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Overmolding: TPE Selection

GLS™ Product Line 

There are a variety of GLS™ soft touch TPEs designed to have excellent adhesion to a number of rigid plastic substrates. The table below summarizes the standard grades that are currently available and their corresponding substrates.

If you do not see your substrate in this table, please contact GLS directly; we can develop a custom TPE that is optimized to bond to your specific substrate.

Substrate

Typical Applications

Recommended TPEs

Polypropylene

Personal Care - Toothbrushes, Razors, Pens, Sports-Grips, Handles, Knobs, Flaps, Power & Hand Tool Handles, Grips, Caster Wheels

Dynaflex
Kraton
Versaflex CL
Versalloy XL

ABS

Housewares, Toys, Portable Electronics, Grips, Handles, Knobs

Versaflex OM
Versollan OM

Polycarbonate

Handheld Electronics, Business Equipment Housings, Sporting Goods, Healthcare Devices, Hand and Power Tools, Telecommunications and Business Machines

Versaflex OM
Versollan OM

PC/ABS

Housewares, Toys, Portable Electronics, Grips, Handles, Knobs, Hand and Power Tools, Sports and Leisure Equipment, Telecommunications and Business Machines

Versaflex OM
Versollan OM

Nylon 6 and 6/6

Hardware, Lawn and Garden Tools, Power Tools

Versaflex OM

Propionate

Toothbrush Handles, Eyewear, Cosmetic Packaging

Versaflex OM

Copolyester

Toothbrush Handles, Cosmetic Packaging

Versaflex OM

 

Material Flow Behavior     

GLS overmolding TPEs are shear responsive, thus their viscosity is reduced when they are processed at high shear rates. This allows for easy flow into thin-walled sections commonly encountered in over-molding applications. The figure below illustrates the effect of shear rate on the viscosity of GLS overmolding TPEs. For the viscosity of a specific grade, refer to the individual Product Technical Datasheet.

 

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