Food contact approved formulations are available

The company tried several TPE grades, hoping to find a material that would eliminate the adhesion problem while providing comparable softness to silicone. THE SOLUTION Avient formulated a custom Versaflex™ TPE that featured a low durometer with excellent resistance to adhesion (sticking). THE IMPACT Avient’s formulation expertise produced a specialty TPE solution that surpassed not only silicone but also competitive TPEs to solve the gasket adhesion problem for this medical manufacturer.

It requires a pre-mixing step, a long curing phase and an adhesive to bond to the plastic substrate. Ultimately, the company selected a Versaflex™ OM overmolding grade that bonded tightly to the polycarbonate (PC) substrate of the grips without the need for adhesives. Additionally, compared to silicone rubber, the TPE is easier and faster to process, as it requires no pre-mixing, curing or adhesives.

Avient Introduces Versaflex™ TF Adhesive TPEs for Textile Fabrics Avient Introduces Versaflex™ TF Adhesive TPE Solutions for Athletic Textile Fabrics   To download a high-resolution image, please click here

Adhesion mechanisms and novel TPE developments for overmolding Material used, injection molding of plaques, physical properties, adhesion, rheology and results

TARGET APPLICATIONS Excelite IM chemical foaming additives (CFAs) are engineered for a wide range of injection molded polymers: olefins, PVC, polystyrene, PC/ABS and high heat applications. PP, PE, PS, PVC No Good Foam PP Better, larger cells with lower cell density in standard IM processes; suitable for cell nucleation in structural foam processing PP, PE, PS, PVC Yes Better FA-110 Best cell structure with higher cell density; provides better structural integrity and lower density in standard IM processes PP, PE, PS, PVC Yes Best KEY CHARACTERISTICS Excelite IM formulations provide injection molders with: • Material density and weight reduction • High concentration of active CFA • Improved distribution of CFA into polymer matrix • High cell density with tight cell structure • Control over consistency and accuracy • Reduced sink marks • Ability to improve flow of material • Cycle time reduction • Improved dimensional stability • Improved thermal insulation EXCELITE IM – PRODUCT FORMULATIONS www.avient.com Copyright © 2020, Avient Corporation.

These formulations have low shrinkage and adhesion, high abrasion resistance and stiffness, and good processing speeds.  Non-phthalate PVC colorants are also available. 

12000WPV GW-LAMINATING ADHESIVE 5050 142 PVC RESIN

Geon(TM) DB4892A Neutral Adhesive Add(3865) Geon(TM) V1784 Black PVC

PMS 200C RED PVC Geon(TM) A54-20C Filter Adhesive