Forums > Windsurfing General

Repairs to slight skin damage on Mistral

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Created by Mistral Nick > 9 months ago, 28 Jan 2008
Mistral Nick
QLD, 370 posts
28 Jan 2008 9:24PM
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I have a slight stone chip about half a finger nail in area and about 1mm deep. What material could be used to repair the skin? I am thinking maybe Epifill.

jp747
1553 posts
28 Jan 2008 11:07PM
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hiya nick i have about the same problem but on the top part just infront of the back footstraps of an old classic of mine a Mistral flow 266 custom. i guess after pulling out the foot and stumping it to gybe it eventually after all these years cracked and sunk about that much too and water was oozing out after i left it out on the sun after a session. so am trying to bake it in the sun with the vent plug out. my question too is if i scrape the top off what will it replace it with. it seems that water has penetrated about a palm sized styro inside and a little bit of delamination. am thinking of just baking it for 2wks. and sealing it or opening it up around the 3cm. crack and exposing more it sure beats the brains out of me

crawf
WA, 43 posts
28 Jan 2008 11:23PM
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boardlady.com/

check it out...

jp747
1553 posts
28 Jan 2008 11:29PM
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good find crawf

Crash Landing
NSW, 1173 posts
29 Jan 2008 12:09PM
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If it's just gelcoat damage, use epifil. It's easy and sands down well.

JP747 - you'll need to cut out all the delam or you could try to inject epoxy resin or expanding foam (epoxy safe). If it's only palm sized i'd cut out and re-glass..

jp747
1553 posts
29 Jan 2008 11:55AM
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hey crash i've been holding off to prying it open till someone tells me too i guess i should
however there really is no injection system in our parts here only the way we fix it is use styropore and cut to dimensions overlap with white glue, resin and fibermat it and add woven roven fiber and seal that is after all is dry

Crash Landing
NSW, 1173 posts
29 Jan 2008 2:12PM
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You can just use syringes - but making sure you have holes for it to expand out of on the other side of the damage (so you don't make it worse!).

Shouldn't be too tricky and if it binds well it would be lot quicker.

P.C_simpson
WA, 1491 posts
29 Jan 2008 12:44PM
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some sort of gelcoat repair stuff, got this 2 part epoxy putty i use for this sort of thing, sands excellent..cant remember who made it right now, go to a fiberglass suppliers and they will sort your out...

555
892 posts
29 Jan 2008 1:09PM
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P.C_simpson said...

some sort of gelcoat repair stuff, got this 2 part epoxy putty i use for this sort of thing, sands excellent..cant remember who made it right now, go to a fiberglass suppliers and they will sort your out...


Mistral Nick - gelcoat filler, epoxy filler, or (and only if you're 110% sure it hasn't penetrated to the core - 1mm sounds dangerously deep) you could go the really cheap route and use baking soda, and thin Cyano Acrylate (superglue) to fill it.

JP747 - your trouble sounds a lot more major than Nick's chip..

If it's delam'd inside, and cracked on the outside then gelcoat filler will last as long as it takes for you to step on that part again..

Injecting with Urethane foam, and then filling or glassing over will fix it. Check out the earlier thread on this.. www.seabreeze.com.au/forums/topic.asp?TOPIC_ID=33732&whichpage=2
especially near the end of the second page.

Boardlady link: boardlady.com/injection.htm

If you have a crack through the skin, you'll need to cut it away and glass it, but if it's just soft, you can get away with filling the injection holes.



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"Repairs to slight skin damage on Mistral" started by Mistral Nick