Car and Driver Faux Pas on the Corvette/C8
04-26-2019, 07:37 PM
#1
Burning Brakes
Thread Starter
Car and Driver Faux Pas on the Corvette/C8
Opening definitive statement:
If this source is correct the Vette hasn't been traditional fiberglass since 1973:
https://media.gm.com/media/us/en/gm/..._corvette.html
It's surprising a company that's supposed to be an expert about cars, makes such a big error in their opening statement about an american icon. I'll stick to Motor Trend.
Since its inception, the Chevrolet Corvette—in production form, at least—has never deviated from three core attributes: front engine, rear-wheel drive, fiberglass bodywork.
https://media.gm.com/media/us/en/gm/..._corvette.html
It's surprising a company that's supposed to be an expert about cars, makes such a big error in their opening statement about an american icon. I'll stick to Motor Trend.
04-26-2019, 08:03 PM
#2
Safety Car
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Seriously? Here's the definition of SMC:
So you're going to go full-pedantic because it is no longer pure fiber glass, but is instead "glass fibre reenforced polyester"?
Sheet moulding compound or sheet moulding composite is a ready to mould glass-fibre reinforced polyester material primarily used in compression moulding.
Last edited by mschuyler; 04-26-2019 at 08:04 PM.
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04-26-2019, 08:09 PM
#3
Burning Brakes
Thread Starter
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04-26-2019, 08:34 PM
#4
Why are some people so obsessed with minute details. If you want to call it by the specifics, go ahead. But its fiberglass.
04-26-2019, 08:55 PM
#6
It’s just an quick and easy way to describe and differentiate from a steel or CF body when time or text space is limited.
People who know the difference can secretly snicker...
People who know the difference can secretly snicker...
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04-26-2019, 09:13 PM
#7
Team Owner
On the 2019 Corvette, the front and rear fascia's are molded urethane and the rest of the body panels are SMC made with hollow glass spheres, not "fiberglass". The hood and roof are carbon fiber, not "fiberglass".
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04-26-2019, 09:55 PM
#10
... I am snickering...
04-27-2019, 02:06 AM
#11
Burning Brakes
Thread Starter
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04-27-2019, 07:42 AM
#13
Melting Slicks
Come on guys, lighten up, we are here to discuss the next generation of Corvette, not berate each other for minor perceived detail infractions!
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04-27-2019, 08:28 AM
#15
Team Owner
04-27-2019, 08:34 AM
#16
Race Director
The SMC is much more forgiving to little taps than the old fiberglass days...
SMC actually an amazing body material whereas the old figerglass days were a fragile material.
car and driver was just making headline inducing statements
dont take it too literal.
in my opinion SMC is awesome
SMC actually an amazing body material whereas the old figerglass days were a fragile material.
car and driver was just making headline inducing statements
dont take it too literal.
in my opinion SMC is awesome
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04-27-2019, 09:03 AM
#17
Safety Car
An ex is a has been and spurt is a drip under pressure. I design/ed and manufacture fiber glass and CF aero parts. I pressure cast high temp poli urethane which requires a controlled high temp 4 hour cure. With the help of a chemical engineer, it took over a year to perfect the patented process and compound. You don't know what you are talking about. Nobody knows more about composite materials than I do.Motor Trend is and always been fake news controlled by scribes that hate America and American cars.
Oh, yeah, the deepest I dove was a 200' dive in Jamaica to see jaws. No one knows more about SCUBA than I do.
04-27-2019, 09:05 AM
#18
Le Mans Master
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04-27-2019, 10:36 AM
#20
Safety Car
It's funny that you're being so picky about the word, 'fiberglass' but aren't even specifying which form you're describing.
Are you also saying that a chopper gun doesn't use 'fiberglass?'
You're also, no doubt' aware that the 'glass spheres' aren't really glass, but phenolic? The phenolic spheres do not replace the fiberglass roving in SMC. Instead they are used to make the resulting molded part lighter.
What comes out of a chopper gun used to lay-up molded boat hulls? Is that fiberglass?
What is the reinforcement used in Sheet Molding Compound? (SMC)
Thread starter has officially proven he knows nothing about fiberglass.
From: Sheet Molding Compounds (SMC)
Sheet Molding Compound (SMC) is a compression molding compound often used for larger parts where higher mechanical strength is needed. SMC is a fiber reinforced thermoset material. Glass reinforcement is between 10% and 60%, and glass length is slightly longer than Bulk Molding Compound (BMC) - between 1/2-inch and 1-inch (25mm).
Thermoset Sheet Molding Compound (SMC) is a mixture of polymer resin, inert fillers, fiber reinforcement, catalysts, pigments and stabilizers, release agents, and thickeners and possesses strong dielectric properties. Manufacture of sheet molding compounds is a continuous in-line process. The material is sheathed both top and bottom with a polyethylene or nylon plastic film to prevent auto-adhesion. The paste is spread uniformly onto the bottom film. Chopped glass fibers are randomly deposited onto the paste. The top film is introduced and the sandwich is rolled into a pre-determined thickness. The sheet is allowed to mature for 48 hours.
Sheet molding compounds can be molded into complex shapes. Superior mechanical properties and surface appearance, plus excellent electrical insulation make this thermoset material ideal for automotive Class A body panels, high-strength electrical parts, business equipment cabinets, personal watercraft, and various structural components.
Thermoset Sheet Molding Compound (SMC) is a mixture of polymer resin, inert fillers, fiber reinforcement, catalysts, pigments and stabilizers, release agents, and thickeners and possesses strong dielectric properties. Manufacture of sheet molding compounds is a continuous in-line process. The material is sheathed both top and bottom with a polyethylene or nylon plastic film to prevent auto-adhesion. The paste is spread uniformly onto the bottom film. Chopped glass fibers are randomly deposited onto the paste. The top film is introduced and the sandwich is rolled into a pre-determined thickness. The sheet is allowed to mature for 48 hours.
Sheet molding compounds can be molded into complex shapes. Superior mechanical properties and surface appearance, plus excellent electrical insulation make this thermoset material ideal for automotive Class A body panels, high-strength electrical parts, business equipment cabinets, personal watercraft, and various structural components.
Anyone who posted that SMC is not fiberglass should be feeling a little silly right about now.
Last edited by Steve Garrett; 04-27-2019 at 05:14 PM. Reason: Merged Posts - Please use the Multi Quote button to make your responses look like this.