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#1
03-16-2024, 10:38 AM
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Fan shroud repair, what type of plastic
My 70 fan shroud has a large crack. Does anyone know the type of plastic? Trying to make the best repair.
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1970 GTO 400 Atoll Blue, PS, PDB, A/C Was M20 4 speed, now has Keisler RS600 5 speed. |
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#2
03-23-2024, 12:07 PM
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Found a good replacement.
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1970 GTO 400 Atoll Blue, PS, PDB, A/C Was M20 4 speed, now has Keisler RS600 5 speed. |
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#3
03-23-2024, 01:37 PM
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Glad you found one!
I'm still curious about the material as I find the GM manufacturing technology to be amazing. Things like the SMC headers, endura noses, nodular cast irons, etc. are historically as significant to me as the cars themselves. As I recall (suspect), the shroud is reinforced with long strands of a fiber. The shape doesn't make sense to me for injection molding, but I was around some big machines for molding office machine covers so it's possible. I'm guessing it was formed from a flat sheet, sprayed or layed up on a mold, or something similar. I'd love to hear how these were made and whether it was GM or sourced from suppliers. Mike |
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#4
03-23-2024, 08:55 PM
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Not familiar with this shroud mentioned, but nearly every other GM was polypropylene and has cast P.P. on it. Only special glues will work, sometimes plastic welding, but not pretty.
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