I have spent a bunch of time here searching threads for aluminum painting info. I found a lot of it and forgive me please if I ask a question that has been answered 1000 times.
I'm going to repaint my 18' Starcraft project boat.
Some of the bare metal is exposed and some of the paint still exists.
I understand that using a zinc chromate etching primer is preferred on unpainted raw aluminum and I will try to do this. My question is in regard to what happens if this primer contacts some of the existing paint?
Will it bubble the old paint or will it simply cover over it?
I want to clean up the old paint and rough it up with 150-200 grit paper. I will then wash it thoroughly and use this as the base for my new paint. But for the areas of raw aluminum here and there where I patched old holes with the MIG and ground them smooth, I wanted to use the zinc chromate. But I'm afraid it will lift and bubble the old paint like stripper does.
Anyone have any experience here?
Last question - what kind of paint should I use.
I have read of some guys using Rustoleum. I went to their website and it specifically says Rustoleum is not recommended for applications below the water line???????
Function here is more important to me than form.
I don't want it to look like crap, but I want a coating that will hold up well.
Any suggestions here???
BTW, I will be rolling the paint on and flipping the boat to do this. I don't have a compressor and sprayer.
Thanks for the help.
Mac
I'm going to repaint my 18' Starcraft project boat.
Some of the bare metal is exposed and some of the paint still exists.
I understand that using a zinc chromate etching primer is preferred on unpainted raw aluminum and I will try to do this. My question is in regard to what happens if this primer contacts some of the existing paint?
Will it bubble the old paint or will it simply cover over it?
I want to clean up the old paint and rough it up with 150-200 grit paper. I will then wash it thoroughly and use this as the base for my new paint. But for the areas of raw aluminum here and there where I patched old holes with the MIG and ground them smooth, I wanted to use the zinc chromate. But I'm afraid it will lift and bubble the old paint like stripper does.
Anyone have any experience here?
Last question - what kind of paint should I use.
I have read of some guys using Rustoleum. I went to their website and it specifically says Rustoleum is not recommended for applications below the water line???????
Function here is more important to me than form.
I don't want it to look like crap, but I want a coating that will hold up well.
Any suggestions here???
BTW, I will be rolling the paint on and flipping the boat to do this. I don't have a compressor and sprayer.
Thanks for the help.
Mac