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. You can use the Product Search Wizard to obtain a detailed list of all GLS standard TPEs that bond to a selected substrate.

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

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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.

chart

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