By Trevor Harris - 10/19/2016 1:59:13 PM
Hi Everyone,
Are there any metals that should not be used on CF projects. I think I have heard or seen suggestions that as carbon fibre is conductive you will get galvanic corrosion with aluminium inserts. Providing the insert is bonded post cure with epoxy would the resin stop the insert touching the conductive carbon fibres? Would brass or stainless be ok?
I am not talking high end structural applications such as aircraft here but more mundane items such as car panels perhaps exposed to rain or moisture. Does cured epoxy resin outgas acidic vapours? I remember being told never use steel fasteners with Oak wood. Acid vapours given off will rust the nails screws. Would the same rule of thumb apply to CF?
Many thanks
Trevor
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By Hanaldo - 10/28/2016 5:29:02 AM
An epoxy adhesive will insulate against galvanic corrosion. You only need fibreglass or anodised ali if you are including the metal in the layup of your part. If us bonded on after, there shouldn't be any conductivity from the carbon to the metal.
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