Product Description

Dynaflex® G7980-1001-00 is an easy processing, general purpose TPE designed for a wide variety of applications, including those where FDA compliance is required.

*Made with Kraton® Polymer

Features

-Automotive FMVSS 302

-Soft Touch

-Rubbery Feel

-Overmold Adhesion to Polypropylene

Color

Natural

Processing Method

Extrusion, Injection Molding

Mechanical Properties English SI Test Method
Shore Hardness, 10 sec delay 80 A 80 A ASTM D2240
Specific Gravity 1.18 1.18 ASTM D792, 23/23°C
Tensile Strength 1180 psi 8136 kPa ASTM D412-Die C, 2hrs,23°C
Elongation at Break 610 % 610 % ASTM D412-Die C, 2hrs,23°C
100% Modulus 530 psi 3654 kPa ASTM D412-Die C, 2hrs,23°C
300% Modulus 660 psi 4551 kPa ASTM D412-Die C, 2hrs,23°C
Tear Strength 190 pli 33 kN/m ASTM D624
Thermal/Rheological Properties English SI Test Method
Melt Flow Rate @ 190°C, 2160g 3 g/10 min 3 g/10 min ASTM D 1238
Melt Flow Rate @ 200°C, 5000g 26 g/10 min 26 g/10 min ASTM D 1238
Apparent Viscosity @ 200°C 11170/sec 10900 cPs 11 Pa-sec ASTM D 3835
Aged Properties English SI Test Method
Compression Set, 22 hrs @ RT 26 % 26 % ASTM D 395B
Electrical/Flammability Properties Value Test Method
Flame Rating 1.5 mm HB UL 94
Regulatory Information Yes/No
FDA Yes
Coloring
Color concentrates with polypropylene (PP), ethylene vinyl acetate (EVA), or low density polyethylene (PE) carriers are most suitable for coloring Dynaflex® G7980-1001-00. 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. Liquid color can be used, but mineral oil based carriers may have a significant effect on the final hardness value. Concentrates based on PVC should not be used. A high color match consistency can be obtained by using precolored compounds available from GLS. The final determination of color concentrate suitability should be determined by customer trials.
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® G7980-1001-00 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 0.006 - 0.011 in/in 0.006 - 0.011 mm/mm ASTM D 955
Residence Time
Dynaflex® G7980-1001-00 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 330 - 370 °F 166 - 188 °C
Center 350 - 370 °F 177 - 188 °C
Front 370 - 420 °F 188 - 216 °C
Nozzle 370 - 440 °F 188 - 227 °C
Mold 60 - 100 °F 16 - 38 °C
Molding Parameters English SI
Screw Speed 40 - 100 rpm 40 - 100 rpm
Injection Speed 1 - 3 in/sec 25 - 76 mm/sec
1st Stage - Boost Pressure 350 - 900 psi 2413 - 6205 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