"S" refers to "Structural", "E" refers to "Electrical" - E-glass is
designed for use in printed circuit boards. It contains boron compounds
which make it (for the most part) self-extinguishing when removed from a
flame source. S-glass exhibits +/- 40% less thermal expansion than
E-glass. S-glass is stronger by about 40% in tension and compression.
These numbers are off the top of my head but I'm fairly certain they're
close. Also, these refer to the two types of glass as created in the
near-perfect world of sheets created under pressure and cured by uniform
heat. Cold hand layups will cause your mileage to vary. In any case,
either one is likely to exceed the mechanical properties of dynel-epoxy
by a good margin.
Chris
On 2/24/2018 5:15 PM, Adam via KRnet wrote:
Is there any reason why we can not, or should not use S-glass over E-glass and
vise versa, excluding cost?
_______________________________________________
Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/.
Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change
options.
To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
