Recently I imported a few completely carbon car trims, these are not the typical cheaper carbon/fiber glass pieces that you see the Asia market often exporting.

One thing I spotted however is that nearly all their pieces no matter which supplier you use has a faint blue'ish hue, almost like a cloudy appearance when you view it under direct sunlight and from acute angles. I have tried sanding this all the way back to the fabric however what I typically find is the fabric layer is exactly the same due to it soaking up the resin.



Is this a reaction from post curing, or generally poor grade resin? I can't quite understand why 90% of the manufacturers I have come across have this ''issue'' yet the odd one or two don't. Frustratingly the suppliers who have this cloudy resin often produce much higher quality cosmetic items than the ones with absolutely clear resin.

its impossible to say for sure as there could be a number of factors on their own or combines, eg tint of the resin, UV additives, excessively thick gelcoat, moisture issues, type and application of clearcoat lacquers etc.  Its hard to know manufacturer to manufacturer. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant