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Plastics & Elastomers
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Styrolution Styroflex® 2G 66 SBC

Technical Datasheet | Supplied by Styrolution
Description: Styroflex® 2G 66 is a styrene-butadiene block copolymer (SBC) with the properties of a thermoplastic elastomer (S-TPE). Styroflex® 2G 66 is the only S-TPE with a styrene content of at least 60 % styrene and a rubber fraction of at least 70 %. Characteristic properties of Styroflex® 2G 66 are therefore: high transparency, excellent thermostability, very high elongation at break and high resilience. Styroflex® 2G 66 is more polar than comparable SBS or SEBS grades and offers a good printability.Applications: Styroflex® 2G 66 is a very versatile material, suitable for a variety of applications: In multilayer (coextruded with PE-EVA), thin-gauge film for the supporting layer, Styroflex® 2G 66 is used e.g. for packaging fresh meat. Styroflex® 2G 66 is also used for the modification of styrenic polymers; e.g. blended with high impact polystyrene it improves the toughness and the stress cracking resistance (ESCR) significantly. Styroflex® 2G 66 is also suited for two-component injection molding, especially with polystyrene, to which it has excellent adhesion. Styroflex® 2G 66 and compounds based on Styroflex® may be used for conventional injection molding (eg. of toys) and the extrusion of profiles, flexible tubing and soft foams.
Product Type
SBC or TPE-S (Styrenic Block Copolymer) > SBC
Product Status

Styrolution Styroflex® 2G 66 SBC Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Elongation at Break
> 300 %
Nominal, 50mm/min; ISO 527-1/-2
Impact Strength, Unnotched Charpy
< 9999 kJ/m²
(@Temperature -30 °C)
ISO 179/1eU
Impact Strength, Unnotched Charpy
< 9999 kJ/m²
(@Temperature 23 °C)
ISO 179/1eU
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