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EMS-CHEMIE (North America) Inc.2060 Corporate Way, P.O. Box 1717Sumter, SC 29151, USAPhone 803-481-6171, Fax 803-481-6121www.emschem.com, welcome@us.emschem.com

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Product Data Bulletin

Grilamid TR 90

Grilamid TR 90 is a transparent polyamide withgood heat resistance and excellent fatigue

behavior. Grilamid TR 90 also exhibits lowmoisture absorption and dimensional stability.Grilamid TR 90 was developed for use in filterbowls, eye glass frames, tooth brushes andoptical fiber containing cables. It may also beconsidered for a variety of consumer andindustrial applications in which chemicalresistance, transparency and toughness aredesired.Because Grilamid TR 90 contains no plasticiserand resists cosmetic chemicals and perspiration, itcan enhance the design and performance ofpersonal products such as sport and safety

spectacle frames. Grilamid TR 90 is NSFStandard 61 Listed.

Processing

Grilamid TR 90 is supplied ready for processingin free-flowing pellet form, pre-dried to 0.1%moisture and packaged in multiwall, foil-lined,

moisture-proof bags containing 25 kg net. Foroptimum processing and parts quality, the resin

should be protected from exposure to a humidenvironment prior to processing. If hopper resi-dence times are likely to exceed two hours, use ofa hopper dryer operating at 176F/80C isrecommended.

If the material is otherwise exposed to a humidenvironment for more than two hours, drying isrecommended to ensure that the moisture contentdoes not exceed 0.1% for processing. Use of avacuum dryer operating at 230F/110C for 3-4hours is strongly recommended. A desiccantdryer may also be used, but to avoid oxidation of

the material and consequent discoloration, tem-peratures should be held below 176F/80C, withdrying times between six and ten hours. Forlonger periods, overnight for example, desiccantdrying is acceptable at temperatures notexceeding 158F/ 70C.

Processing Guidelines

Injection Molding Extrusion

Melt Temperatures1-2-3

FC

520 - 535270 - 280

Barrel Temperatures FC

482-500-500250-260-260

Mold Temperatures FC

17680

Clamp Temperature FC

500260

Injection SpeedInjection Pressure

MediumHigh

Die Temperatures1-2-3

FC

500-500-500260-260-260

Cooling the feed zone at the hopper is recommended.

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This Technical Data Sheet is presented in good faith, based on currently available information, and is accurate to the best of our knowledge.It does not replace the precautions, directions and information contained on the product label. The user is solely responsible for: 1)following all instructions, recommendations and directions; 2) deciding whether this product or the information about this product issuitable for its use; 3) providing all information about this product to any subsequent users; 4) meeting all applicable health and safetystandards and regulations; and 5) ensuring that no patent infringement occurs.

NO LIABILITY IS ASSUMED AND NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, ARE MADE WITH RESPECTTO THE INFORMATION OR THE PRODUCT TO WHICH THE INFORMATION REFERS.

Grilamid7, Grivory7, and Grilon7are registered trademarks of EMS-CHEMIE.

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Preliminary Property Data: Grilamid TR 90

General Properties

Glass Transition Temperature DSC F/ C 311 / 155

Specific Gravity ASTM D792 --- 1.01

Moisture Absorption 24hr Immersion

73F/23C/50%RH in air73F/23C in water

ASTM D570 %0.401.503.30

Linear Mold Shrinkage (F/T) EMS % 0.65 / 0.80

Mold ShrinkagePerpendicular

Parallel

ASTM D955 in/in0.0100.010

Refractive Index DIN 53491 - 1.510

Light Transmission ASTM D1003 % 92

Thermal Properties

Heat Deflection Temperature 66 psi (455 Kpa) 264 psi (1820 Kpa)

ASTM D648 F/C260 / 127235 / 113

Coefficient of LinearThermal Expansion

DIN 53752 in/in Fcm/cmC

4X10-6

9X10-6

Thermal Conductivity @ 68F/20C EMS W/m/C 0.16

Heat Capacity @ 68F/20C EMS J/g C 1.80

Maximum Usage Temperatures Long Term in Air Short Term in Air

EMS F/ C176/80

212 / 100

Mechanical Properties Dry-As-Molded Conditioned

Tensile Strength ASTM D638 psi (MPa) 7,800 (54) 8,300 (57)

Elongation at Yield/Break ASTM D638 % 10 / 150 10 / 150

Flexural Modulus ASTM D790 psi (MPa) 222,000 (1,530) 229,000 (1,580)

Flexural Strength ASTM D790 psi (MPa) 12,600 (87) 11,900 (82)

Notched Izod Impact Strength ASTM D256 ft-lb/in (J/m) 1.0 ( 50) 2.0 ( 100)

Hardness Shore D-scale 84 84

Electrical Properties

Volume resistivity DIN 53481 - cm 1012

Dielectric strength DIN 53481 kV/in (kV/mm) - 864 (34)

Dielectric Constant @ 100 HZ IEC 250 - 2.80

Dielectric Factor @ 100 HZ IEC 250 - 0.0011

Comparative Tracking Resistance DIN 53480 Volts 600+ 600+

December 13, 2000