Crown

Board: Porsche Language: English Region: Worldwide Share/Save/Bookmark Close

Forum - Thread


    Extreme Temp, UV, Humidity effect CFRP looks in CGT

    Here is an interesting tidbit on the surface finish of CGT body panels from the Service Information, 2004 Technik Introduction book I have seen:

    "Under certain external conditions, high surface temperatures and UV radiation (sunlight), may cause the components of CFRP, the woven structure to show through the painted surface (top coat).

    This behavior is accentuated if in addition to the above parameters the ambient humidity is high.

    This behavior is not a defect, it is a material-specific feature!

    It can appear different from different angles of view and for different exterior paint finishes. In a very wide range of temperatures this behavior will not show itself in the materials used for the Carrera GT. Beyond that there is a range where the woven structure emerges as visible; but when the ambient conditions change it is lost to view again.

    This range itself extends to unusually high temperatures; however if these temperatures are exceeded then to an extent the changes become irreversible.

    Those parts that are made of visible carbon fiber are given a special UV resistant clear finish to prevent UV-related ageing and associated yellowing of the surface."

    ..............

    Pretty interesting. It seems as if the carbon fiber is fairly stout in this application, but I can see Porsche setting up a warning that if one were to allow the grill over the muffler chimney to become clogged (or try to cook a steak on it) that there is some danger of a finish imperfection developing as a result.

    Re: Extreme Temp, UV, Humidity effect CFRP looks in CGT

    Here in the southern US the carbon finishes have been cracking and yellowing for years. This is a standard interior trim in carbon (around the windshield) will pull up and lose its shape. This will happen if the car is exposed to hot interior and direct sunlight day after day. Most of these GT's will be garaged and protected. Probably not a worry.

    Re: Extreme Temp, UV, Humidity effect CFRP looks in CGT

    Do not park your Carrera GT in Texas for the summer!

    Although, it doesn't say what this "behavior" would actually look like. Sort of a "pentimento" effect. Who says these cars aren't art!

    Dain

     
    Edit

    Forum

    Board Subject Last post Rating Views Replies
    Porsche Sticky The moment I've been waiting for... 5/18/22 6:36 PM
    Pilot
     
     
     
     
     
    679389 1306
    Porsche Sticky OFFICIAL: New Porsche 911 Turbo S (2020) 10/9/22 4:08 PM
    watt
    313371 1186
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 11/27/22 12:22 PM
    DJM48
    210249 1251
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 11/9/22 4:37 PM
    Joost
    195938 434
    Porsche Sticky Porsche Taycan Turbo S - Short Review 10/6/22 12:37 AM
    WhoopsyM
    179497 580
    Porsche Sticky OFFICIAL: Cayman GT4 RS (2021) 11/22/22 8:19 PM
    GaussM
    121135 9
    Porsche Sticky OFFICIAL: Porsche 911 (992) GT3 RS - 2022 11/25/22 8:11 AM
    M3ike
    50762 67
    McLaren McLaren on a winning streak 2/1/22 10:14 PM
    SSO.
    514305 3954
    Porsche OFFICIAL: 911 R (2016) 2/1/22 9:49 AM
    RCA
    469666 2655
    Porsche 992 GT3 11/27/22 2:46 AM
    WhoopsyM
    465287 3785
    Porsche Donor vehicle for Singer Vehicle Design 9/30/22 6:31 PM
    Grant
    223440 774
    Porsche Welcome to the new Taycan Forum! 7/30/22 11:46 AM
    Wonderbar
    221667 1446
    AMG AMG GT R 3/13/22 8:52 PM
    spudgun
    193128 834
    Lambo Aventador and SV 5/20/22 5:24 PM
    Topspeed
    189089 710
    Others Tesla 2 the new thread 10/27/22 2:59 PM
    Leawood911
    184031 1863
    Porsche GT4RS 11/24/22 3:09 AM
    GnilM
    183131 1193
    Motor Sp. [2021] Formula 1 4/19/22 10:08 PM
    Leawood911
    157061 1590
    Others Bugatti Chiron 8/30/22 4:31 PM
    Josef
    153831 525
    Ferrari Ferrari 812 Superfast 6/12/22 5:09 PM
    watt
    149960 535
    BMW M BMW M2 Rumors 2/28/22 7:42 PM
    Topspeed
    136539 409
    Porsche Red Nipples 991.2 GT3 Touring on tour 10/6/22 11:48 PM
    DJM48
    133479 501
    Lambo Urus (SUV) 6/7/22 1:20 PM
    Topspeed
    131723 593
    Others Corvette C8 7/18/22 12:40 PM
    WhoopsyM
    130959 443
    Porsche Dave and Gnil @ Nürburgring Nordschleife 7/4/22 10:42 PM
    DaveGordon
    129586 722
    Motor Sp. [2022] Formula 1 11/23/22 5:52 PM
    Enmanuel
    120165 1553
    Others Toyota Yaris GR 4/13/22 8:33 PM
    Grant
    100638 640
    Lambo Huracán EVO STO 7/21/22 8:37 AM
    RCA
    99993 335
    AMG Mercedes E63 S AMG (2018) - Short Review (updated on a regular basis) 10/24/22 7:42 AM
    RCA
    97423 402
    Ferrari Wandered to the dark side 8/29/22 9:35 AM
    BiTurbo
    72516 418
    Ferrari Ferrari Roma 4/18/22 4:33 PM
    watt
    31422 438
    176 items found, displaying 1 to 30.