Pin holes in alum Tinny

[brush]

Hello Guys , I fish regularly in Mates Stacer 399 Proline. The boat is 4 years old . The Dealer fitted the front and rear platform to the Boat using Marine Alum and Ply/ Carpet. Pin holes are reg.showing up around the welds. Dealer wiped hands on the fault, even though it was built in his workshop. Mate has had a Alum Spec Welder repair 4 or 5 pin Holes ,[$$$], but they keep on coming.
Easy way is to unload the Boat but that is not what he wishes to do.
I read some where on Fishing sites that, a good wash down with White Vinegar and Water ,let dry and use a 3M product 5000 I think, will help the corrosion.. What do you think.
Cheers Brush

[frankgrimes]

Is he disconnecting battery when boat not in use?

Also make sure there are no sinkers/swivels etc left in bottom of boat.

Mick

[Greg001]

As Frank said take the batteries out of the boat when it's not in use and wash libeerally with fresh water.
Now that the electolosis has started it's hard to stop but this should slow it down.
Depends on the grade of ally used too.

[Shawn 66]

Is he disconnecting battery when boat not in use?

Also make sure there are no sinkers/swivels etc left in bottom of boat.

Mick

Mick is quite correct in what he is saying . Another option would be to install a battery isolator switch as I have done . The added benefit to this is the increased security it offers.
Shawn

[brush]

Thanks ,Greg, Frank, and FT, Quite aware about electrolisis, O/B and Elect Batterys are disconnected as is the the floor removed after each session . We would like to know if there is a alum treatment any of you fellas have used to slow the process down. Is there any epoxy treatment that can be used?
Cheers
Brush.

[GLXMAN]

Hi There,
FWIW,
I have a fishing buddy that has a stacer with the same problem, appears to be a problem with models made at a certain date,
We both have searched the net for an answer with no luck,

A friend that has had many years of experience with alloy boats suggested that, in some models of stacer, the ribs around the hull had a sealant underneath that contained carbon, he stated that you would have to remove all the ribs, clean the whole boat up, and re-weld. and re-seal, otherwise the problem would continue

His suggestion to a friend that has one of these, "pin hole" stacers, is to count his losses and recycle the alloy,

Not want you want to hear but still better than having the bottom of the boat fall away just after putting enough chum in the water to bring jaws from Adelaide

Regards,
Gary

[Skusto]

Hello Guys , I fish regularly in Mates Stacer 399 Proline. The boat is 4 years old . The Dealer fitted the front and rear platform to the Boat using Marine Alum and Ply/ Carpet. Pin holes are reg.showing up around the welds. Dealer wiped hands on the fault, even though it was built in his workshop. Mate has had a Alum Spec Welder repair 4 or 5 pin Holes ,[$$$], but they keep on coming.
Easy way is to unload the Boat but that is not what he wishes to do.
I read some where on Fishing sites that, a good wash down with White Vinegar and Water ,let dry and use a 3M product 5000 I think, will help the corrosion.. What do you think.
Cheers Brush

hi in your orginal opening you said it was happening on welds from front and rear platforms placed in by dealer is this correct and are the orginal boat welds okay?

[Roughasguts]

Are these welds painted??????
Just thinking these dodgy welds are probably holding salt in tiny holes and just keep eating away.

So maybe a good Hot water scrub and high pressure clean to get the salt out! and mask up the area and put a 2 pac or similar coating of paint over the weld to keep the salt off. You know something nice and smooth so theres no where for more salt to sit.

Cheers.

[TheRealAndy]

Unlikely to be electrolysis from the battery, especially out of water. Sounds more like insufficient cleaning, or if a problem with that make/model could be a bad batch of aluminium.

[brush]

Gooday Guys, Great to hear your comments , yes SKUSTO all the Stacer welds are fine , only the additions from the Dealers welds, which are welded to the Mfg ribs. Roughy, no not painted,. GLX, mate may have to bite the bullet and sell, But in the back of his mind he could not do that to the un-suspected buyer.
This is the benefit of being a member of a site like Ausfish, hopefully someone may come up with a good solution.
Safe Boating,
Brush

[GLXMAN]

Hi Brush,
Can see the situation you are in, I could not sell either, I would fix first then sell,
FWIW, an old guide friend of mine who used to guide in the NT, now retired, still reckons that the black goo behind the ribs is one of the problems, still fixable I would imagine,
It would be good to find out what Stacer are doing with the later models and introducing the new method, hopefully, someone at Stacer may have a solution
Regards,
Gary

[Jarrah Jack]

Just had a look under the floor of my 33 year old quinnie yesterday and its rock solid. The've used some heavy duty rubber between the ribs and the sheet.

Quintex?stacer had the solution years ago, the black goo must be cheaper.