Strange marks on the paintwork with no obvious cause pose a conundrum
THIS MONTH – the curious case of the stripy bonnet… With the Gt2 laid up over winter under a car cover, I checked it every couple of weeks or so for damp, mice, battery charge and all the other things that winter storage can conjure up.
One day, I pulled back the cover and a strange mark on the bonnet caught my eye – it looked as if something had dripped on it and then run down it, leaving a stripe. A good rub with a microfibre cloth didn’t make a difference, which was odd, so I phoned Gtechniq to ask if it was anything to do with the Crystal Serum paint protection that was applied late last year.
‘Very unlikely’ came the response. Not only that, but having also seen some photos of the mark, Gtechniq was stumped as to what could have
Tcaused it, and offered to send out one of its detailers to inspect it. the mystery deepened, even after an inspection by an expert detailer. I wondered if brake fluid could have caused the mark (even though the car had not been anywhere near brake fluid over the winter), but Gtechniq didn’t think this would penetrate the serum. Nevertheless, Gtechniq tested some DOT 4 brake fluid on the serum back at its lab and… the serum did indeed repel the fluid! Cue some more headscratching.
Using a machine-polisher took some of the stripe away, but it was still visible, and with the rest of the car pretty much perfect, it was really bugging me. Also, having put all my spare cash into my 911 SC, I didn’t really have much left in the piggy bank for a respray for the Gt2’s