Sorry if this is the wrong forum, not sure where to put this. Looking for a carbon fiber sheet .125 thick by 3'X4', and may need some more later. **** is expensive. Anyone have an inexpensive source, etc.? Thanks!

 

looking for pre peg or a dry sheet?

also is 1/8" really necessary?

 

Well not sure. I mostly deal with metal, but I do know from what my buddy told me to get (he's out of country now, will be back in two weeks), was a flat sheet/piece of .125" carbon fiber, gloss one or both sides. Not forming any parts for a car, this is for a seperate project, need flat sheet pieces. Thanks!

 

Do you want the cloth or carbon plate?
I would have been able to help but think we are not on the same continent :D

 

Isn't the cloth the pre peg stuff? We have tons of rolls beings that's what we use on our cars.

 

I'm in the US. I'm looking for the stuff that is ready to go, no need for curing, heating, or anything else. Hope that makes sense. .125" thick flat plate very rigid and strong. Thanks.

 

Bump!

 

Get the cloth and make your own bud. It is easy

 

dragon plate is the cheapest for sheets.

like mentioned above the cloth will be a lot cheaper and easy....and lighter because you can just put honey comb in between a couple layers of cf isntead of having a 1/8" thick sheet of cf

 

Could someone give me the process for doing CF, with using a core? Looking for strength and rigidity. Also, a inexpensive supplier for the materials online? Any help would be appreciated. From what I understand it is similar to setting up fiber glass, right? Also, need instructions on how to make a two or one side gloss look. Thanks again! Oh, one more thing do you use a vac bag, or just sandwich the pieces between a heavy block?

 

Gotta make a mold out of fiberglass first unless you got an aluminum template

 

Even though I want a perfectly FLAT piece? I basically need half a dozen 12x12 inch perfectly flat plates .125 " thick.

 

For a flat piece just use a pier of alum for or template then lay the cf down it. With the cloth/pre peg, you need an oven and a vac bag

 

Do you need an oven? I was watching a few youtube videos and after they finished putting the resin on, and bagging, they left it sit until the resin dried. I don't have an oven specifically for CF.

Also, I basically wanted to use a few pieces of CF for a protype I am making. I don't even know if the CF will work, and hate to invest a **** load of money into a process that is not viable, thus my quest for finding some cheap scrap pieces that someone may has that will fit my needs. Thanks.

 

If you use regular cloth and resin don't need an oven but wih the pre peg stuff you do

 

You lay down your cf cloth on flat glass little thicker than what you want it and the cloth must be about 1" bigger than what you want.
Hit it hard with resin and put 1/8" inch spacers on the ends of the glass and put the same size glass on top of it with some nice heavy flat weight like a bread board and put stuff on top of it for extra weight.
Glass must have release agent on it.

Before adding the weight on top of the glass you can first see if there are any air bubbles/imperfections.

Cut it to the size/shape you want with a hack saw and use a block with sand paper (P400) to smoothen the hack saw marks on the edges.

 

Thanks. What do you mean when you say use spacers, and why? Got everything, but not the spacer part... thanks again!

 

put spacers of 1/8" inch thick on the edges of the glass so that when you put the other glass on top of it with the weight it will compress the slightly thicker fibber until it rests on the spacers and will give a even thickness all round.
The glass must be bigger than the cloth so that there is space for the spacers on the edges.
Only a little bigger and not to thin glass as it could flex or break.

 

Wet lay is going to have some imperfections...or maybe I'm just used to seeing pre peg parts

 

You can fix pin holes with a little resin
And if you want you can sand it smooth with P600 and spray it with clear coat.

 

I know. Still not as nice as pre peg though

 

Prepreg is a bit unrealistic for what he wants to do.