M6 Carbon Fiber ROof

Thejoyofdriving said:
I treat carbon fiber just as I would clear coat.
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I have purchased a lot of carbon fiber parts for cars I have and have had. The manufacter of every carbon fiber part I have purchased said the carbon fiber was coated with urethane. Urethane is a type of plastic. It comes in a liquid state then hardens with exposed to air and the solvents evaporate. I have never purchased one that said it was coated with fiberglass resin. Fiberglass resin or any resin is very dense and heavy and would defet the purpose of going to carbon fiber. When subjected to a far amount of heat the urethane will yellow. I would use a lot of caution if you polish it was a rotary. I have done a lot of furniture using urethane. I usually put on 5-6 coats of urethane and steel wool with #0000 between coats. I have polished out the urethane after going over it with the #0000 steel wool. From my experience it will take less heat to yellow the urethane then it will to burn the paint with a rotary.
 
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Gary Sword said:
I have purchased a lot of carbon fiber parts for cars I have and have had. The manufacter of every carbon fiber part I have purchased said the carbon fiber was coated with urethane. Urethane is a type of plastic. It comes in a liquid state then hardens with exposed to air and the solvents evaporate. I have never purchased one that said it was coated with fiberglass resin. Fiberglass resin or any resin is very dense and heavy and would defet the purpose of going to carbon fiber. When subjected to a far amount of heat the urethane will yellow. I would use a lot of caution if you polish it was a rotary. I have done a lot of furniture using urethane. I usually put on 5-6 coats of urethane and steel wool with #0000 between coats. I have polished out the urethane after going over it with the #0000 steel wool. From my experience it will take less heat to yellow the urethane then it will to burn the paint with a rotary.
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:goodpost: Thanks for the info Gary!
 
Gary Sword said:
I have purchased a lot of carbon fiber parts for cars I have and have had. The manufacter of every carbon fiber part I have purchased said the carbon fiber was coated with urethane. Urethane is a type of plastic. It comes in a liquid state then hardens with exposed to air and the solvents evaporate. I have never purchased one that said it was coated with fiberglass resin. Fiberglass resin or any resin is very dense and heavy and would defet the purpose of going to carbon fiber. When subjected to a far amount of heat the urethane will yellow. I would use a lot of caution if you polish it was a rotary. I have done a lot of furniture using urethane. I usually put on 5-6 coats of urethane and steel wool with #0000 between coats. I have polished out the urethane after going over it with the #0000 steel wool. From my experience it will take less heat to yellow the urethane then it will to burn the paint with a rotary.
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I think that there are some heat resistant resins that resist yellowing, they use this heat resistant resin for carbon fiber that is in engine bays or other places where it might encounter heat.
 
Thejoyofdriving said:
I think that there are some heat resistant resins that resist yellowing, they use this heat resistant resin for carbon fiber that is in engine bays or other places where it might encounter heat.
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I have never read where they use a resin with carbon fiter. There has never been a mention by a manufactur of using a resin on any of the carbon fiber parts I have purchased. Carbon fiber is used in engine bays but I have never seen it used for a part that really gets hot. I have also used a rotary to buff of cultured marble which made of resin and marble dust. Resin tends to heat up very fast and will discolor quickly. From my experience in working with resins it will also burn much easlier then paint. I would again say to use caution with a rotary when polishing carbon fiber. Carbon fiber parts are expensive. It would be a shame and costly to mess them up.
 
Gary Sword said:
I have purchased a lot of carbon fiber parts for cars I have and have had. The manufacter of every carbon fiber part I have purchased said the carbon fiber was coated with urethane. Urethane is a type of plastic. It comes in a liquid state then hardens with exposed to air and the solvents evaporate. I have never purchased one that said it was coated with fiberglass resin. Fiberglass resin or any resin is very dense and heavy and would defet the purpose of going to carbon fiber. When subjected to a far amount of heat the urethane will yellow. I would use a lot of caution if you polish it was a rotary. I have done a lot of furniture using urethane. I usually put on 5-6 coats of urethane and steel wool with #0000 between coats. I have polished out the urethane after going over it with the #0000 steel wool. From my experience it will take less heat to yellow the urethane then it will to burn the paint with a rotary.
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amazingly you are THE MAN
i hit up my buddy over here at Newport BMW and asked about it..hes a master tech/foreman so he knows all the goodies about everything BMW...so ya ur rite...

i was scared to damage it i jus did a few passes with a grey pad & 106ff on my pc and it worked fine...better safe than sorry

=)
thanks for the info
 
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