PA46 DSM‑Envalior TW200F6

PA46 DSM‑Envalior TW200F6 Resin

Material Introduction: PA46 DSM‑Envalior TW200F6 is a high‑performance engineering plastic reinforced with 30% glass fiber based on polyamide 46. It features outstanding heat‑resistance, favorable chemical‑resistance, good dimensional stability, excellent flowability and fast‑crystallization performance, balanced impact toughness, mechanical strength and processability. It is widely adopted in multiple demanding industrial applications.

Main Applications

Automotive industry: Key application field for TW200F6, especially for high‑temperature under‑hood components, such as sensors, ignition connectors, ignition coils, gearbox parts, bearings & bearing housings, cable fasteners, intake‑system components.

Electronic‑electrical industry: SMD surface‑mount devices, connectors, circuit‑breakers, winding components, electric‑motor parts and other electrical elements maintaining stable performance under high‑temperature conditions.

Mechanical industry: Gears, bearings and other components requiring high wear‑resistance and high mechanical strength.

Performance Parameters

Performance Category	Test Item	Test Condition / Status	Test Standard	Typical Value	Unit	Remarks & Interpretation
Physical Properties	Density	‑	ISO 1183	1.41	g/cm³	30% glass‑fiber reinforced PA46
	Equilibrium Water Absorption (23℃,50%RH)	‑	ISO 62	2.6	%	‑
	Molding Shrinkage (flow direction)	‑	ISO 294‑4	0.50	%	‑
	Molding Shrinkage (cross‑flow direction)	‑	ISO 294‑4	1.3	%	‑
Mechanical Properties	Tensile Strength at Break	23℃, dry	ISO 527‑2	210	MPa	Dry‑state strength
		23℃, conditioned	ISO 527‑2	115	MPa	Strength after moisture conditioning
		120℃	ISO 527‑2	110	MPa	High‑temperature mechanical property
		160℃	ISO 527‑2	100	MPa	‑
		200℃	ISO 527‑2	90.0	MPa	‑
	Flexural Modulus	23℃, dry	ISO 178	9000	MPa	‑
		23℃, conditioned	ISO 178	5500	MPa	‑
		120℃	ISO 178	5500	MPa	‑
		160℃	ISO 178	5000	MPa	‑
	Charpy Notched Impact Strength	23℃, dry	ISO 179/1eA	12	kJ/m²	‑
		23℃, conditioned	ISO 179/1eA	21	kJ/m²	Toughness increases after moisture absorption
		-30℃, dry	ISO 179/1eA	11	kJ/m²	Low‑temperature impact performance
Thermal Properties	Heat‑Distortion Temperature (1.8 MPa, unannealed)	‑	ISO 75‑2/A	290	°C	Excellent heat‑resistance for SMD application
	Melting Point	‑	ISO 11357‑3	295	°C	‑
	Coefficient of Linear Thermal Expansion (flow direction)	‑	ISO 11359‑2	2.5E‑5	cm/cm/℃	‑
	Coefficient of Linear Thermal Expansion (cross‑flow direction)	‑	ISO 11359‑2	6.0E‑5	cm/cm/℃	‑
	Comparative Tracking Index(CTI)	‑	IEC 60112	300	V	‑
Electrical Properties	Volume Resistivity	Dry	IEC 60093	1.0E+14	Ω·cm	‑
		Conditioned	IEC 60093	1.0E+9	Ω·cm	Resistivity drops after moisture absorption
	Dielectric Strength	Dry	IEC 60243‑1	30	kV/mm	‑
		Conditioned	IEC 60243‑1	20	kV/mm	‑
	UL94 Rating	0.75 mm	UL 94	HB	‑	Non‑flame‑retardant grade
		1.50 mm	UL 94	HB	‑	‑

Injection Molding Parameters

Processing Item	Typical Value / Range	Notes & Explanations
Drying Treatment	‑	Critical operation. PA46 is highly hygroscopic. Sufficient drying before processing is mandatory, otherwise bubbles, silver streaks and strength reduction will occur. Dehumidifying dryer is recommended.
Drying Temperature	80‑120 °C	‑
Drying Time	4‑8 h	Keep moisture content below 0.05% (500 ppm), acceptable upper limit 0.1% (1000 ppm). Dry after opening packaging; drying is unnecessary for unopened bags.
Barrel Temperature	‑	Notice: Melt temperature must never exceed 330 °C, even short‑time residence will cause polymer degradation.
Rear zone (feed zone)	280‑320 °C	‑
Middle zone (compression zone)	300‑320 °C	‑
Front zone (metering zone)	300‑320 °C	‑
Nozzle Temperature	300‑320 °C	‑
Melt Temperature	305‑320 °C	Optimum processing temperature:300‑315 °C for favorable mechanical performance.
Mold Temperature	80‑120 °C	Above 80 °C is preferred. High mold temperature (e.g.120 °C) improves appearance, weld‑line strength and dimensional stability; low mold temperature shortens cooling cycle.
Injection Pressure	‑	High injection speed is required to realize good filling and surface quality. High‑speed injection is essential due to fast‑solidification characteristic.
Holding Pressure	‑	Start adjustment from 50%‑80% of injection pressure. Excessively high holding pressure shall be avoided to prevent internal stress.
Holding Time	‑	Much shorter than PA66 (approx. half). Determine optimal holding time when part weight stops increasing.
Back Pressure	2‑10 MPa	Approx.7.5 bar (0.75 MPa) recommended for homogeneous melt and degassing. Excessive back pressure prolongs plasticizing time and shortens residual glass‑fiber length.
Screw Speed	‑	Medium‑to‑high speed available. For glass‑fiber reinforced grades, adopt lower speed as far as possible to prevent glass‑fiber fracture while meeting plasticizing requirement.

Disclaimer: All above data is for reference only.