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Nylon Resin U-polymer TERRAMAC Unilate Elitel
Grade List
General Properties
Molding Condition

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[UNITIKA TERRAMAC]

Molding Conditions for TERRAMAC resins

Injection molding conditions
<Basic and high-impact grades:TE-2000,TE-1030,TE-1070>
Cylinder temperature (°C)
Limit
temperature (°C)
Mold temperature (°C)
(actual surface temperature)
Back pressure
(kgf/cm2)
(gauge pressure)
Nozzle
Front
Middle
Rear
180~220
180~220
180~220
130~170
240
10~30
5~15
* Use of chillers is recommended for controlling the mold temperature. Higher mold temperature may results in troubles in molding such as whitening, improper release of the molded products, and others.
 
<Heat-resistant and high-durability grades:TE-7003,TE-8303,TE-8003G30,TE-8005M,TE-8005MT9>
Cylinder temperature (°C)
Limit
temperature (°C)
Mold temperature (°C)
(actual surface temperature)
Back pressure
(kgf/cm2)
(gauge pressure)
Nozzle
Front
Middle
Rear
190~210
190~210
180~200
150~170
240
100~110
5~15
* Use oils, pressurized water, heater, or others to control the mold temperature, and make sure to keep the mold temperature (actual surface temperature) in the range of 100 to 110°C. The temperature control is very important for providing the molded products with higher crystallinity and greater heat resistance.

<Alloy grades:TDA-8070M,TAA-8070,TCA-8070MN>
 
Cylinder temperature (°C)
Limit
temperature (°C)
Mold temperature (°C)
(actual surface temperature)
Back pressure
(kgf/cm2)
(gauge pressure)
 
Nozzle
Front
Middle
Rear
TDA-8070M
200~230
200~230
200~220
190~210
250
50~70
5~15
TAA-8070
210~230
200~220
200~220
190~210
250
50~70
5~15
TCA-8070MN
210~230
210~230
200~220
200~220
255
40~70
5~15


Extrusion molding conditions
<Extrusion grades:TP-4000,TP-4030>
Cylinder temperature(°C)
Limit
temperature
(°C)
Coolant
temperature
(°C)
Distance
between
die and
sizer (cm)
Drawdown
rate
Sizing
method
Die
Meter
Compressor
Supplier
150~180
160~200
160~200
150~180
240
8~15
2~5
0.87~0.92
Dry
vacuum
* The above conditions are determined with reference to specified contour extrusion molding. Depending on the shape of an extruder and extruded article, the conditions may change considerably.

Foam sheet molding conditions
<Foam sheet grades:HV-6250H>
Foam extrusion molding conditions
Cylinder temperature(°C)
Cooling zone temperature(°C)
Die temperature(°C)
Front
Middle
Rear
190~220
190~230
180~200
170~200
150~180

Vacuum and pressure molding conditions
Pre-heater
temperature(°C)
Sheet temperature
(°C)
Pre-heating time
(second)
Pressing time
(second)
Die temperature
(°C)
150~280
80~140
4~16
4~16
20~120
* The above conditions are determined with reference to foam sheet molding using CO2 gas. Depending on the type and amount of a foaming agent, the conditions may change considerably.
Increasing the die temperature to 110°C or higher allows crystallization in the molding process.
Molded articles fully crystallized are resistant to heat of 100°C or higher. In this case, longer pressing time improves crystallization.


<Other precautions>


Ο Prevention of moisture absorption during molding

TERRAMAC resins are delivered as dried and packed in an aluminum moisture-proof bag. However after unpacked, the resins may absorb moisture, leading to decrease in the molecular weight of resins during molding. Accordingly, use hopper driers for prevention of moisture absorption during molding.
To stabilize molding conditions, use of a dehumidifying drier is recommended. Use up all the material contained in a bag, transfer the remaining material to a moisture-proof can, or fold and seal the opening of the bag with a tape
.

Ο Drying

The resins left unpacked may contain water by absorbing moisture. Re-dry these resins.
TE-1030, TE-1070,TP-4030: Use a dehumidifying drier at 80°C for 5 hours or more
TE-2000, TE-7003, TE-8303, TE-8003G30, TE-8005M, TE-8005MT9, TP-4000, HV-6250H :At 100°C for 5 hours or more
(use of a dehumidifying drier is recommended)

Ο Recycling use of sprues, runners, and the like
Sprues and runners should also be dried, except they are processed inline.
Dry these resins under the following drying conditions.

TE-2000, TE-1030, TE-1070: Use a dehumidifying drier, at 70°C for 8 hours or more
* Recycled material, including molded products, sprues, and runners of the above grades, are resistant to heat of approx. 60°C. Thus, the blocking phenomenon is expected during drying. Mix virgin pellets and recycled material, then dry them.
TE-7003, TE-8303, TE-8003G30, TE-8005M, TE-8005MT9: At 100°C for 8 hours or more
(Use of a dehumidifying drier is recommended.)
* Recycled material molded at the recommended die temperature has heat resistance. Thus,the above remarks for the basic and shock-resistant grades need not be followed.
In any case, automatic return in molding is recommended.

<Precautions about this information>


• The data above are typical values of test pieces determined by our tests, and do not guarantee the properties of resins in a particular application.
• In applying your products to individual applications, take into account legal regulations, industrial property rights, product specifications, your own self-imposed standards, and the like, and make sure to confirm the properties of your products by conducting product tests according to the purpose of your use.
• The data and descriptions above are prepared on the basis of the documents, information, and data currently available, and may subject to change without prior notice based on new findings.
• Read carefully the material safety data sheets (MSDS) of the resins in advance to handling.
• Contact us in advance, if you wish to use these resins in particular applications, such as medical devices, containers or packaging of foods, kid's playthings, and others.

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