Yellowing Carbon Fiber - Page 6

JasonAndreas · 07-29-2007, 07:32 PM

Quote:

Originally Posted by 20C4S

the fact is the coating on top of the CF turns yellow regardless under normal driving/weather condition. so, even if Porsche agrees to change everything under warranty all will turn yellow again in about a year or less. then what?

This is not the first time that long term durability/sun exposure testing at Porsche has failed miserably. They could select a topcoat with better UV stabilizers rather than using none. Which seems to be the case if the yellowing is in fact occurring in only 12-24 months time.

VRAlexander · 07-29-2007, 09:40 PM

Quote:

Originally Posted by JasonAndreas

This is not the first time that long term durability/sun exposure testing at Porsche has failed miserably. They could select a topcoat with better UV stabilizers rather than using none. Which seems to be the case if the yellowing is in fact occurring in only 12-24 months time.

My attorney tells me that there are several different companies contracted to do the Carbon Fiber on the CGT...If you look at my engine bay, the Carbon Fiber that is on the side (compartment covers) as well as the wheel arches are fine...the rest looks horrid in contrast...

mdrums · 07-29-2007, 11:42 PM

just chiming in here because i wear carbon fiber everyday and deal with carbon fiber a lot. I wear a prosthetic leg and the socket is built of carbon fiber and I have a lacquer type of coating over it with graphics. It is under my pants all the time and not exposed to the sun and after a few years the socket starts to gradualy turn yellowish. Maybe it is some kind of reaction of the lacquer and carbon fiber?

art · 07-30-2007, 07:19 PM

I have a carbon bike, 4 years, 8K miles and no yellowing.

VRAlexander · 07-30-2007, 09:36 PM

Quote:

Originally Posted by art

I have a carbon bike, 4 years, 8K miles and no yellowing.

This is a Porsche problem...my carbon bike has not faded or turned color....neither has my Girard Perrequax Carbon watch or for that matter the F40!!!

I have left several messages for Porsche since thursday without a returned call....I received in the mail today all the advertising info for Du-Pont Registry and Excellence magazine...I am having an Advertising agent design a one page add that will run in both for the next year..I am also considering hiring a top Add firm to do a campaign on this...I have also contacted Robert (Seinfeld's curator) to see if his two CGT's have started to turn yellow...Concorso Italiano is coming up and I would like to put a one page add in the main catalog if possiable...It is too late to sponsor the event and post banners

....If you guys have any ideas on how else I can get my story across to as many people as possible please PM me....I am open to all suggestions and budget is not an issue...

Thanks

VRAlexander · 07-30-2007, 09:38 PM

Update...Tom from PCNA just called me and said that he needs a couple more days to get a final answer back from Porsche... back to the tick...tock.....tick....tock....tick....tok...

dsfnctn · 08-01-2007, 05:14 AM

I have 25+ years in the boat building industry building composite racing sailboats. Since I am also into porsches my company dabbles in a few interesting projects . Last year I successfully put back together a Carrera GT that had been totaled by the insurance company. The car had gone into a pole on the driverside. The door was exploded, rocker in about five pieces, and the tub was broken at the box section. The undertray was also trashed.
My company is more than capable to take on any type of composite repair on these cars .
To start with you have to understand that the clear coat has failed to protect the epoxy resin from UV damage. I would like to get my hands on a piece and see what I could do to repair the finish. I will tell you this . Total BS that the Carbon should be yellowing. UGH!!!!
See attached pics of carbon rig . (Sits outside in LA. 5+years, Been to Hawaii4times,Europe,Mexico) This rig gets so hot sitting in the hot marina in you can barly touch it and no yellowing.

dsfnctn · 08-01-2007, 05:25 AM

more carbon pics

yetis · 08-01-2007, 09:00 AM

Sweet, very nice. By chance, is that a carbon fiber toilet bowl in the 4th picture?

dk996tt · 08-01-2007, 12:47 PM

i hear from the guys at ecacp that the ccxr is supposed to unbelieveable. i would definitely check that car out before making a decision on the veyron!

dsfnctn · 08-01-2007, 01:40 PM

The work was done for Rothsport racing in Oregon for one of there customers. I work with them and they dissambled the car to provide access for the repairs and reassemble .
My shop is in Seattle. We have the largest 5 axes router in Washington and we have been involved building the Cup boat for BMW Oracale, and in the last cup ONE World.
Yes that is a composite toilet.

