High strength (470,000 PSI) carbon
fibers are used as reinforcement
in high performance structural
composites for aircraft applications,
recreational and industrial
products. Carbon fiber filaments
are finer than a human hair. These filaments are bundled together to
make a fiber of 3,000, 6,000 or 12,000 filaments which is called a
“tow”. The tow is sized with an epoxy compatible material
to improve
the handling characteristics. It is then wound on a cardboard core
holding from 4 to 6 pounds of fiber. 1 Lb. spool.
It appears that the 6K tow will prove most practical for homebuilding
applications. This size will be available in the small units shown. The
3K and 12K sizes are offered in full spools only. The 3K tow is used
primarily by weavers. The 12K is difficult to wet out but can be done
by diligent brushing. |