Forums > Kitesurfing Foiling

Corrosion Slingy Fuslage

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Created by Capt.Gumby 2 months ago, 26 Dec 2020
Capt.Gumby
QLD, 308 posts
26 Dec 2020 2:04PM
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Hey Folks

Any advice to prevent this ongoing corrosion?

Foil is washed down in fresh every session, pulled apart weekly and threads re-greased. I have to sand the corrosion back weekly as the front wing will become jammed..... others that have the same set up don't seem to have anywhere near this amount of corrosion. Foil is 6 months old.....

Cheers



airsail
QLD, 551 posts
26 Dec 2020 3:41PM
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I put mine together with marine grease between all surfaces, no problem. Once it starts it is difficult to control without grinding all the corrosion away and retreating the alloy.

Sandyknickerz
19 posts
27 Dec 2020 7:04AM
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airsail said..
I put mine together with marine grease between all surfaces, no problem. Once it starts it is difficult to control without grinding all the corrosion away and retreating the alloy.


That would be right. Also need to find a better means to reduce /avoid movement of the fuselage within the wing, which has caused the anodising to get scrubbed off in the first place.

Fly on da wall
VIC, 719 posts
27 Dec 2020 4:35PM
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Mine was pretty tight fit but I still got the salt build up in there. The wing did sieze up on the fuselage but I did manage to get it off. That's just what happens with alloy in salt water. Have a Moses set up now and the fuselage does build up salt where it connects to the mast. Again it's salt water and alloy... Salt breed's on it in dark wet places.

djdojo
VIC, 1586 posts
28 Dec 2020 12:57PM
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The obvious solution would be to buy a foil with no aluminium components (and especially no adjacent carbon and aluminium components) but people seem to prefer to pray for miracles and throw good money after bad.

The kids keep eating the chocolate that I habitually leave in plain view on the kitchen table. How can I get them to stop? I'm willing to try anything except to stop leaving the chocolate in plain view on the kitchen table.

(Disclaimer - I am both the parent and the child in the chocolate example, but it's more than three years since I rode a foil with aluminium components and I figure I've recouped whatever price premium attaches to all-carbon foils, even if I've then spent my savings on chocolate.)

Kamikuza
QLD, 5836 posts
30 Dec 2020 7:54PM
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djdojo said..
The obvious solution would be to buy a foil with no aluminium components (and especially no adjacent carbon and aluminium components) but people seem to prefer to pray for miracles and throw good money after bad.

The kids keep eating the chocolate that I habitually leave in plain view on the kitchen table. How can I get them to stop? I'm willing to try anything except to stop leaving the chocolate in plain view on the kitchen table.

(Disclaimer - I am both the parent and the child in the chocolate example, but it's more than three years since I rode a foil with aluminium components and I figure I've recouped whatever price premium attaches to all-carbon foils, even if I've then spent my savings on chocolate.)


I guess if we're using the formula of "one is bad, therefore all are bad" then nobody should buy anything at all

Kamikuza
QLD, 5836 posts
30 Dec 2020 7:57PM
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I'd contact the dealer. Something weird there, maybe you've shot yourself in the foot sanding it ... but I've never heard of it from other SS riders and we've a few here who don't even use TefGel.

Capt.Gumby
QLD, 308 posts
31 Dec 2020 4:36PM
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Kamikuza said..
I'd contact the dealer. Something weird there, maybe you've shot yourself in the foot sanding it ... but I've never heard of it from other SS riders and we've a few here who don't even use TefGel.


I have to use a rubber mallet to tap the front wing off as the corrosion build up is that bad, then sand back the fuselage, grease the area. Seem to be doing this nearly every week or two. Most (if not all) locals (Cairns) using this fuselage are experiencing the same issue.

Kamikuza
QLD, 5836 posts
31 Dec 2020 6:31PM
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Capt.Gumby said..
I have to use a rubber mallet to tap the front wing off as the corrosion build up is that bad, then sand back the fuselage, grease the area. Seem to be doing this nearly every week or two. Most (if not all) locals (Cairns) using this fuselage are experiencing the same issue.



Bad batch? Or something really bad in the water? Are the other SS users pulling their gear apart every session? Any other aluminum foil users experiencing the same thing?

I take the foil off the board and leave it in the boot of the car. Pull it apart once a year to travel and TefGel...

Fly on da wall
VIC, 719 posts
1 Jan 2021 7:16AM
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I left my wing on for a few months over winter and it seized on the fuz. Luckily I got it off with no damage. It was a good set up though you just need too maintain it just like anything that goes in salt water...

Livit
WA, 515 posts
6 Jan 2021 11:31AM
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djdojo said..
it's more than three years since I rode a foil with aluminium components and I figure I've recouped whatever price premium attaches to all-carbon foils, even if I've then spent my savings on chocolate.)


