Lexan* Advanced FR Resin
FAR Compliant
Lexan Advanced FR resin series meets the requirements of FAR25.853a and FAR25.853d testing. These resins are available in a range of viscosities for injection molding, extrusion and blow molding. Grades are available in bright white, which may eliminate the need to paint in high-wear areas.

Lexan* Resin ML4588 数据
Extrusion and extrusion blowmolding grade for aircraft applications. Meets FAR 25.853 (60 seconds/30 mils).

Property
TYPICAL PROPERTIES (1)

MECHANICAL	Value	Unit	Standard
Tensile Stress,yld,Type I,50mm/min	650	kgf/cm²	ASTM D 638
Tensile Stress,brk,Type I,50mm/min	630	kgf/cm²	ASTM D 638
Tensile Strain,yld,Type I,50mm/min	65	%	ASTM D 638
Flexural Stress,yld,1.3mm/min,50mm span	990	kgf/cm²	ASTM D 790
Flexural Modulus,1.3mm/min,50mm span	25300	kgf/cm²	ASTM D 790
IMPACT	Value	Unit	Standard
Izod Impact,notched,23℃	73	cm-kgf/cm	ASTM D 256
Instrumented Impact Energy @ peak,23℃	608	cm-kgf	ASTM D 3763
THERMAL	Value	Unit	Standard
HDT,1.82 MPa,6.4mm,unannealed	132	℃	ASTM D 648
PHYSICAL	Value	Unit	Standard
Specific Gravity	1.21	-	ASTM D 792
Melt Flow Rate,300℃/1.2 kgf	2.5	g/10 min	ASTM D 1238
FLAME CHARACTERISTICS	Value	Unit	Standard
FAA Flammability,FAR 25.853 A/B	(A),1,(I)	-	FAR 25.853
Source GMD,last updated:2000/01/04

Parameter Injection Molding	Value	Unit
Drying Temperature	120	℃
Drying Time	3-4	hrs
Drying Time (Cumulative)	48	hrs
Maximum Moisture Content	0.02	%
Melt Temperature	320-345	℃
Nozzle Temperature	315-340	℃
Front-Zone 3 Temperature	320-345	℃
Middle-Zone 2 Temperature	310-330	℃
Rear-Zone 1 Temperature	300-320	℃
Mold Temperature	80-115	℃
Back Pressure	0.3-0.7	MPa
Screw Speed	40-70	rpm
Shot to Cylinder Size	40-60	%
Vent Depth	0.025-0.076	mm
Parameter Extrusion Blow Molding	Value	Unit
Drying Temperature	120	℃
Drying Time	2-4	hrs
Maximum Moisture Content	0.02	%
Minimum Moisture Content	0.01	%
Melt Temperature(Parison)	265-280	℃
Barrel-Zone 1 Temperature	260-290	℃
Barrel-Zone 2 Temperature	260-290	℃
Barrel-Zone 3 Temperature	260-290	℃
Barrel-Zone 4 Temperature	260-290	℃
Adapter-Zone 5 Temperature	260-290	℃
Mold Temperature	60-100	℃
Source GMD,last updated:2000/01/04

• Uncontaminated regrind up to 25% is allowed. 
• Screw configuration affects melt temperature. A low shear, 2.5:1 
• Mold temperatures of 65℃-95℃ (150℉-200℉) produce best surface appearance.
• 15-50 rpm screw speed suggested. Adjust actural rpm for desired output while maintaining desired melt temperature range. Increasing screw speed increases shear heating; use a hand-held pyrometer to measure melt temperature. Adjust barrel temperatures to maintain recommended melt temperature range.

THESE PROPERTY VALUES ARE NOT INTENDED FOR SPECIFICATION PURPOSES.
PLEASE CONTACT US FOR AVAILABILITY IN YOUR REGION.

(1) Typical values only. Variations within normal tolerances are possible for various colors. All values are measured after at least 48 hours storage at 23℃/50% relative humidity. All properties, except the melt volume and melt flow rates, are measured on injection molded samples. All samples tested under ISO test standards are prepared according to ISO 294.
(2) Only typical data for selection purposes. Not to be used for part or tool design.
(3) This rating is not intended to reflect hazards presented by this or any other material under actual fire conditions.
(4) Internal measurements according to UL standards.
(5) Measurements made from laboratory test coupon. Actual shrinkage may vary outside of range due to differences in processing conditions, equipment, part geometry and tool design. It is recommended that mold shrinkage studies be performed with surrogate or legacy tooling prior to cutting tools for new molded article.
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