how to connect carbon and not to see connection

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#1

how to connect carbon when you wrap so person can not see line of connection?

as with polyster i can do this but i tryed epoxy and thats nightmare can not do like this? is it real and how?

#2

are you using a vinyl type of wrap? or actual carbon fibre mat?

as with most joining of anything thin, best to lay one sheet slightly over the other,then use a ruler to cut both sheets, then remove scrap from both sheets, allowing both sheets to match perfectly.

the problem with a patterned sheet is, the patterns will not align perfectly unless you’re a magician.

#3

but with polyster i can do that you never see connection and with epoxy resin i can not do i do not understand maybe of resin?

#4

You’re leaving a lot of information out I think. Are you refering to the fairly quick “tack” that you get with the polyester for laying the dry fabric into? Epoxy will provide the same but you’ll be waiting for hours for “tack” to stick your fabric onto unless you use a 5 minute type of epoxy for your base.
Is this what you’re refering to?

#5

With lighter fabric it’s easier to pleat or fold at the seams. Say on a hood instead of butting a raw edge. Match the creases of a fold together and debulk. Or just overlap over a crease.

#6

Hi,

For overlay - I have used the following method where I needed a pre-peg type visible join in my twill:

Cut your cloth to size and secure your symetry with edge tape.

Lightly wet-out about 30cm of the edges you need to join with your resin of choice:

The below pic was taken just after I had used a clamped straight edge and a new sharpy to trim the two edges whilst in the ‘green stage’.

I do this on a sheet of safety glass generally ;-))

You can see the carbon piece in the background awaiting the ‘overlay’ with the join.

I then proceeded with the overlay in the usual way carefully lining up the join/twill pattern first and working my way out from there.

Here are a couple of pics after some top coat - still unfinished.

Pretty easy on straight joins - gets more interesting on curved parts - but I use the same process and get good results.

Timing and temperture are key variables here…

I am sure all you carbon guru’s have better ways of doing this but as I only do this for my own amusement - works for me :slight_smile:

Hop ethat helps.

#7

first of all good that you replied - But my friend with polyster resin i can connect that you never see with your eye where i connected. i ask how to do the same with epoxy as with epoxy i do not get . and with polyster pretty fast and easy.