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Density 1.13 - 1.15 g/cm 3
Glass transition temperature 54 - 58 °C
Max / Min continuous Service temperature 80 - 140 °C / -80 to - 65 °C
Melting temperature 255 - 265°C
Drying before processing is highly recommended at temperatures 80 - 110 °C for
moisture content > 0.2%.
For Injection Moulding: Melt temp. is 270-300°C and Mould temp. 55-80°C
Extrusion only highly viscous grades can be processed at temperature between
270 to 290°C.
Nylon 6/6 is one of the most versatile engineering thermoplastic having excellent
balance of strength, ductility and heat resistance making it an outstanding
candidate for metal replacement applications. Being more crystalline and ordered
nylon 6.6 shows greater resilience/recovery after compression, higher melting
point, good ductility and slower permeability. It surface is around 12 percent harder
and 20 percent more resilient than Nylon 6.
Nylon 6.6 is very easy to process with a very wide process window allowing it to be
used from complex, thin walled components to large thick walled housings. They
can be easily modified with fillers, fibers, internal lubricants and impact modifiers.
With the use of fiber reinforcements the physical strength can be improved five
times and stiffness can be improved up to 10 times that of the base resin. With
impact modifiers, the ductility of nylon 6.6 is comparable to polycarbonate.
Strengths: High strength and stiffness at high temperature, Self lubricating, good
impact strength even at low temperature (better than PA 6), very good flow for easy
processing, Good abrasion and wear resistance, Excellent fuel and oil resistance,
Good fatigue resistance, Good electrical insulating properties
Limitations: High water absorption degrades electrical and mechanical properties,
requires UV stabilization, high mould shrinkage, low dimensional stability, attacked
by strong acids, bases and oxidizing agents, Pre-drying before processing is
needed, more difficult to process than PA 6, due to its very low viscosity, High notch
sensitivity
Applications: making carpets, tire ropes, brushes, broom bristles, filters, industrial
gear, slide, cams and wheels, friction bearings and plug parts, radiator grilles, air-
intake manifolds, engine covers, relay boxes, electrical circuit breakers,
contactors, connectors, Coil formers, card guides, terminal blocks, low voltage
switchgear, Airbag containers, Stadium seats, photovoltaic connectors, cordless
hammer drills, control modules for washing machines, Door handles, Tubes for
wirings and cables protection, cable ducts, packaging films, furniture fittings, and
medical instruments
32) Polyamide 4.6 (Nylon 4.6) :
Is a semi-crystalline aliphatic polyamide having the highest amide group density,
therefore the highest melting point of all commercial polyamides available. It also
has a very high crystallinity (70%), which keeps the Young's Modulus very high up
to temperatures close to the melting point. This makes PA 4.6 ideal for applications
where components experience (occasionally) very high temperatures, such as in
automotive parts close to the engine or in electronics, where (lead-free) soldering

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