Protecting metal against rust?
Protecting metal against rust?
I am pretty darn convinced there are a few chemical and/or metal working or other mechanically inclined propeller heads on this forum that can help me.
My boat trailer is an old Calkins that have a number of parts rusted out. the manufacturer uses regular steel, not galvanized (VERY bizarre for a boat trailer)
So, I ordered replacement parts and will start some restoration work, but these new parts are still just regular old steel.
Anything I can do to protect it as much as possible from rust? I would ideally like to treat these parts before i replace them..
Here is a good example of a rusted vs. new part.
My boat trailer is an old Calkins that have a number of parts rusted out. the manufacturer uses regular steel, not galvanized (VERY bizarre for a boat trailer)
So, I ordered replacement parts and will start some restoration work, but these new parts are still just regular old steel.
Anything I can do to protect it as much as possible from rust? I would ideally like to treat these parts before i replace them..
Here is a good example of a rusted vs. new part.
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- bracket_new.JPG (17.96 KiB) Viewed 2062 times
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- bracket_old.JPG (34.63 KiB) Viewed 2062 times
"I believe that if life gives you lemons, you should make lemonade... And try to find somebody whose life has given them vodka, and have a party" - Ron White
Re: Protecting metal against rust?
I would make sure that you don't get the parts wet! That should solve your problem........
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Re: Protecting metal against rust?
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Re: Protecting metal against rust?
POR15 is awesome. Expensive, but will do the trick.
Otherwise powder coating.
Another option is I think is called galvalite(?) , a zinc based paint.
Otherwise powder coating.
Another option is I think is called galvalite(?) , a zinc based paint.
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- I got a good squirt in my mouth
- I would imagine that there would be a large amount of involuntary gagging
- I don't know about you but I'm not into swallowing it
CCR discussion on Caustic Cocktails.
- I got a good squirt in my mouth
- I would imagine that there would be a large amount of involuntary gagging
- I don't know about you but I'm not into swallowing it
CCR discussion on Caustic Cocktails.
Re: Protecting metal against rust?
Have them galvanized.
http://www.scottgalvanizingco.com/
IIRC they charge by the pound with a minimum charge. They are so small you might be able to talk them into batching them with someone else's order.
http://www.scottgalvanizingco.com/
IIRC they charge by the pound with a minimum charge. They are so small you might be able to talk them into batching them with someone else's order.
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Re: Protecting metal against rust?
Yes you can launch in Ballard and go out through the locksJabberjaw wrote:Keep it out of salt water
Sounder wrote:Under normal circumstances, I would never tell another man how to shave his balls... but this device should not be kept secret.
Re: Protecting metal against rust?
Kinda defeats the purpose of having an ocean going boat..Jabberjaw wrote:Keep it out of salt water
I'l give the galvanizing guys a call, thanks a lot for that info, Richard!
"I believe that if life gives you lemons, you should make lemonade... And try to find somebody whose life has given them vodka, and have a party" - Ron White
Re: Protecting metal against rust?
Edmonds has a good launch system that keeps your trailer out of the water. If your really skilled at backing very fast. You hit the brakes just before the trailer hits the water. Then post the video on YouTube. Should go viral pretty quickly.
Note: galvanizing helps a lot but eventually it gives into the rust as well.
Note: galvanizing helps a lot but eventually it gives into the rust as well.
Got Water?
Re: Protecting metal against rust?
When getting thing coated, either paint or Galvanized keep in mind that the coating is going to detract from the space between parts. Before doing any kind of coating make sure there is sufficiant space between parts to allow them to fit together without interference lest your money goes out the door when you force the parts together.
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Re: Protecting metal against rust?
Hmm.. Great point!
"I believe that if life gives you lemons, you should make lemonade... And try to find somebody whose life has given them vodka, and have a party" - Ron White
Re: Protecting metal against rust?