2 years so far on Moses with Aluminium fuselage. I use tef gel once every 2-3 months. No bubble under paint so far.At half the cost (or a third compared to some others), I actually think it is not such a bad option. I can have 2 or 3 different fuselages and therefore try different set ups for the same cost.

I was also coming from a Zeeko full carbon so I was a bit skeptical at first...not anymore.

Swavek
WA, 360 posts
22 Jan 2021 12:07PM
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I switched from Moses to Armstrong for this reason . I had no issues with seized screws in my stolen Moses foil but had fuselage corrosion in the mast pocket and along the carbon wings (I did not wash my gear after every use).

Had a quote to replace my foil with another Moses $2400 (without covers, mast mounting hardware good only for the Moses board) vs. Armstrong close to $3000 (with carry bag, all covers, universal tee-nuts and screws).

I paid close to $600 extra for Armstrong not to ever worry about disassmebly, fiddly screws, washing my gear at home, and periodic lubricating of screws.... The Armstrong mast plate has slots rather than holes to mount it to the board - mast mounting tee-nuts and screws (also titanium and stainless) permanently live in my board - further time saver and convenience. Given the foil should last a few years I consider it money well spent (I put in at least 200 sessions per year).

I am doing kiting only, however, if you are into winging and prone foiling the added benefit is that the same mast/fulelage/stabiliser can be used for all these options (you change only the front wing).

Both Moses and Armstrong are great foils and I am sure there are many other great foils (I have not tried that many) but my preference going forward is to pay a bit more for a maintenance free setup (full carbon or carbon/titanium).

natho6026961
WA, 74 posts
22 Jan 2021 5:10PM
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That degree of corrosion over such a short period of time as stated by the Captain, even with neglect seems very weird.

I also wonder as big K has suggested if there was an issue with some of the SS fuses, maybe the particular alloy used without checks. Quality control? Nothing surprises me these days.

Be interesting to see what the dealer has to say about it.

dafish
NSW, 1539 posts
23 Jan 2021 9:00AM
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Select to expand quote
Swavek said..
I switched from Moses to Armstrong for this reason . I had no issues with seized screws in my stolen Moses foil but had fuselage corrosion in the mast pocket and along the carbon wings (I did not wash my gear after every use).

Had a quote to replace my foil with another Moses $2400 (without covers, mast mounting hardware good only for the Moses board) vs. Armstrong close to $3000 (with carry bag, all covers, universal tee-nuts and screws).

I paid close to $600 extra for Armstrong not to ever worry about disassmebly, fiddly screws, washing my gear at home, and periodic lubricating of screws.... The Armstrong mast plate has slots rather than holes to mount it to the board - mast mounting tee-nuts and screws (also titanium and stainless) permanently live in my board - further time saver and convenience. Given the foil should last a few years I consider it money well spent (I put in at least 200 sessions per year).

I am doing kiting only, however, if you are into winging and prone foiling the added benefit is that the same mast/fulelage/stabiliser can be used for all these options (you change only the front wing).

Both Moses and Armstrong are great foils and I am sure there are many other great foils (I have not tried that many) but my preference going forward is to pay a bit more for a maintenance free setup (full carbon or carbon/titanium).


The Armstrong setup is exceptional in its design. The package is really well put together with the bag and covers. That extra bit of cost will fade after a few sessions, but the quality of the product will last a very long time. I have three front wings for various conditions and use them all regularly. It's such a blast to experiment with all the different combos and mast positions. I really liked the Moses setup too, I have ridden a few at my local, great foils. However, having all carbon and titanium means the future is here now.

KAOS69
WA, 994 posts
30 Jan 2021 10:24AM
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Once the once the anodize has worn off rubbed off been sanded off There's No Going Back it obviously was not anodize properly in the first place I have a lot of slingshot gear the ones with anodized don't corrode the ones that are worn will not stop corroding

kobo
NSW, 523 posts
30 Jan 2021 7:33PM
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Here's the thing with a Slingy wing........carbon and aluminum are very reactive together in saltwater, So Slingshot use a layer of fibreglass on the inside of the wing connection to insulate the aluminuim from the carbon.
But the front edges of the fuse are quiet sharp and every time you slide the fuse into the wing it shaves a little more off the fibreglass insulation ,which allows more corrosion and makes the connection looser.
Best to round those sharp edges off with a fine file, and paint a thin layer of epoxy or 2k clear on the inside of the wing connection to make it a snug fit again and restore the insulation.
be careful not to paint too much in there, use a long handled small brush and do one light coat, standing the wing up so any excess can drain out.



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"Corrosion Slingy Fuslage" started by Capt.Gumby