got in touch with streamline carbon and he said this :
Hi Simon
Thank you for the picture. I am afraid bad news on this one, the white streaking is moisture that is in the gel coat finish of the panel and has for some reason taken time to show its ugly head. No matter what you do this cannot be removed, it is under the surface. It is related to the quality of materials used in the manufacturing process with these types of budget panels I am afraid.
I am not sure what else to suggest other than may painting the panel and leaving a few sublte corners of carbon on show that appear to be unaffected.
I presuime this is a bonent purchased from K-tec, which is imported in the far east, I know. Nothing against anyone of the manufacturer just a downside to the money paid for the part and the materials and methods used.
Hope this helps.
Chris
so looks like i'm bummed lols time to fix the old bonnet and mayb look for a 172 hehe