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
|ABS||Housewares, Toys, Portable Electronics, Grips, Handles, Knobs||Versaflex OM
|Polycarbonate||Handheld Electronics, Business Equipment Housings, Sporting Goods, Healthcare Devices, Hand and Power Tools, Telecommunications and Business Machines||Versaflex OM
|PC/ABS||Housewares, Toys, Portable Electronics, Grips, Handles, Knobs, Hand and Power Tools, Sports and Leisure Equipment, Telecommunications and Business Machines||Versaflex 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|
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.