If some of the galvanizing is abraded on that hinge, the remainder will partly help protect the metal (well, galvanicly). Paint would be thinner but useless where abraded. You can also bend the part a bit in a vise if the post treatment fit is too tight. Its a trailer not a pacemaker
Sounder wrote:Under normal circumstances, I would never tell another man how to shave his balls... but this device should not be kept secret.
Re: Protecting metal against rust?
Two other points: first, rinse the trailer off after salt water with a hose. That'll help immensely, no matter what your coatings are.
Second, if you're doing some restoration work, you can upgrade the fasteners on it to stainless or hot-dip galvanized... don't forget about them in the process!
Second, if you're doing some restoration work, you can upgrade the fasteners on it to stainless or hot-dip galvanized... don't forget about them in the process!
There are no stupid questions, but there sure are a lot of inquisitive idiots...
Re: Protecting metal against rust?
or spray down with salt away...
=============================================
- I got a good squirt in my mouth
- I would imagine that there would be a large amount of involuntary gagging
- I don't know about you but I'm not into swallowing it
CCR discussion on Caustic Cocktails.
- I got a good squirt in my mouth
- I would imagine that there would be a large amount of involuntary gagging
- I don't know about you but I'm not into swallowing it
CCR discussion on Caustic Cocktails.
- jeffgerritsen
- Dive-aholic
- Posts: 276
- Joined: Thu Sep 24, 2009 11:03 am
Re: Protecting metal against rust?
When manufactures do really stupid things, like the boat trailer bumper bracket you described Koos, I resort to "Yankee ingenuity" fixes. Build the bracket myself. The bracket you've pictured look like simple bends. Run down to the local scrap metals yard and pick up some 1/8 inch thick stainless steel plates grade 304 (they usually sell by the lb), using a scroll saw, cut the pieces out, bend in a bench vise, drill needed holes, and wa'la your done and have a bracket that wont rust nearly as easy. Also make sure you get stainless steel hardware. Grade 304 should suffice. I've found a local Ace Hardware to have a very nice selection.
HTH,
Jeff
HTH,
Jeff
Re: Protecting metal against rust?
Jeff, this was just one bracket to show the rust.. but I have 8 brackets to replace and 16 rollers and various other non galvanized parts..
So I opted to just order the bunch from the trailer manufacturer, but they are still not galvanized :(
I'll probably just cold galvanize them and make sure the trailer is rinsed properly when ever used in salt water and also stored under tarp or something.
So I opted to just order the bunch from the trailer manufacturer, but they are still not galvanized :(
I'll probably just cold galvanize them and make sure the trailer is rinsed properly when ever used in salt water and also stored under tarp or something.
"I believe that if life gives you lemons, you should make lemonade... And try to find somebody whose life has given them vodka, and have a party" - Ron White
Re: Protecting metal against rust?
Thanks everyone for all the tips!! I've got my work cut out for me this weekend..
BTW - anyone ever use this "Corroseal Rust Converter Primer" stuff before??
I'm thinking of treating some of the lightly rusted areas with that and then painting over it.
BTW - anyone ever use this "Corroseal Rust Converter Primer" stuff before??
I'm thinking of treating some of the lightly rusted areas with that and then painting over it.
"I believe that if life gives you lemons, you should make lemonade... And try to find somebody whose life has given them vodka, and have a party" - Ron White
Re: Protecting metal against rust?
The only product I have experience with is called Rust Mort. It kills and converts rust to a hard surface and then can be painted over. Not bad for open surfaces on your trailer frame but it probably won't do much for your brackets.kdupreez wrote:Thanks everyone for all the tips!! I've got my work cut out for me this weekend..
BTW - anyone ever use this "Corroseal Rust Converter Primer" stuff before??
I'm thinking of treating some of the lightly rusted areas with that and then painting over it.
http://www.semproducts.com/product-cata ... rust-mort/
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I thought she was right until I dove with eliseaboo!
Re: Protecting metal against rust?
After owning lots of boats and trailers, I have come to realize that even with good rinsing and salt away some parts are going to get eating away no matter what. I think they design them that way .
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It's what's for breakfast.