Overmolded Part Swelling
A customer was overmolding 8211-55 to a PP substrate for a pen grip. The part made of Santoprene™ TPV was experiencing swelling of the material. After probing the customer, I discovered that some of their customers were using a hand lotion that contains hydrocarbon oil that was causing the material to swell slightly. I suggested they go to 8211-75, a harder grade of material that would provide more oil resistance.
Posted on 2007-08-16 4:30 PM
The AnswerPersonSM
Technical solutions, right away. Exclusively from ExxonMobil Chemical's Santoprene brand TPVs.
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