Before you decide, consider using RENY for the application!

RENY - Polyamide MXD6 (PAMXD6) High strength and rigidity Super low thermal expansion Low water absorption One of the most successful applications for RENY is in door mirrors and stays, noted for their high anti-vibration performance in various driving conditions. RENY holds a majority share in this field - not only in Japan, but also in the US. Several automobile manufacturers have also been using RENY for parts under the hood, satisfying performance, reliability and weight reduction requirements. Consider RENY...an engineering plastic that is one of the best alternative to metal and other materials for automobile applications because of its high rigidity and excellent dimensional stability. As various new applications are identified for office automation equipment, electric goods, construction materials and more, MEP believes that the use of RENY will continue to grow. Application photos
MEP Reny Elec. & Precision	MEP Reny OA	MEP Reny Auto: Mirror& Lamp	MEP Reny Auto: Engine& Fuel	MEP Reny Construction

Outstanding Features: Excellent mechanical strength and modulus over a wide range of temperatures Superior to commodity polyamides in dimensional stability and mechanical strength due to low water absorption Low thermal expansion coefficient, equivalent to that of metal alloys Highly resistant to oils and organic solvents Low mold shrinkage and low warpage Good surface finish even in highly filled grades

Grade information
Available in many grades, Reny is applicable as an engineering plastic for use in a broad range of fields. Mitsubishi Engineering-Plastics provides the Reny grade most suitable for your application.

Application		Grade	Features	Notes
General Purpose		1002F,1002H		GF Reinforced
		1012F,1012H	High Strength, High Modulus
		1022F,1022H	High Strength, High Modulus
		1027	High Strength, High Modulus,
			Weather Resistance
		1032	High Strength, High Modulus
		2031	High Cycle, Excellent Appearance	GF/MF Reinforced
		2041
Flame Retardant		1501A,1501AH	UL94V-0(1/16")	GF Reinforced
		1511A,1511AH	UL94V-0(1/16") High Modulus and Heat Resistance
		1521A,1521AH	UL94V-0(1/16") High Modulus and Heat Resistance
		2505	UL94V-0(1/16")	GF/MF Reinforced
		2502A	UL94V-0(1/16") Low Warpage
High-performance Grades	High Impact	1301		GF Reinforced
		1313
		6301		Unfilled
	Coating	1722F	High Strength, High Modulus	GF Reinforced
	Low Warpage	2620		GF/MF Reinforced
		2686	Super-low Warpage	GB Reinforced
	Chemical Blowing	1802		GF Reinforced
	General	4001		GF Reinforced
	Electroconductive	4011	High Strength, High Modulus
	Flame Retardant	4501		GF Reinforced
	Electroconductive	4511	High Strength, High Modulus
	Low Friction	F34	Contains PTFE	Potassium Titanate Whisker
		W38
		G07	Contains PTFE	GF Reinforced
		G16	Contains PTFE	CF Reinforced
	Plating	E40,E59
	Antivibration	N252		GF/MF Reinforced
CF Reinforced Grade		C31,C32,C33,C36		CF Reinforced
Polymer Alloy		NX5000 Series, NXG5000 Series		PAMXD6/PPE Alloy
		SG Series		PAMXD6/PPS Alloy
		PG Series		PAMXD6/PP Alloy
Other		Customer-specified Grades

Predrying

Reny is supplied in a special bag that prevents moisture absorption during storage and shipping. Basically, predrying is not necessary prior to molding if the bag has just been opened. However, Reny absorbs moisture gradually when exposed to air, so the predrying process should be applied to pellets that have been left unused at least one hour after opening the bag. A hopper-dryer is recommended during the molding process. Typical drying conditions are as follows: Drying Method Temperature Time Note Trys in drying ovens 80 At least 12hrs. 30mm maximum deoth of pellets Note: Black pellets can be dried for at least 4 hours at 100-110.

Processing conditions

PAMXD6, Reny's base polymer, has a comparatively distinct melting point at 243 . For sufficient crystallinity and a glossy appearance, mold temperature should range from 120 to 140. The standard temperature range of melted PAMXD6 during injection molding is 250 to 280 . The temperature of the resin must be adjusted to produce proper filling in the mold but should not exceed 300 to prevent thermal decomposition. Standard surface temperature of the mold is 120 to 130. However, when the wall thickness of the molded parts is less than I mm, a mold temperature of 120 to 130 may be insufficient to produce the required crystallinity. In that case, molded parts should be annealed for at least one hour at 130 in an air oven.

Flowability
The following graphs show the dependence of spiral-flow length on stock temperature and the relationship between bar-flow length (L/t) and depth of cavity.
Mold temp : 130,Injection pressure: 98MPa Shape of spiral-flow: 6mm semicircle	Gate size: 1mm , Stock temp : 273, Mold temp : 130 Width of bar-flow cavity: 20mm

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