TECAMID® 6/6 GF30 Rod

TECAMID® 66 GF30 is extruded nylon 6/6 reinforced with 30% glass fiber. The reinforcement raises tensile strength to 13,500 psi and tensile modulus to 800,000 psi, with 19,575 psi flexural strength on a 700,000 psi flexural modulus and 17,000 psi compressive strength at 10% strain. Hardness is Rockwell M88 (R117). More useful than any single number is the creep behaviour: the glass loading gives high resistance to deformation under prolonged static load at elevated temperature, with 230°F long-term service, 338°F intermittent and a 499°F melting point. CLTE drops to 2.7 x 10^-5 in/in·°F.

It is used for structural brackets and supports, gears, rollers, pump and valve bodies, machine guarding and precision fixtures across heavy industry, automotive and power engineering, where an unfilled polyamide would bend or relax. Volume resistivity is 1 x 10^14 Ω·cm. Machine with carbide tooling; glass fiber abrades cutting edges and leaves a rougher surface than unfilled nylon. Limitations: notched Izod is 1.25 ft-lb/in and elongation at break is 10%, so it is brittle by nylon standards; exposed glass fiber makes it unsuitable for unlubricated bearing duty against soft counterfaces; and like all polyamides it absorbs moisture and is attacked by strong acids.