Big voyager trailer rust repairs?

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Post Options Post Options   Likes (0) Likes(0)   Quote MikeAqua Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2016 at 9:34am
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Re-galved trailers: De-register the old plate, take the 'shiny' new trailer to the WOF station register as new and get a 3 year WOF.
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Post Options Post Options   Likes (0) Likes(0)   Quote MacSkipper Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2016 at 11:18am
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Originally posted by MikeAqua MikeAqua wrote:

Re-galved trailers: De-register the old plate, take the 'shiny' new trailer to the WOF station register as new and get a 3 year WOF.
Good point have to say I am enjoying 1 year warrants at present though I still do some checks at 6 months.
Good fishing trip nothing breaks, great trip catch fish.
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Post Options Post Options   Likes (0) Likes(0)   Quote Wind Up Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2016 at 9:36am
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Typically to get a durable alloy trailer you have to use heavy alloy and therefore negate any weight benefits. Sure they wont rust but as previously stated if you go to light cracking is inevitable as alloy work hardens ie lacks ductility. Steel is far more ductile and can take a lot of cycles of flexing before cracking. To get more life from your steel trailer tell the galvanisers you want 600 gm/m2 minimum zinc coating weight. This usually ends up closer to 1000 gm/m2. This is why 20 year old plus trailers aren't rusting like new ones. Sure you pay a little more for the coating but given the longer life its a no brainer.
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Post Options Post Options   Likes (0) Likes(0)   Quote Wind Up Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2016 at 9:41am
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Alloy lacks ductility therefore cracks due to the work hardening caused by the constant flexing a trailer is subject to.
Steel is far more ductile hence lack of problems with cracking. Get your galvaniser to apply at least 600 gm/m2 of zinc as a minimum coating weight. This will end up with closer to 1000 gm/m2 .It wont cost much more and a heavy coating gives longer life - look at the old trailers that show no corrosion. 
To eliminate cracking in alloy you need to go to much heavier sections and therefore negate any weight savings plus alloy trailers are more expensive anyhow.
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Post Options Post Options   Likes (0) Likes(0)   Quote Steps Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2016 at 5:58pm
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To get more life from your steel trailer tell the galvanisers you want 600 gm/m2 minimum zinc coating weight. This usually ends up closer to 1000 gm/m2. This is why 20 year old plus trailers aren't rusting like new ones. Sure you pay a little more for the coating but given the longer life its a no brainer.

Thank you.. I have been asking around for quite some time as to why so many old sea nymphs type trailers on trade me.. and ours.. are in such a good condition...
I looked into if hot dipped or electroplated . allsorts of stuff, but everyone has ideas but know one actually knew
Then u pop up with that and everything falls into place.
"No Brainer"
hell yeah.
I understand in the competitive market and the  modern disposable economy price is the number one seller... but do wonder why companies dont advertise the option of the heavier  old school galv.????
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Post Options Post Options   Likes (0) Likes(0)   Quote MacSkipper Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2016 at 6:27pm
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Originally posted by Wind Up Wind Up wrote:

Alloy lacks ductility therefore cracks due to the work hardening caused by the constant flexing a trailer is subject to.
Steel is far more ductile hence lack of problems with cracking. Get your galvaniser to apply at least 600 gm/m2 of zinc as a minimum coating weight. This will end up with closer to 1000 gm/m2 .It wont cost much more and a heavy coating gives longer life - look at the old trailers that show no corrosion. 
To eliminate cracking in alloy you need to go to much heavier sections and therefore negate any weight savings plus alloy trailers are more expensive anyhow.
Like steps I have wondered about this as new trailers don't seem to last compared to old ones - and your answer seems straightforward - but why don't some manufacturers of trailers offer this option as it would add longevity - how much more would it be for a typical 4-5m trailer?
Good fishing trip nothing breaks, great trip catch fish.
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Post Options Post Options   Likes (0) Likes(0)   Quote whitigroper Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2016 at 9:02pm
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cause how the hell are you gonna measure it . With the way big business runs these days all that would happen is mr perry would end up with your money in his pocket and you would get the standard 10gm/m2 coating . 
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Post Options Post Options   Likes (0) Likes(0)   Quote Steps Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 2016 at 10:11am
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cause how the hell are you gonna measure it
We used to measure gelcoat and paint thickness with a basic little tool 40 odd yrs ago... down to parts of a thou... Im sure that or a similar method is still around today.
Possibly a bit much for the basic Super cheap  $20 verneer  thu.
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Post Options Post Options   Likes (0) Likes(0)   Quote Wind Up Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2016 at 9:46am
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Both Perry's and CSP can accurately measure how much zinc they are putting on as the coating weight is commonly specified in construction drawings. Tell them you want at least 600 gm/m2 and that is what you will get.
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Post Options Post Options   Likes (0) Likes(0)   Quote edge01 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2016 at 7:47pm
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Any progress a.m?? Got any photos of this rust??
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