Fiberglass Continuous Filament Yarn for the Weaving Industry0 pages

Customer Acceptance Standard

No.
Date:
Supercedes:
Page:

TP-227 LD
01-Aug-12
10-Apr-12
Page 1 of 11

FIBERGLASS CONTINUOUS FILAMENT YARN FOR THE WEAVING INDUSTRY

I.

DESCRIPTION
Fiberglass yarn is a natural, lustrous, white, continuous filament yarn, which is evenly
twisted on supply packages. The yarns are smooth, non-cellular and generally
cylindrical in form. The yarns are made of glass of high stability and durability and are
with the exception of sizing ingredients, inorganic, incombustible and will neither expand
nor contract with moisture changes. The glass composition meets the certification for
“E” glass as defined by ASTM’s D 578-00 Standards Specification for Glass Fiber
Strands. The individual glass fibers do not tend to absorb moisture and are extremely
flexible. The sizing may be burned off the yarn under certain conditions. Weathering
tests have indicated comparatively unlimited stability under repeated cycles of heat,
cold, sunlight, dampness and drying.

II. USE
These yarns are used for further fabrication typically: warping, weaving for glass fabrics
and tapes.

III. YARN NOMENCLATURE
(US Customary System)

Example Product Name
(SI System)

ECD450 1/0 1.0Z
EElectrical glass formulation
CContinuous filaments
DFilament diameter (See Table 1)
450Yards per pound divided by 100
1/0Single yarn end
1.0Z- One turn per inch (TPI)

EC5-11 1X0 Z40
EElectrical glass formulation
CContinuous filaments
5Filament diameter (See Table 1)
11grams per 1000 meters of yarn
1X0- Single yarn end
Z40Twists per meter (TPM)

Throughout history, the actual yardage or Tex of yarn products has often been shifted from the
actual yield provided in the product name. Therefore, the yarn name is only used as a
descriptor. The table in section V. must be utilized to obtain the actual bare glass yield of a
yarn product.

This specification is subject to change without notice.