The inner edges were not blistering, that was pickup on the inner front right. It looked bad, but it was inconsequential.aral wrote: ↑09 Aug 2020, 21:10Of course it was about blistering, but the fact is that the Mercs were blistering after only a few laps. Whereas the RB was not blistering. So, either the geometry was at fault, putting unusual strain on the tyres, or else the drivers....both of them....were pushing the cars too hard. And as regards tyre pressures? All cars had to run with the same pressures.zibby43 wrote: ↑09 Aug 2020, 20:46
It's not a matter of over-driving. Or tire degradation. It was a matter of blistering today.
Blistering occurs when a tire overheats. The excess heat causes the tread to soften, and then it starts to break away.
What factors can cause overheating? Several, but 2 of the most important are: 1) over-inflation and 2) high track temperatures. The third factor is how much the car is asking from the tires, and the Merc demands a lot due to the downforce it generates, but it is a very well-sorted car on the suspension front, which is why, the vast majority of the time since '19, Merc has had class-leading tire wear.
I also don't think there is anything Mercedes could've done in qualifying to make themselves slower in qualifying, and subsequently faster in the race. Those setup choices and the trade off between race and quali pace are more relevant when it comes to degradation, not an anomaly like blistering.
Kind of like how Mercedes goes with a low rake concept to be well-rounded and fast at the majority of circuits on the calendar, they design the car/suspension to consistently energize/work with the harder compounds that are used on race day, in a temperature range that best represents most of the calendar.
For whatever reason, the Red Bull struggles to get the best out of their car in the circumstances that apply to the vast majority of races, but on those one-off days when the tires are pumped up to levels approaching the PSI of a 19" road car tire and the track temperatures are 40+ C, the car just suddenly works.
Note that apart from the inner edges of the fronts blistering, the rears were blistering in the centre
Merc blistered their tires because they were battling side by side for the first few laps and pushed hard after their first pit stop. They pushed too hard in the early laps of each stint. Also they were close behind other cars, leading to a loss of downforce and more sliding, raising the surface temps of the tire.