S-glass vs E-glass

[Canotrouge]

One guy to talk to is Andy Philips at Composites Creation, I have a canoe from him, the Expedition, and it as been a tough canoe. 16 feet, tandem that weight 55 pounds. My favourite tandem canoe so far, and I've paddle my share of canoes over the years. It is a "foam" core( they call the material something else than foam) Ho and he's the one making the Ecoee for Andy C.... http://www.compositecreations.ca

 

[Glenn MacGrady]

One guy to talk to is Andy Philips at Composites Creation, I have a canoe from him, the Expedition, and it as been a tough canoe. 16 feet, tandem that weight 55 pounds. My favourite tandem canoe so far, and I've paddle my share of canoes over the years. It is a "foam" core( they call the material something else than foam) Ho and he's the one making the Ecoee for Andy C.... http://www.compositecreations.ca

I know that Composite Creations makes the Echoee, but I don't see any reference to foam on their website either. In the materials lists I see S glass, carbon, Kevlar and flax.

By the kind of foam I wouldn't want in a whitewater canoe, I mean the stuff that Wenonah and other companies use to stiffen flatwater racing type hulls. Once that stuff breaks it can't be repaired. Even if you glass over the broken foam, the foam is still broken and flexing inside the exterior patches.

I suppose "foam" could mean different things. The internal layer of Royalex and Oltonar was an ABS "foam", which was very flexible and resilient and which could return to its original shape after impacts and even wraps. A foamed Wenonah or Bell or my Huki would crack in half under similar impacts.

Back to E glass, which is the topic, I'm sure mass manufacturers do use it to lower cost. After all, they use even cheaper stuff to lower cost like chopper gun fiberglass.

 

[Guest]

I found a discussion regarding S-glass, E-glass and carbon on a surf board building site. A reply by Bert Berger about half way down the thread has some interesting data regarding strength, flex and stiffness.

http://www.swaylocks.com/groups/s-glass-vs-e-glass