Carbon layer thickness: do you know it?

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Carbon layer thickness: do you know it?

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AlessandroPA	AlessandroPA posted 10 Years Ago HOT Topic Details
Group: Forum Members Posts: 26, Visits: 301	Hi guys, I hope somebody can help me. I have to make a 27,2mm diameter tube, and to make this I'will wrap more times a single sheet of carbon around a 1" diameter tube (25,4mm). the tube will be used to be connected to the hull of a saddle I'm going to create. My question is: does anybody know the thickness of a single layer of carbon? In this way I will know the number of wrapping I have to do in order to reach the 27,2mm. Consider that, after the wrapping, the created tube will be closed into the bag and used with the vacuum bagging, so that the carbon will be more compressed. In the end I will give a layer of glossy finishing. Thanks a lot for the help
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Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	That is assuming a good resin ratio though. Are you doing it wet lay? It's a bit harder to judge the thickness with wet lay because it's harder to hit your required resin/fabric ratio. Pre-preg or infusion you can nail a 60/40 ratio and get very accurate thicknesses. Wet lay you are probably looking at a 50/50 ratio if you measure correctly and can get the lay up right, so it could end up a bit thicker. You've got a touch of leeway there with your 7 layers though, so you will probably still be ok. Just something to keep in mind.
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AlessandroPA	AlessandroPA posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 26, Visits: 301	That's ok, so I will use the ratio 50/50, even considering that into the bag, the layers of peelply and other fabrics will absorb the resin in excess. Then, I will check the diameter before to apply the final layer of finishing, maybe I won't need of it if the diameter is good enough Hanaldo (25/04/2015) That is assuming a good resin ratio though. Are you doing it wet lay? It's a bit harder to judge the thickness with wet lay because it's harder to hit your required resin/fabric ratio. Pre-preg or infusion you can nail a 60/40 ratio and get very accurate thicknesses. Wet lay you are probably looking at a 50/50 ratio if you measure correctly and can get the lay up right, so it could end up a bit thicker. You've got a touch of leeway there with your 7 layers though, so you will probably still be ok. Just something to keep in mind.
	Reply Like 2