Dynalloy™ GP 7820-70N

Category: TPE , Thermoplastic Elastomer
Manufacturer: PolyOne Corporation
Trademark: Dynalloy™
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: cyN5Dd_DynalloyGP782070N.pdf
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Dynalloy™GP 7820-70N is a thermoplastic elasticity mainly developed for the consumer goods market, such as kitchen utensils, toys, personal and infant care products, etc. This series is modified by hydrogenated styrene block copolymer as substrate.
General Information
Agency Ratings
  • FDA Not Rated 2
RoHS Compliance
  • RoHS compliance
Appearance
  • Natural color
Forms
  • Particle
Processing Method
  • Injection molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 0.978g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A, 10 sec)70ASTM D2240
ElastomersNominal ValueUnitTest Method
Tensile Strength (Yield, 23°C)7.70MPaASTM D412
Tensile Elongation (Break, 23°C)750%ASTM D412
Fill AnalysisNominal ValueUnitTest Method
Apparent Viscosity (200°C, 11200 sec^-1)7.49Pa·sASTM D3835
InjectionNominal ValueUnit
Suggested Max Regrind 20%
Rear Temperature 166 - 188°C
Middle Temperature 177 - 193°C
Front Temperature 188 - 227°C
Nozzle Temperature 182 - 216°C
Processing (Melt) Temp 193 - 227°C
Mold Temperature 16 - 38°C
Injection instructions
Color concentrates with polypropylene (PP), ethylene vinyl acetate (EVA), or low density polyethylene (PE) carriers are most suitable for coloring Dynalloy™ 7820. 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 Dynalloy™ GP 7820 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 Dynalloy™ GP 7820 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
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