Can someone tell me where I can get some information as to the difference between E-Glass and S-Glass i.e. I know nothing if these type materials and would like to know about them when I see them mentioned in articles. I looked in the "Glossary" and didn't see them mentioned?

Thanks
Bill

S-glass is a slightly higher modulus type of glass fiber. For the same stiffness, it will be a lighter than E-glass.

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Check out this website [rodbuilding_tutorials.webs.com] for information on E-glass and S-glass, you will not be disappointed.

As a quick illustration a 7 ft S glass crankbait blank I use is 3/8 oz lighter than it's E glass version, it's also a livelier rod in use.

As far as I can tell the biggest difference between E-glass and S-glass is that there are a buzillion E-glass blanks for sale, and 3 or 4 S-glass blanks.

When there was only glass, the distinctions were made much of in articles and around docks and clubhouses. Depending on the manufacturer and the exact model of rod, it really came down to what worked in your hand. Good stuff, though, and still much to be said for them as opposed to the newer materials. Remember boron? or Copper?

I know that doesn't definitvely answer the question but I hope it helps.

Uncle Russ
Calico Creek Rods

What Tom said about E and S glass is spot on. I prefer S-glass myself . It's like a E-glass strong rod that is almost as lite as graphite. Kind of the best of both worlds. Some of the best S-glass rods are the old Fenwick Fenglass which was a blend of E and S glass, Lamiglas's old line of S-glass blanks and today IMO Seekers line of S-glass and composites are great rods. Diawa also made some S-glass factory rods years ago that were ok.

E-glass is about 7 to 10 million PSI modulus and S-glass is about 12-14.

Thanks everyone for the replies. Yes the replies are helpful to me. I am a newbie to rod building and read in Tom Kirkman's book on rod building but don't have any idea when I look at a rod blank as to what type it is i.e. I have an old rod which the wooden grips and the reel seat is destroyed but I wondered what type of rod I had in my hands. This rod is made of a milky looking glass and has fibers that come off if you try to shave off the varnish/glue at the old guides. So I thought the material maybe E-Glass or S-Glass. What do you think?

Bill Wilson

The hairiest blanks I've messed with were the solid E glass blanks.