Songhan Plastic Technology Co.,Ltd.

PolyOne Dynaflex™ G7640-1 (Natural) Thermoplastic Elastomer (TPE)

Category Polymer , Thermoplastic , Elastomer, TPE
Manufacturer PolyOne Corporation
Trade Name Dynaflex™
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF PolyOne Dynaflex™ G7640-1 (Natural) Thermoplastic Elastomer (TPE).pdf
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Material Notes:
Dynaflex™ G7640-1 (Natural) is an easy processing, general purpose TPE designed for a wide variety of applications, including those where FDA compliance is required. - Non-Slip Grip - Overmold Adhesion to Polypropylene - Soft Touch, Rubbery FeelColor concentrates with polypropylene (PP), ethylene vinyl acetate (EVA), or low density polyethylene (PE) carriers are most suitable for coloring Dynaflex™ G7640-1 (Natural). Improved color dispersion can be achieved by using higher melt flow concentrates (with a melt flow from 25 - 40 g/10 min). Typical loadings for color concentrates are 1% to 5% by weight. Concentrates based on PVC should not be used. The final determination of color concentrate suitability should be determined by customer trials. 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™ G7640-1 (Natural)with minimal property losses, provided that the regrind is free of contamination. To minimize losses during molding, the melt temperature should be as low as possible. The final determination of regrind effectiveness should be determined by the customer. The Dynaflex™ G7640-1 (Natural) 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 3 in/sec 1st Stage - Boost Pressure: 175 to 800 psi 2nd Stage - Hold Pressure: 30% of Boost Hold Time (Thick Part): 3 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
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
Melt Flow 3.0 g/10 min

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

@Load 11.0 lb,
Temperature 392 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Shore A 40
10 sec; ASTM D2240
Tensile Strength at Break 3.38 MPa

@Temperature 23.0 °C
490 psi

@Temperature 73.4 °F
Die C2 hr; ASTM D412
Tensile Stress 1.17 MPa

@Strain 100 %,
Temperature 23.0 °C
170 psi

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

@Strain 300 %,
Temperature 23.0 °C
360 psi

@Strain 300 %,
Temperature 73.4 °F
Die C2 hr; ASTM D412
Elongation at Break 520 %

@Temperature 23.0 °C
520 %

@Temperature 73.4 °F
Die C2 hr; ASTM D412
Tear Strength 17.5 kN/m
99.9 pli
Compression Set 11 %

@Temperature 23.0 °C,
Time 79200 sec
11 %

@Temperature 73.4 °F,
Time 22.0 hour
Processing Properties Metric English Comments
Rear Barrel Temperature 160 - 188 °C
320 - 370 °F
Middle Barrel Temperature 177 - 193 °C
351 - 379 °F
Front Barrel Temperature 182 - 210 °C
360 - 410 °F
Nozzle Temperature 193 - 216 °C
379 - 421 °F
Mold Temperature 15.6 - 37.8 °C
60.1 - 100 °F
Back Pressure 0.000 - 0.689 MPa
0.000 - 99.9 psi
Screw Speed 25 - 100 rpm
25 - 100 rpm
Descriptive Properties Value Comments
Agency Ratings FDA 21 CFR 177.1200
Please contact GLS Thermoplastic Elastomers for a copy of the FDA compliance letter.
Appearance Natural Color
Features General Purpose
Good Colorability
Good Flow
Good Processability
Good Processing Stability
Forms Pellets
Generic Material TPE
Generic Name Thermoplastic Elastomer (TPE)
Manufacturer / Supplier GLS Thermoplastic Elastomers
Processing Method Extrusion
Injection Molding
Regional Availability Asia Pacific
RoHS Compliance RoHS Compliant
Suggested Max Regrind 20%
Uses Consumer Applications
Flexible Grips
General Purpose
Soft Touch Applications
Sporting Goods
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