https://www.avient.com/sites/default/files/resources/Overmolding_of_Thermoplastic_Elastomers_Engineered_solutions_for_consumer_product_differentiation.pdf
Rigid substrates include polypropylene(PP), polyethylene (PE), amorphous polar plastics such as polycarbonate (PC), polymethylmethacrylate (PMMA), polystyrene (PS), high impact polystyrene(HIPS), polyphenylene oxide (PPO), glycol modified polyethylene terephthalate (PETG), Acrylonitrile Butadiene Styrene (ABS), semicrystalline polar plastics such as polyester (PET, PBT) and Polyamide (Nylon 6, Nylon 66).
Table 2: Adhesion Values (pli) for Typical TPE grades which are polar modified styrenic block copolymers TPE-A TPE-B TPE-C TPE-D TPE-E TPE-F TPE-G Cycoloy C2950 (PC/ABS) 12.4 A 16.7 A 15 A 15.5 C 26.4 C Cycolac T1000 (ABS) 11.9 A 17.8 A 14.5 A 15.1 C 27.2 C Lexan 141 (PC) 12.2 A 14.5 A 13.5 A 17.2 C 27.1 C Zytel 7331F (PA6) 21 A 23.5 A Zytel 73G33L (33% GF PA6) 17.2 A 19.8 A Zytel 101L (PA66) 22.1 A 20.7 A Table3: Adhesion Values (pli) for commercially available TPEs.
B-TPE-65A B-TPV-55A B-TPE-35A B-TPE-50A B-TPV-55A B-TPV-70A Cycoloy C2950 (PC/ABS) 12.8 A 8.1 A 10.4 A 15.1 A Cycolac T1000 (ABS) 10.2 A 9.1 A 9.1 A 12.4 A Lexane 141 (PC) 11.7 A 10.2 8.1 A 15 A Zytel 7331F (PA6) 7.2 A 8.8 A Zytel 73G33L (33% GF PA6) 8.1 A 8.2 A Zytel 101L (PA66) 6.8 A 7.2 A 0 5 10 15 20 25 30 35 TPE-A TPE-B TPE-D TPE-E1 TPE-E2 ABS PC/ABS PC Figure 8: Adhesion values of TPEs with rigid substrates, ABS, PC and PC/ABS Consumer Product Differentiation Page 13 July 19, 2007 Today there is phenomenal interest in overmolding TPEs onto rigid substrates, particularly in the consumer product arena in applications requiring a soft touch.