Can someone give an explanation on the difference between S-glass and E-glass. Characteristics, prefences, etc. I realize that this may be very basic but I'm sure I'm not the only one that is clueless as to the properties/benefits of them

Mike (Southgate, MI)
If I don't want to, I don't have to and nobody can make me (except my wife) cuz I'm RETIRED!!

Hi Mike,

Here is how it was explained to me. S Glass is a different material than E Glass. They both use the new type resins and this makes the weight of the blanks less when compared to fiberglass blanks. E glass material may be the same as fiberglass material but has the new resin incorporated.

Capt Neil Faulkner

Mike most of the information you seek can be found on a sponsor's site:

[www.seekerrods.com]

Think of the basic difference between then like the difference between the early lower modulus and later higher modulus graphites.

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I don't beleive there is a chemical make up difference between S and E types of glass. The S2 type of glass is stronger by 30 or 40% and has a higher compressive strength. E in E-glass is for Electrical and I beleive was devoloped for insulating. S stands for high strength and is goverment spec type of glass. The way the filaments are made or formed is the difference and gives the S-type it's strength. It's also more $$ then E-glass!! I myself have a few S-glass rods and prefer it over E-glass,it seems to have a softer action IMO.

No such thing as a "softer action." Action is fast, moderate or slow or rated according to AA. "Soft" would relate more to power and that is independent of the material used.

S-glass has a higher modulus than E-glass and therefore for the same power or stiffness it will be lighter because less of it is needed to attain that same stiffness. E-glass will be more durable not only due to the higher strain rate of the material, but because for the same stiffness the structure it comprises will be beefier.

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Thanks guys! Explains a lot!!

Mike (Southgate, MI)
If I don't want to, I don't have to and nobody can make me (except my wife) cuz I'm RETIRED!!

Taper has a significant influence upon the performance of a blank, but ultimately this influence can not be quantified. Given a similar resin matrix is there any way to quantify the modulus differences between E-glass, S-glass, and, say gereration IV graphite? Is there any way to quantify the difference in durability or resistance to fracture between these three materials?