys.

[oldtime]

That's some interesting looking base coat.
I think I've read about it a few years back but never knew of anyone who used it.

[athawk11]

That's some interesting looking base coat.
I think I've read about it a few years back but never knew of anyone who used it.

It is an interesting product.  Not knowing much about high tech primers that claim to stabilize and seal a rusted surface, I bought into the hype, all the time hoping it would do what it claimed it could.  At this point, I am a believer.  One claim these folks make is that it can fill lightly pitted steel.  For this roll, I say it is marginally true, but does not do what a filler primer does.  Other than that, it was easy to work with.  It can be sanded too.  If you spray your next coat (mine was a filler primer) while the silver is still slightly tacky, you'll get a terrific bond...no matter what type of paint/primer you use. 

Give it a try if you have a rusty project.  I think you'll like it.