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.
