Product Description

Dynaflex® G7702-9001-02 is a performance TPE designed for a wide variety of applications.


*Made with Kraton® Polymer

Features

-Low Compression Set

-Excellent Dimensional Stability

-Excellent Heat Stability

-High Resilience

-Automotive FMVSS 302

-Overmold Adhesion to Polypropylene

Color

Black

Processing Method

Extrusion, Injection Molding

Mechanical Properties English SI Test Method
Shore Hardness, 10 sec delay 37 A 37 A ASTM D2240
Specific Gravity 1.10 1.10 ASTM D792, 23/23°C
Tensile Strength 600 psi 4137 kPa ASTM D412-Die C, 2hrs,23°C
Elongation at Break 480 % 480 % ASTM D412-Die C, 2hrs,23°C
100% Modulus 140 psi 965 kPa ASTM D412-Die C, 2hrs,23°C
300% Modulus 400 psi 2758 kPa ASTM D412-Die C, 2hrs,23°C
Tear Strength 120 pli 21 kN/m ASTM D624
Thermal/Rheological Properties English SI Test Method
Apparent Viscosity @ 200°C 11170/sec 10200 cPs 10 Pa-sec ASTM D 3835
Aged Properties English SI Test Method
Compression Set, 22 hrs @ RT 11 % 11 % ASTM D 395B
Compression Set, 22 hrs @ 70°C 22 % 22 % ASTM D 395B
Purging
Purge thoroughly before and after use of this product with a low flow (0.5 - 2.5 MFR) polyethylene (PE) or polypropylene (PP).

Regrind
Regrind levels up to 20% can be used with Dynaflex® G7702-9001-02 can 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.

Shrinkage Properties English SI Test Method
Flow 0.014 - 0.020 in/in 0.014 - 0.020 mm/mm ASTM D 955
Residence Time
Dynaflex® G7702-9001-02 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 Time English SI
Drying is not Required
Molding Temperatures English SI
Rear 340 - 380 °F 171 - 193 °C
Center 380 - 470 °F 193 - 243 °C
Front 400 - 490 °F 204 - 254 °C
Nozzle 420 - 490 °F 216 - 254 °C
Mold 60 - 100 °F 16 - 38 °C
Molding Parameters English SI
Screw Speed 25 - 100 rpm 25 - 100 rpm
Injection Speed 1 - 3 in/sec 25 - 76 mm/sec
1st Stage - Boost Pressure 250 - 1000 psi 1724 - 6895 kPa
2nd Stage - Hold Pressure 30 % of Boost 70 % of Boost
Back Pressure 0 - 120 psi 0 - 827 kPa
Hold Time (Thick Part) 3 - 10 sec 3 - 10 sec
Hold Time (Thin Part) 1 - 3 sec 1 - 3 sec