View topic - What is S-Glass / E-Glass

Canadian Canoe Routes

What is S-Glass / E-Glass
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Author:  Prospector16 [ April 16th, 2019, 7:36 pm ]
Post subject:  What is S-Glass / E-Glass

I see this mentioned a lot and have googled a few times but can never seem to find a good explanation within the context of canoes. All I can tell is that it seems to be just variations of fiberglass - I'm really not sure beyond that what makes one type special vs another type.

Author:  Niagara 1 [ April 16th, 2019, 7:55 pm ]
Post subject:  Re: What is S-Glass / E-Glass

Looks to me like it a chemical makeup variation with the S glass being stiffer (and more expensive) according to other threads I have seen from a few googly searches.
I would imagine manufacturers may use one or the other depending on the canoe being produced (stiff vs more 'flex') and budget considerations.
Sorry that's all I got.

Author:  littleredcanoe [ April 16th, 2019, 8:07 pm ]
Post subject:  Re: What is S-Glass / E-Glass

go to properties
Strength is key. Imagine canoe vs rock. Which would you prefer?

Author:  Donomemee [ April 16th, 2019, 8:27 pm ]
Post subject:  Re: What is S-Glass / E-Glass

Check out Nick Schade’s The Strip Built Sea Kayak and Ted Moore’s Canoecraft if your thinking about a cedar boat.
Nick describes S Glass as stronger and E Glass as the common type.

Author:  recped [ April 17th, 2019, 12:45 am ]
Post subject:  Re: What is S-Glass / E-Glass

S-glass is theoretically stiffer and stronger than e-glass, it's more expensive which is a consideration is you are using a large quantity but for patches, skid plates the price difference really doesn't matter.

I've been using s-glass for repairs (patches) and skid plates for a couple of years, the results seem to be better than the alternatives but I want to add the dynel for high wear situations like skid plates.

There is an old discussion regarding use of s-glass for surfboards here:

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