sunova flow self destructs

Thanks for the info mate thats a real sunova bitch

Never yet seen the core melt, that takes about 100deg or so. If yours has a melted core has it been repaired and some clown used old school resin, or applied pads over a crack, anything that let solvent in like a rub down with acetone over a cracked area?

But yes they will delaminate due to internal air expansion. Bit rough to bag out Sunova.

No I'm not bagging sunova I'm bagging eps foam ,I love sunova boards ,I have been using them for past 3years and was very happy customer. .i named them cause its what happened to me .it no Chinese pop out ,u get what u pay for .its a issue that's is happening to most brands .why don't they solve the problem re engineer eps to have high res to heat all I want is to spark up a healthy discussion on an issue that does need attention..we should be able to go away with our boards on roof and not have to worrie about our boards destroying itself if you get delayed,stuck in traffic ect as for fail temp of eps ??? It's seems some say 60 deg some say more who really knows some blanks might not have been as heat res .its bit of cop out I think .solve the problem

No I'm not bagging sunova I'm bagging eps foam ,I love sunova boards ,I have been using them for past 3years and was very happy customer. .i named them cause its what happened to me .it no Chinese pop out ,u get what u pay for .its a issue that's is happening to most brands .why don't they solve the problem re engineer eps to have high res to heat all I want is to spark up a healthy discussion on an issue that does need attention..we should be able to go away with our boards on roof and not have to worrie about our boards destroying itself if you get delayed,stuck in traffic ect as for fail temp of eps ??? It's seems some say 60 deg some say more who really knows some blanks might not have been as heat res .its bit of cop out I think .solve the problem

If your whinge is about EPS, then take Sunova out of the title.
Every time somebody googles it now they see that Sunova self destructs. I reckon thats a bit rough.
Further it didn't self destruct, u applied a ****eload of heat.

Now - EPS would not melt so I'd like to see you back that up with a pic or something.
I think what you really meant was your board went pop? and so you think EPS sucks compared to old school PU construction?

ALL boards with an EPS core don't like being in extreme heat (or an aeroplane) as core expansion will cause delam. You can't say some EPS cores may be less heat resistant. They are all the same.

If you want a 15kg SUP then go for it..... go back to PU construction. Else stick with the proven new construction but be aware you can't abuse it.....

Get one with a vent if you want to have it on the roof in 45 deg (well 2 vents really for a SUP, and not the Goretex things unless you want to wash the vent every time and replace them religiously very year)

Get a white one.

And BTW some "chinese popouts" get a bad rap from the early experience from with cheap surfboards. However there are also ones moulded with A1 materials and with tonnes of pressure etc so they are tougher for the same weight than you'd get in a custom board.
Chinese popouts is a derogatory term from old surf purists but they might need to get with the program....

I'm waiting for the you should be trying xxxx foam. It bla bla bla's and sucks your xxxx at the same time.

It was in the sun to long. It's Australia, land of melting thong. Move along . Nothing is radical free.

I would be interested to see picture s of the board .
i would say it must of got real hot ..as the ply and glass I thought would hold its shape .

do you wash your board off ,it my have been a built up of salt on you air breather .or it packed it in .
sorry for your board mate .

We could try a little experiment if you like.

Try and determine the melting point of any undamaged foam in your board. And I'll do the same for samples of varies ages and densities of scraps I have lying around in the shed. That way we can tell for sure if your board has an odd low melting point foam in it.
Later today when I get a bit of time, I'll use an old kettle to boil water and see if any of the foam melts.
My feeling is that it will get soft and pliable but not actually melt.
I'll be back later with any results.

When you said melted foam, I assumed the board had opened up and you could see the melted foam inside.
From the pics, that board is still intact, and as you say. it's hard to see any damage.
Is it depressed where the straps go? Epoxy and eps both get soft with heat, strap pressure could then deform the board.

Yep, silver reflects heat, but still lets some through. If there is no airflow the heat can slowly build up inside. The board is probably better off in the open air, especially if it's painted white, although the light balsa colour should reflect heat OK

Notes to self:
(1) Don't buy a board from SUP Island if they think the "ply and glass" should hold together a styro core board thru anything.
That's a pretty normal garden-variety delam for major heat stress on an EPS core board. I just saw windsurf boards (far better construction than any SUP) do exactly the same oooh 3 times in last year. But I've had mine in extreme heat plenty with the vent open just fine. VENTING!!!!

(2) Don't believe posters who say the core has "melted".

(3) Buy a Sunova, cos after this unfair slamming they deserve a sale.


Notes to OP:

Heat causes expansion.

The unaffected areas are normal - it had to warp somewhere and didn't warp where the straps were.
It didn't at the tail possibly due to tail patch glass and also in a narrower area it is stiffer (delam normally in the middle 60% of the board.) Adhesion to a stringer, boxes and rails can stop the delam in those areas.


I would be sad also, but EPS makes a great light product and you just need to treat it right. Like you service a race car/bike more than a postie bike that will run forever with olive oil in the sump.

I saw the same model at a local shop with about 60% of the bottom delaminated just as this one, just one big bubble.
Dont know of the boards history or what may have caused it.
I was told it was replaced under warranty.
Having said that, I've had two Suniva boards that I couldn't fault and have a third on order at the moment.

I might have to retract my statements if they are now Goretex and it was two of them seen to major delam...

^^^But it doesn't happen more than I made out
there are SUPS on the roof in 40deg all over australia every day.
You made it sound like Sunova was ****ty construction based on one board popping in the heat and that's rubbish

You also said EPS is a useless construction method and that's clearly rubbish as its been used for 20-30yrs in windsurfing and 10yrs plus in SUP.

BUT NOW we hear about a second Sunova popping and also they have changed to Goretex vents well now there is a story in it perhaps. Recently saw a board implode when it hit cold water as it didn't vent.
So I did say I'd retract my statements if there is a higher failure rate in Sunova, especially if it is after they changed vents. I hate Goretax.


BTW, I don't have Sunova, never even used one, never even picked one up. I am not defending them, I was responding to your initial post that bagged EPS construction and didn't need Sunova in the title if u r talkinga bout EPS and how you hate it - I reckon.

You can have issues putting wet boards in bags. I think you are better off having the board on the car unbagged or better still putting a soft board on top of the sup to provide some shade. It works for me.