GoFastKindaGuy · 08-01-2007, 04:00 PM

Quote:

Originally Posted by dk996tt

i hear from the guys at ecacp that the ccxr is supposed to unbelieveable. i would definitely check that car out before making a decision on the veyron!

Just received the contract package from Koenigsegg on CCXR. 18 months out. Nice piece.

Also, I checked the carbon work on my 2003 Audi RS6: 41/2 years and not a sign of yellowing on the interior or engine carbon bits.

VRAlexander · 08-02-2007, 08:56 PM

Quote:

Originally Posted by VRAlexander

Update...Tom from PCNA just called me and said that he needs a couple more days to get a final answer back from Porsche... back to the tick...tock.....tick....tock....tick....tok...

Well its Thursday and STILL NO PHONE CALL from Porsche...I am not Surprised at all anymore...

VRAlexander · 08-02-2007, 08:57 PM

Quote:

Originally Posted by dsfnctn

The work was done for Rothsport racing in Oregon for one of there customers. I work with them and they dissambled the car to provide access for the repairs and reassemble .
My shop is in Seattle. We have the largest 5 axes router in Washington and we have been involved building the Cup boat for BMW Oracale, and in the last cup ONE World.
Yes that is a composite toilet.

Very nice work!! Can you please PM me your number?

dasams · 08-03-2007, 05:54 PM

Quote:

Originally Posted by art

I have a carbon bike, 4 years, 8K miles and no yellowing.

Graig Calfee will sell you a carbon bike in 'nude', (ie, no paint) but recommends that you keep it covered with a UV protectant. Otherwise, the carbon fiber will break down. Hmmm, could the yellowing have been prevented with a little suntan lotion?

OTOH, it sounds like some of the carbon fiber parts are yellowing even though they aren't exposed to sun. Correct?

dave

08-01-2007, 09:00 AM	#84
yetis Addict Rennlist Member Join Date: Oct 2004 Location: The City, NY Posts: 1,402	Sweet, very nice. By chance, is that a carbon fiber toilet bowl in the 4th picture? __________________ Chris RL# 041015-4860 2005 955 TT 2001 996 C4 - Gone 2001 Audi S4 - Gone!

07-29-2007, 11:42 PM	#78
mdrums Addict Rennlist Member Join Date: Mar 2006 Location: Tampa Posts: 4,207	just chiming in here because i wear carbon fiber everyday and deal with carbon fiber a lot. I wear a prosthetic leg and the socket is built of carbon fiber and I have a lacquer type of coating over it with graphics. It is under my pants all the time and not exposed to the sun and after a few years the socket starts to gradualy turn yellowish. Maybe it is some kind of reaction of the lacquer and carbon fiber?

07-30-2007, 07:19 PM	#79
art User Join Date: Jun 2001 Location: Westport MA Posts: 607	I have a carbon bike, 4 years, 8K miles and no yellowing.

07-30-2007, 09:38 PM	#81
VRAlexander User Join Date: Jun 2007 Location: Las Vegas Posts: 245	Update...Tom from PCNA just called me and said that he needs a couple more days to get a final answer back from Porsche... back to the tick...tock.....tick....tock....tick....tok...

08-01-2007, 12:47 PM	#85
dk996tt User Join Date: Oct 2003 Location: Gates Mills, OH Posts: 177	i hear from the guys at ecacp that the ccxr is supposed to unbelieveable. i would definitely check that car out before making a decision on the veyron!

08-01-2007, 01:40 PM	#86
dsfnctn User Join Date: Nov 2003 Posts: 42	The work was done for Rothsport racing in Oregon for one of there customers. I work with them and they dissambled the car to provide access for the repairs and reassemble . My shop is in Seattle. We have the largest 5 axes router in Washington and we have been involved building the Cup boat for BMW Oracale, and in the last cup ONE World. Yes that is a composite toilet.