Tiny pitting chips to Windscreen!
Discussion
My porsche is the same (lots of miles and lots of track days) and by all accounts, the only fix is a new windscreen. I thought I'd hit the jackpot last month when I got a large stone chip in the screen but sadly Autoglass (or whoever it was) were able to fix it rather than replace it 
Chris32345 said:
DIY chip reapir kit fill will the resin apply patch over untill cured then scrape smooth with a blade you won't notice them after
I do this with the Kit from Halfrauds for the bigger ones but ultimately if you track a car or it has a few miles under its belt, only a new screen will cure the problem.There is a company and product that is a protection film for a windscreen but not widely used.
Far Cough said:
I do this with the Kit from Halfrauds for the bigger ones but ultimately if you track a car or it has a few miles under its belt, only a new screen will cure the problem.
There is a company and product that is a protection film for a windscreen but not widely used.
You can use the kit to fill the tiny chips as well and you'd never know they were even there so no you don't need a new windscreenThere is a company and product that is a protection film for a windscreen but not widely used.
Chris32345 said:
You can use the kit to fill the tiny chips as well and you'd never know they were even there so no you don't need a new windscreen
I think the OP is talking about when the low sun hits the screen and it looks like its been sand blasted - far too many to sort out but yes you are correct. Its excellent for filling the smaller chips too 
CeramicMX5ND2 said:
My MX-5 ND appears to have some really small chips, pitting to the windscreen - only really notice this during sunny days and especially when the sun is low in the sky. Anyone else had a similar problem? Not sure what can be done to be honest......!
It's a symptom of high mileage/higher speed/both over time. One or two surface pit marks can be repaired but some prep is needed which, in practice, means making the impact crater large enough to accept a viscous liquid. Often referred to as vanity repairs, this is popular with used car sellers. The cured resin will gradually discolour or wear under wiper sweeps; the poorer quality resin ones may even shrink; lesser prepped fills sometimes drop out.In your case, the windscreen surface has been grit-blasted. There is no cure for this. I've seen some detailers/DIY-ers boast how they polished the windscreen and achieved notable success. Maybe so but polishing that much glass down will definitely result in distortion or create a 'lensing' effect.
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