Nylon 6,6 has a high molecular weight and therefore high viscosity. It has good abrasion resistance when compared to nylon 6 and better resistant to both high and low temperatures. Compared to nylon 12, it is more brittle at low temperatures. Its higher moisture absorption gives it better impact resistance than nylon 12 when wet. It’s relatively difficult to process because of its exceptionally low melt viscosity.

Nylon 6,6 is made of hexamethylene diamine and adipic acid. The diamine and the diacid each donate six carbons to the polymer chain, giving nylon 6,6 its name.

Specific Gravity	0.0365 lb./in. 3 (1.01 g/cc)	0.0423 lb./in.3 (1.17 g/cc)
Melting point	401°F (205°C)	432°F (222°C)
Glass transition temperature	Not Applicable	Not Applicable
Tensile strength at break	3630 psi (25 MPa)	13000 psi (89.6 MPa)
Elongation at break	315%	400%
Hardness durometer (Rockwell R)	120	120
Hardness durometer (Shore D)	60	80
Water absorption @ 24 hours	1.3%	1.7%
Sterilization	Gamma radiation

This material data sheet is presented for reference only. For a specific application and environment, characteristics and performance may vary. Product design and suitability for use are the sole responsibility of Microspec’s customer. Microspec strongly urges customers to consult with the material manufacturer.