Foam Cores?

For discussions related to ski/snowboard construction/design methods and techniques.

Moderators: Head Monkey, kelvin, bigKam, skidesmond, chrismp

Post Reply
User avatar
backyardskier
Posts: 139
Joined: Sat Nov 05, 2011 10:26 am

Foam Cores?

Post by backyardskier »

Just found this stuff thinking about testing it for cores, what do you guys think?

http://www.signfoam.com/signfoam.html
chrislandy
Posts: 70
Joined: Tue Feb 17, 2015 2:37 am
Location: England/France
Contact:

Post by chrislandy »

I use a foam for the wakeboards but it's marine closed cell stuff, not sure how it compares to this though.

The material I use is very easy to work with, I prefer it over wood. The main consideration with using a foam is that it typically doesn't provide much bending resistance or stiffness to the laminate so the weight saving you get from the foam is offset slightly by the extra reinforcement needed to reach the bending strength and the stiffness of the ski/board
24Dave
Posts: 124
Joined: Mon Oct 03, 2011 2:14 pm

Post by 24Dave »

CHris, It's too heavy at 10lbs, balsa can be lighter and is much stronger. start googling Divinycell, last a foam, these are lighter 2 to 4, 6 pounds a cubic foot, well known about in the composites industry and probably what rossignol has used for so long. Sign foam is probably not engineered for being part of a light structural laminate.
chrislandy
Posts: 70
Joined: Tue Feb 17, 2015 2:37 am
Location: England/France
Contact:

Post by chrislandy »

Yup, just converted mine (80kg/m3), mine is just under 5lb/cu ft it's the lightest structural foam I've found (Gurit M series), they do a lighter version but the properties are significantly lower
User avatar
backyardskier
Posts: 139
Joined: Sat Nov 05, 2011 10:26 am

Post by backyardskier »

so this stuff would be better for skis?
http://www.jamestowndistributors.com/us ... lain+Sheet
24Dave
Posts: 124
Joined: Mon Oct 03, 2011 2:14 pm

Post by 24Dave »

yep, but Jamestown prices on everything are a bit silly. Try http://fiberglasssupply.com/Product_Cat ... rials.html
twizzstyle
Posts: 2204
Joined: Tue Mar 07, 2006 8:25 pm
Location: Kenmore, Wa USA

Post by twizzstyle »

I bought this stuff from Kelvin a few years back:

http://www.blankslateskis.com/foam-core ... -x-1854mm/

No idea what exactly it is, but it's awesome, and those are my favorite skis.
RYM Experimentals
Posts: 85
Joined: Fri Dec 21, 2012 8:57 pm
Location: Fall City, Wa.
Contact:

Post by RYM Experimentals »

I tried a couple foam core snowboards and broke both of them. If you find a good product let me know, maybe Ill try again.

-Cheers
www.rymexp.com
On the edge of control is a good place to be!
Post Reply