Rust Converter

[Shoyrtt]

Let me preface this post: I did a search on the entire site and only found one thread from 2012 involving rust converter and engine pulleys.

I was in my engine room this weekend doing some cleaning and painting and I noticed a little rust on the forward generator mounts. My boat has been in fresh water for the past 12 years so I was hopeful I was avoiding some of the typical rust issues. It looks like one of the previous owners painted the forward mount the Westerbeke red at some point and may not have primed it well. Then I checked the aft mounts and it doesn't appear there is any paint at all on them. I got my metal brush out and scrubbed the forward and aft mounts to prep for paint. Has anyone here used "Rustzilla" marine grade rust converter or any other product to treat the metal before paint? https://www.rustzilla.com/

 

[Jeremygavin]

I use Corroseal and it seems to work well. I got the recommendation from someone on CSR.

Corroseal Water-Based Rust Converter Metal Primer, Rust Converter - 1 Gal,82331 https://www.amazon.com/dp/B001CRETZ...abc_H27VVQMQ12Q4K1HGECPN?_encoding=UTF8&psc=1

 

[Shaps]

Just did my engine mounts with this. Have used it before on other projects:
https://www.por15.com/por-15-stop-rust-kit

 

[Jaybeaux]

My generator "pan" was rusted from a leaky water pump. I was told to use this...

https://www.amazon.com/Ospho-605-Me...ocphy=9008247&hvtargid=pla-311564357921&psc=1

 

[440 Jim]

POR15, I have been restoring late 60's Fords for some 35 yrs(for mine, not others), all the POR products are first class, no BS.

I spent abut 6hrs in the bilge Saturday surveying and getting parts list up for cooling system maintenance ( zincs, orings, seals, etc.)and have some oportunities in those same areas. I had not made the connection until this thread.

Thank you, thinking out of the box is good folks...

 

[Carpediem44DB]

I second the corroseal, I've used it quite a bit and will continue to use it when I need it.

 

[carterchapman]

Ospho or Etch and Metal Prep from HD. both are phosphoric acid which convert rust (iron oxide) to iron phosphate - which stops rust...https://www.homedepot.com/p/Klean-S...Metal-Prep-Rust-Inhibitor-GKPA30220/100406369

 

[Jaybeaux]

@carterchapman Reviving an older thread. Would you use Ospho on the Air Conditioning metal pans that have a tendancy to rust? Due to Ospho's thin characteristic, you could just pour it in the pan, let sit for a bit, suck out residual....maybe? What do you think?

My Salon AC pan on the 48 which is in an impossible location, clogged up the drain line with rust particles some time after the survey and the day we closed on the boat. I was thinking after winterization, vacuum out all condensate from pan, let dry out for several days, then (maybe) treat with Ospho.

Thoughts?

Jaybeaux

 

[carterchapman]

@carterchapman Reviving an older thread. Would you use Ospho on the Air Conditioning metal pans that have a tendancy to rust? Due to Ospho's thin characteristic, you could just pour it in the pan, let sit for a bit, suck out residual....maybe? What do you think?

My Salon AC pan on the 48 which is in an impossible location, clogged up the drain line with rust particles some time after the survey and the day we closed on the boat. I was thinking after winterization, vacuum out all condensate from pan, let dry out for several days, then (maybe) treat with Ospho.

Thoughts?

Jaybeaux

JB - I do that about every 2 - 3 years. I'm able to access all 5 of mine, so I just use a paint brush for the Ospho and then I paint them with white Rustoleum when the Ospho has dried. HD has a phosphoric acid product that works just like Opho in their paint dept - "Etch and Prep" -or "Concrete and Metal Prep" ...same as Ospho, but cheaper. I even dilute it 50/50 with water and use it to clean my heat exchangers...

 

[carterchapman]

@Jaybeaux - and I used a small plumbing auger, that I got from "China" (Harbor) Freight to "Roto Root" my pan drain lines...

 

[Fill Ess]

Just did my engine mounts with this. Have used it before on other projects:
https://www.por15.com/por-15-stop-rust-kit

POR is awesome. I started getting the small cans because if you ever get any on the lid, you'll never get it open again

 

[Jeepers]

I gotta do it....

I was gonna try naval jelly once but all i got was lint..........