Depends on the colour of the board, I've popped a board with black decal while on the roof racks, lesson learnt??

I was told when I got my Naish that you can leave them out all day no problem, the cheaper ones not so much.

DaveSandan said..
I was told when I got my Naish that you can leave them out all day no problem, the cheaper ones not so much.

Did you get that in writing

micksmith said...

DaveSandan said..
I was told when I got my Naish that you can leave them out all day no problem, the cheaper ones not so much.

Did you get that in writing

Haha. Indeed.

My boards live in my van when there not in the water. The only board that iv had a problem with so far was my Naish Mana popped like a pimple complete write off so now i always take the vent plug out. I purchased a new fanatic prowave a few months ago but didnt realize they dont have a vent in them so am sweating every time i have to park in the open

Brenno said..

micksmith said...

DaveSandan said..
I was told when I got my Naish that you can leave them out all day no problem, the cheaper ones not so much.

Did you get that in writing

Haha. Indeed.

No just ask the guys at The Zu, they leave their demo boards out in the sun all day and say they have never had a problem. I have had mine in the sun for the last 3 days but I am going in and out of the water, yes it gets hot but it has been no problem. I have a silver bag for the car and also no problems, so I guess if you are sensible and don't expect miracles you,will never hav a problem.

It is simple:

Any time in the sun (not cooled by water) damages the board. Damages as in "reduces its life". The problem is by how much is totally random.
It can mean a delamination after only 15mn in the sun, or just that the board will deliminate after 3 years instead of 30 years. No way to know in advance, so play it safe. Your friend can let the board all summer on the beach, but you may put the same model of board and get delam in 15mn...

A trick is to put the board on its rail, so as to minimize the area exposed. But be careful, boards with black rails can begin to "melt" (epoxy becomes soft to the touch), you risk delamination of course, and must let the board cool to use it without risks.

"I reckon the resin or carbon get harder or cures as the board older" yes, an hour at 40C makes epoxy harden as much as a week at 20C. But above some temperature, the epoxy becomes softs (which is why epoxy is harder to sand: if you stay too long on one spot, the epoxy becomes an un-sandable putty). Plus heating and colling means expand and contract, these mechanical movements makes the board age quickly.

My deep board has a fcs handle which if I'm right has a threaded hole with a blank in it ready for a vent screw to be installed if wanted.... I'm not 100% sure if it's just a case of drilling the blank out and screwing plug in but it is defo there ready to be used somehow....

Thanks for all your comments!

It seems like the humble terry toweling bag may be the answer. Anyone had a board fail when it was in terry toweling?

I am always nervous with plugs - I would hate to forget to tighten it before going back into the water.

Interestingly Starboards FAQ states

Is it ok to leave my board out in the sun or on a hot car?

Compared to inferior quality boards, you can feel safe to leave your Starboard out in the sun without fear of popping the outer skin off of the foam (De-lamination). However, harmful UV rays will always affect the look of your board, so it is good to keep your board in the shade when not in use, and protect it from travel dings with a board bag.

I have a travel bag when going on road trips otherwise my boards are stored outside in my "SUP" shed with plenty of ventilation.
also
I have never had to worry about this as it doesn't get that hot here in Dunedin

EPS foam begins to degrade and soften at 70-80 degrees Celsius. Combine that with the air trapped within the foam expanding and the epoxy softening and it's a recipe for disaster.
Whenever you get a delam there's always a thin layer of foam beads bonded to the inside of the skin. It's the bond between the EPS beads that fails in a delam.
Some EPS is way better than others with equivalent density......some of it sucks so much air between the beads you can't get the vacuum suckers on a shaping machine to hold it in place......good shapers send that rubbish back.
Some good advise in earlier posts.....but best to not leave ya SUP out in the sun for too long!