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Old Sep 27, 2022 | 06:30 PM
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Default OEM Material Question

Hey y’all—

Long time lurker as I planned my first Corvette buy. Currently have a ‘23 in production!

I’m hoping to get the OEM rear diffuser and front splitter painted by a local body shop, but need to know what they’re made of first! Is it carbon fiber or another material?

Thanks in advance for the help!
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Old Sep 27, 2022 | 06:36 PM
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They’re fiberglass
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Old Sep 27, 2022 | 06:40 PM
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Originally Posted by Majestic94
They’re fiberglass
Both are? I read elsewhere it was ABS plastic but wanted to confirm.

Thanks again!
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Old Sep 27, 2022 | 06:57 PM
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Originally Posted by BLUCFR
Both are? I read elsewhere it was ABS plastic but wanted to confirm.

Thanks again!
The front is PP-EPDM. I think the rear is too. It's rubber reinforced with polypropylene
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Old Sep 27, 2022 | 07:15 PM
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Originally Posted by BLUCFR
Both are? I read elsewhere it was ABS plastic but wanted to confirm.

Thanks again!
When mine was rear ended, the diffuser sure looked like splintered fiberglass to me.
The rear fascia is ABS though.
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Old Sep 28, 2022 | 07:58 AM
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Originally Posted by Majestic94
When mine was rear ended, the diffuser sure looked like splintered fiberglass to me.
The rear fascia is ABS though.
Seems like this is confirmed now that two folks agreed. Thanks for the input!
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Old Sep 28, 2022 | 08:11 AM
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https://www.compositesworld.com/arti...orvette-part-2
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Old Sep 28, 2022 | 08:52 AM
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https://www.ebay.com/itm/144590371490

This ad has a pic that shows the front splitter is clearly PP-EPDM
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Old Sep 28, 2022 | 07:19 PM
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As much as my splitter had scraped pavement, if it were fiberglass it would be history by now. It's also way more flexible than fiberglass would be. The link C8 BG KY posted indicates it's TPO, which is Thermoplastic Polyolefin.

https://www.hexpol.com/tpe/resources...e/what-is-tpo/

Fiberglass would be a really bad choice of material for this part. Half the Z51s on the road would have broken splitters by now.
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