Polystyrene foam advise

General Discussion
1

Hi  to all,

i am in the process of gathering materials together to make a skimboard. I have made 2 trips to home depot and lowes.

I almost purchased the pink stuff ( extruded polystyrene), but i heard that it degasses and causes the board to delaminate.

IS THIS TRUE?

So i looked for expanded polysyrene and found it in the thickness i need, which is 3/4". The only problem is that it is rated at 1 lb density per sq inch and i heard that i would want either 2 or 3 lbs density per sq inch.

IS THIS ALSO TRUE?

 

just wondering what ppl on here have used and how it has worked out for them.

 

thank you

2

NOt sure where your from… but White Cap has 2# EPS.

Or… you could use the 1# and vacume bag Balsa top and bottom (super strong!).  Use 1/4" Cherrywood for perimeter stringers. 

See the other Alaia thread.  I have a few composite alaia boards on there to give you an idea.

Les

ps - Sorry - - Question 1 - Yes XPS (pink/blue foam) is rumored to delam.

                                     2 - If you glass the 1# with 3x4oz. top and bottom should be fine.  Or balsacomp as I said 

                                           above…lighter and much better looking!