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PolyOne Dynaflex™ G7940-9 NSFG Thermoplastic Elastomer (TPE)

Category Polymer , Thermoplastic , Elastomer, TPE
Manufacturer PolyOne Corporation
Trade Name Dynaflex™
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF PolyOne Dynaflex™ G7940-9 NSFG Thermoplastic Elastomer (TPE).pdf
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Material Notes:
Dynaflex™ G7940-9 NSFG is a NSF 51 (food equipment) approved material suitable for a wide variety of applications. -NSF 51 approved -FDA (see Notes) -Overmold Adhesion to Polypropylene -Soft Touch, Rubbery FeelDynaflex™ G7940-9 NSFG can be recycled as a filler or impact modifier for polyolefins, or can be recycled by grinding and reintroduction to the molding process. Similar to PP or PE recycling process, if separated appropriately, it can be recycled many times. Municipality waste stream recycle code is 7 which is designated for Other. Please contact GLS Thermoplastic Elastomers for a copy of our Recyclability Compliance letter.Purge thoroughly before and after use of this product with a low flow (0.5 - 2.5 MFR) polyethylene (PE) or polypropylene (PP). Regrind levels up to 20% can be used with Dynaflex™ G7940-9 NSFG with minimal property loss, provided that the regrind is free of contamination. To minimize losses during molding, the melt temperature should remain as low as possible. The final determination of regrind effectiveness should be determined by the customer. Dynaflex™ G7940-9 NSFG has excellent melt stability. Maximum residence times may vary, depending on the size of the barrel. Generally, the barrel should be emptied if it is idle for periods of 8 - 10 minutes or longer. Drying is not Required Injection Speed: 1 to 5 in/sec 1st Stage - Boost Pressure: 150 to 675 psi 2nd Stage - Hold Pressure: 70% of Boost Hold Time (Thick Part): 4 to 10 sec Hold Time (Thin Part): 1 to 3 secInformation provided by PolyOne
Physical Properties Metric English Comments
Specific Gravity 1.18 g/cc
1.18 g/cc
ASTM D792
Viscosity 8800 cP

@Shear Rate 11200 1/s,
Temperature 200 °C
8800 cP

@Shear Rate 11200 1/s,
Temperature 392 °F
ASTM D3835
Linear Mold Shrinkage, Flow 0.013 - 0.021 cm/cm
0.013 - 0.021 in/in
ASTM D955
Melt Flow 2.0 g/10 min

@Load 5.00 kg,
Temperature 200 °C
2.0 g/10 min

@Load 11.0 lb,
Temperature 392 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Shore A 40
40
10 sec; ASTM D2240
Tensile Strength at Break 3.59 MPa

@Temperature 23.0 °C
521 psi

@Temperature 73.4 °F
Die C2 hr; ASTM D412
Tensile Stress 1.24 MPa

@Strain 100 %,
Temperature 23.0 °C
180 psi

@Strain 100 %,
Temperature 73.4 °F
Die C2 hr; ASTM D412
2.03 MPa

@Strain 300 %,
Temperature 23.0 °C
294 psi

@Strain 300 %,
Temperature 73.4 °F
Die C2 hr; ASTM D412
Elongation at Break 580 %

@Temperature 23.0 °C
580 %

@Temperature 73.4 °F
Die C2 hr; ASTM D412
Tear Strength 17.5 kN/m
99.9 pli
ASTM D624
Compression Set 12 %

@Temperature 23.0 °C,
Time 79200 sec
12 %

@Temperature 73.4 °F,
Time 22.0 hour
ASTM D395B
Processing Properties Metric English Comments
Rear Barrel Temperature 166 - 177 °C
331 - 351 °F
Middle Barrel Temperature 177 - 188 °C
351 - 370 °F
Front Barrel Temperature 188 - 204 °C
370 - 399 °F
Nozzle Temperature 188 - 204 °C
370 - 399 °F
Mold Temperature 15.6 - 26.7 °C
60.1 - 80.1 °F
Back Pressure 0.345 - 1.03 MPa
50.0 - 149 psi
Screw Speed 25 - 100 rpm
25 - 100 rpm
Descriptive Properties Value Comments
Agency Ratings FDA 21 CFR 177.1210
Please contact GLS Thermoplastic Elastomers for a copy of the FDA compliance letter.
NSF 51
Appearance Black
Features Good Flow
Good Processability
Good Processing Stability
Recyclable Material
Forms Pellets
Generic Material TPE
Generic Name Thermoplastic Elastomer (TPE)
Manufacturer / Supplier GLS Thermoplastic Elastomers
Processing Method Injection Molding
Regional Availability Africa & Middle East
Asia Pacific
Europe
North America
South America
RoHS Compliance RoHS Compliant
Suggested Max Regrind 20%
Uses Consumer Applications
Flexible Grips
Food Service Applications
Gaskets
Household Goods
Kitchenware
Non-specific Food Applications
Overmolding
Seals
Soft Touch Applications
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