Interior/Exterior OEM or CF hoods

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Jan 31, 2008 | 01:18 PM

#26

UKSUV

6th Gear

Joined: Oct 2004

Posts: 3,673

Likes: 2

From: Marsala, Sicily

Quote:

Originally Posted by 07BPB

Ok this is a bit out there. I sail small catamarans, and my boat has a bit of carbon fiber on it such as cross beams, carbon fiber mast etc. And well I always have to keep these things covered and protected from the sun because the UV rays tend to break up the carbon and make it deteriorate and lose its shine. Do the carbon fiber hoods have a tendency to want to deteriorate and lose their glossy topcoat?

YES...its not the CF that looks like that. Its the gel coating. Mine is starting to yellow to a greenish (Kevlar) color. You need to have you car, boat or whatever protected from the sun.

Apr 3, 2008 | 02:56 AM

#27

KC Jr 54

4th Gear

iTrader: (12)

Joined: Mar 2008

Posts: 361

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There is a 'special' clearcoat that has been developed to have this not happen. Of all places....Chevy and was designed namely for the New ZR1 vette of all things. Rather exspencive though....$6k a GALLON for the stuff.

Besides, painted Carbon Fiber is more baller.

Apr 3, 2008 | 11:14 AM

#28

UKSUV

6th Gear

Joined: Oct 2004

Posts: 3,673

Likes: 2

From: Marsala, Sicily

Quote:

Originally Posted by KC Jr 54

Yeah...I read that in C&D (last issue I believe). That is some crazy stuff....

Apr 3, 2008 | 08:14 PM

#29

Rhali

1st Gear

Joined: Nov 2006

Posts: 17

Likes: 0

From: Old Town, Alexandria

On the question on why the CF Hood doesn’t get as hot:
Fiber Reinforced Epoxy (CF) Thermal Conductivity: .0059 W/m*K
Aluminum: Thermal Conductivity: 180 W/m*K
Steel: Thermal Conductivity: 46 W/m*K
I think you can see how good of an insulator the CF reinforced Epoxy is.

On the UV and Epoxy issue. KC JR 54 is exactly right. You need to protect the Resin ( not the CF ) from UV light. UV light breaks down the polymer chains causing chalking, yellowing, and strength reduction over time. there are Marine grade resins to protect your epoxy.

GL

Rhali