sanding a sabfoil wing

9 months ago
Reply
Register to post, see what you've read, and subscribe to topics.
Paducah
Paducah
2843 posts
2843 posts
29 Aug 2025 10:00am
I'm doing some maintenance on a friend's sabfoil wing (950). Along with the tip repair, there are some scratches on the bottom. As well, looking at the clearcoat, it doesn't look smooth and fair (a little bit of orange peeling). Water beads on the surface. I'm tempted to wet sand it smooth .

Has anyone else done this and was the result noticeable? Or am I taking my race wing obsessions some place they don't need to go?
miamiwindsurfe
miamiwindsurfe
204 posts
204 posts
29 Aug 2025 10:12pm
Wet sand in the direction of water flow, 900 or 1200, being doing it to formula fins, slalom fins and now foils forever...
jdfoils
jdfoils
456 posts
456 posts
29 Aug 2025 10:51pm
If it has orange peel and beads water, it can definitely be noticeably improved.
Mark _australia
Mark _australia
WA
23691 posts
WA, 23691 posts
30 Aug 2025 12:37pm
Agreed

but if there are some scratches I'd say re- clear the whole thing then sand as that will also fill the scratches
Paducah
Paducah
2843 posts
2843 posts
30 Aug 2025 8:04pm
Mark _australia said..
Agreed

but if there are some scratches I'd say re- clear the whole thing then sand as that will also fill the scratches


Thanks, all. Yes, Mark, my foil ocd wouldn't allow me to do otherwise. Let's just say of it were my wing, I wouldn't be asking the question but some people prefer shiny over performance and was getting an idea of what shiny might be costing him.
Got owner's permission last night to go to town on it. Getting my wet/dry and spray bottle ready.
TomDW
TomDW
63 posts
63 posts
3 Sep 2025 5:18am
Any more results in meantime?

I have 3 glossy Balz Pro wings, some with some scratches along the chord frow skirting oysters . ouwch.
what would be the best way to repair?

I read Mark recommends a new clear coat. Would you sand it first before putting on the clear coat, then clear coat, then wet sand to a matte finish?

would I really notice the sanded foil for freeride foiling?
John340
John340
QLD
3421 posts
QLD, 3421 posts
3 Sep 2025 9:17am
Mark _australia said..
Agreed

but if there are some scratches I'd say re- clear the whole thing then sand as that will also fill the scratches


Mark, what clear coat product do you recommend?
Mark _australia
Mark _australia
WA
23691 posts
WA, 23691 posts
3 Sep 2025 12:50pm
I assume you mean rattle can for ease

it was Dulux Duramax flat clear but they recently changed. They assure me same formulation and it appears to be so. Good match for most things.
it's now just called Dulux Spray (how original)

clear flat.
white can.
Paducah
Paducah
2843 posts
2843 posts
12 Sep 2025 2:06am
Sanding day today. Admittedly, this wing is about three yrs old (so current production may be better) but, while it looks good, the factory finish is mediocre at best. The clearcoat hides a lot of roughness. When you start to sand, the weave underneath quickly appears in the difference between sanded and unsanded. It's not a very fair surface. The trailing edge is pretty thick as well.

I have a few friends who use this wing, 950, and it's overall size and design are good. Just surprised that, for something not at the budget end of the spectrum, it's not better. It will be soon, though.
Grantmac
Grantmac
2388 posts
2388 posts
12 Sep 2025 5:40am
If you think SAB is bad you should see how the Gong HA V1s are built ??
Paducah
Paducah
2843 posts
2843 posts
12 Sep 2025 9:04am
Grantmac said..
If you think SAB is bad you should see how the Gong HA V1s are built ??



We should coin a new term: FSO (Foil Shaped Object)
The spotted areas are flat spots on the top curve of the foil where just part of the weave is sticking up enough to have the clearcoat sanded. This is after 320/400/1000. The flats can be felt while sanding across the curve. As this isnt a wing going to be used in a performance context and just a favor to a friend, called it good enough and quit for the day.

Reality is I'll probably fill these in. Hate doing anything less than right.


Grantmac
Grantmac
2388 posts
2388 posts
13 Sep 2025 5:05am
I've got a Balz 909 needing a little touch up on one tip and leading edge which I'm hoping I can accomplish with high build primer on the LE and some graphite thickened epoxy on the tip. We'll see.
Please Register, or first...
Topics Subscribe Reply