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Old 01-20-2013, 08:43 AM   #1
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Corrosion blocking spray

This week we will be taking delivery on our new trailer and would like suggestions on preventing corrosion. The trailer will spend most of of the time near the ocean so rusting landing gear etc. is a real concern.

Are there suggestions on a product that might be helpful?
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Old 01-20-2013, 08:46 AM   #2
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Don't know if it's still in use, but Cosmoline is a gease-like product applied to slow corrosion. Maybe someone more knowledgable will chime in.
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Old 01-20-2013, 09:20 AM   #3
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I work in the collision industry, so we are always concerned about corrosion. Unfortunately the best thing to prevent it is to have a galvinized coat and then an acid based primer and then a quiality top coat of paint. But since we can't get that on our trailers here's a couple of tips I can give.

#1- keep the frame clean- sounds simple but mud or dirt will hold moisture against the metal.
#2- you can get a ruberized undercoat from 3M, SEM, and other brands, kind of pricey, I think about $8-10 a big can. It is like a spray on bedliner but it doesn't dry hard like bedliner. And you can spray your frame with it. ( I've used about 3-4 cans on crew cab truck frames)
#3- if you notice any chips or rust spots near corners or bends, scuff the spot with a scotch brite or sandpaper (like 150-220 grit) and apply some etch primer and then some paint over the spots.

Possibly mud flaps on the tow vehicle or even behind the wheels on the trailer can help with the dirt and rock chips.
We don't have the perfect solution to prevent rust, but this should be better than factory!
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Old 01-20-2013, 09:45 AM   #4
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I have used the under coating you speak of and would like to know if it is flexible enough to use on landing gear that is extended and retracted.



Quote:
Originally Posted by MillerTime View Post
I work in the collision industry, so we are always concerned about corrosion. Unfortunately the best thing to prevent it is to have a galvinized coat and then an acid based primer and then a quiality top coat of paint. But since we can't get that on our trailers here's a couple of tips I can give.

#1- keep the frame clean- sounds simple but mud or dirt will hold moisture against the metal.
#2- you can get a ruberized undercoat from 3M, SEM, and other brands, kind of pricey, I think about $8-10 a big can. It is like a spray on bedliner but it doesn't dry hard like bedliner. And you can spray your frame with it. ( I've used about 3-4 cans on crew cab truck frames)
#3- if you notice any chips or rust spots near corners or bends, scuff the spot with a scotch brite or sandpaper (like 150-220 grit) and apply some etch primer and then some paint over the spots.

Possibly mud flaps on the tow vehicle or even behind the wheels on the trailer can help with the dirt and rock chips.
We don't have the perfect solution to prevent rust, but this should be better than factory!
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Old 01-20-2013, 09:53 AM   #5
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If it is like a scisor jack, I think it would work. If drop legs, like the front of a 5er, I think it would rub off.
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Old 01-20-2013, 10:02 AM   #6
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LPS 3 is what we use in the acft industry and other stuff but you can't get ahold of the other stuff
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Old 01-20-2013, 10:31 AM   #7
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I am reading about Corrosion Block by Lear Chemical. I have seen it around boats here on the coast.
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Old 01-20-2013, 04:29 PM   #8
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We coated the underside of our TT with a product called Rust Check, recommended by a number of fellow campers here in Canada. Site indicates available in eastern states.
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Old 01-20-2013, 10:04 PM   #9
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Quote:
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I am reading about Corrosion Block by Lear Chemical. I have seen it around boats here on the coast.
corrosion block like ACF 50 removes moisture and leaves the cell dead. but does not protect the metal from future corrosion. perockotone (spelling)
is installed at most factories ( Boeing,Lockheed) and coats the metal so moisture can not attack
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Old 01-22-2013, 10:38 AM   #10
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Someone today told me that they have regularly sprayed their landing gear and undercarriage with automatic transmission fluid. He claimed that his 7 year old fifth wheel had little to no rust after all those years on the beach.
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