epoxy or polyester ding repair?

[pod]

Hello,

How can I tell if a board is polyester resin or epoxy? I ask because Ding All seem to do different repair kits for each type. It's my mate's board that's got a nasty crack in it. I reckon my board's poly - it's a clear coat of glassy resin over a foam core. The board with the crack, however, has a more opaque white outer layer - maybe not as plasticy looking as the nsp/bic boards (it's a Circle One) but it doesn't look the same as mine.

Any advice anyone? Does it indeed matter that much which repair kit to use?

thanks,

pod.

ps. is it gonna be massive this weekend or what?

[claireabella]

pod, having only done one or two rather rushed jobs on my own board and having just used the kit handed to me, I would like to guess, but I'm sure if I bump this back to the top someone will give you a proper answer pretty soon.

oh, and good luck!

[hughesy]

I would have thought that kind of stuff would have been discussed at the time of purchase. If not why not ring whoever the board was bought from and ask them.

[pod]

thanks, (i was beginning to loose all faith in this forum),

anyway i've since found some useful info on surfboard construction here:-
http://www.croyde-surf-cam.com/surfboard-guide.htm
and some useful stuff on ding repair here:-
http://jfmill.home.comcast.net/dings/dingdex.html

I might go and talk rot in the General section like everyone else now.
Later.
pod.

[ow3n]

basically, if you can see a stringer through the glass it's probably polyester, due to the extensive bagging and forming processes on epoxy boards you can't see anything of the construction from the outside. Do they even have stringers? who knows?

[johnnyb]

Epoxy resin can be used on polyester/polyurethane boards fine (ding putty is epoxy based). But ding repair kits for polyester/polyurethane boards (the resin+catalyst ones) contain styrene and will melt the EPS foam that epoxy boards tend to be made of. So if you don't know be sure and use epoxy. See some horrors with normal ding repair and epoxy/EPS boards-eaten away inside...eek.

[orangewine6]

Hi guys thanks for the suggestion that you give that's very kind and helpful!!!!


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Thanks and regards

[grawp]

If you sand a little bit of it then polyester tends to smell of, well, polyester, whereas epoxy doesn't really smell. Personally I use epoxy to repair everything from a teacup upwards. Great stuff.

[Monkey_Alan]

MSW in action! There you go pod - ask a question on here and your still getting answers 5 years later

[pod]

Yeah I was quite ammused when i got a mail to tell me that the thread I was apparently still watching had got a response.

This was in fact my first post on MSW and I was also ammused to see that even then I was soon having doubts about the forum.

Anyway, cheers grawp. The board got patched up with something but it rarely gets wet anymore unfortunately.

My main concern now is why I'm still so shit at surfing if I've really been at it this long .

[Monkey_Alan]

My main concern now is why I'm still so shit at surfing if I've really been at it this long .

Dream on grommit, Ive been at it 20yrs and still utterly shite

[davebrads]

A very old thread, but I have only just joined so that's my excuse

I have a background in canoe slalom, repairing boats is something we have to live with so I have a bit of experience of repair work on composite lay-ups.

Basically the answer is to use Epoxy. Epoxy sticks to pretty much anything, wheras Polyester won't stick to an Epoxy lay-up. Also Epoxy is much easier to work with, and worth the extra expense for the extra peace of mind of knowing that the repair is going to work.

[Rickyroughneck]

A very old thread, but I have only just joined so that's my excuse

I have a background in canoe slalom, repairing boats is something we have to live with so I have a bit of experience of repair work on composite lay-ups.

Basically the answer is to use Epoxy. Epoxy sticks to pretty much anything, wheras Polyester won't stick to an Epoxy lay-up. Also Epoxy is much easier to work with, and worth the extra expense for the extra peace of mind of knowing that the repair is going to work.

This, only issue is that epoxy isn't as resistant to UV. Anyone have a solution for that?

[ATTMFKH]

A very old thread, but I have only just joined so that's my excuse

I have a background in canoe slalom, repairing boats is something we have to live with so I have a bit of experience of repair work on composite lay-ups.

Basically the answer is to use Epoxy. Epoxy sticks to pretty much anything, wheras Polyester won't stick to an Epoxy lay-up. Also Epoxy is much easier to work with, and worth the extra expense for the extra peace of mind of knowing that the repair is going to work.

This, only issue is that epoxy isn't as resistant to UV. Anyone have a solution for that?

surf at night

[Chris F]

or in Scotland.

Same thing really, light wise.

[ATTMFKH]

^^^ winter yes , summer no - if you've got the shoulders you can surf for 19hrs on the North Coast in a day

[Veos]

Anyone got any good websites for surfboard repairs/build equipment and materials that you'd rate, as in good prices and good equipment selection?