13th-Mar-21, 12:42 AM
Interesting picture ...
... in that is shows a ribbon of damage, BUT only across the right third as shown above.
Close examination of the left side shows an odd irregular looking loop that looks like it's ready to let loose if you were to persist.
At a glance, Captain Obvious notes that the material has a cohesion problem with itself. The nasty reaction to the grinding action looks an awful lot like trying to grind, sand, or file on a poorly mixed product that isnt uniformly catalyzed. Most of us have had a dreaded part A and part B incident ... LOL. They might just be unsuitable for slot car consumption, as many H0 enthusiasts discovered about certain tires. There's tires, and there's "tireds" (of trying to make it work)
Unless proven otherwise, Im not always keen on a petroleum distillate coolant for things that arent metal. One might try a common liquid dish detergent, maybe slightly thinned; or not. Plenty slippery, prevents fouling; and maybe wount devour the sticky back of your grit. 240 might be too big a bite. Go up a hundred or two, and try a nonvolatile coolant.
All this spitballiing with my usual disclaimer of: I have been wrong before, but nothing ventured is nothing gained.
Good luck!
Bill
... in that is shows a ribbon of damage, BUT only across the right third as shown above.
Close examination of the left side shows an odd irregular looking loop that looks like it's ready to let loose if you were to persist.
At a glance, Captain Obvious notes that the material has a cohesion problem with itself. The nasty reaction to the grinding action looks an awful lot like trying to grind, sand, or file on a poorly mixed product that isnt uniformly catalyzed. Most of us have had a dreaded part A and part B incident ... LOL. They might just be unsuitable for slot car consumption, as many H0 enthusiasts discovered about certain tires. There's tires, and there's "tireds" (of trying to make it work)
Unless proven otherwise, Im not always keen on a petroleum distillate coolant for things that arent metal. One might try a common liquid dish detergent, maybe slightly thinned; or not. Plenty slippery, prevents fouling; and maybe wount devour the sticky back of your grit. 240 might be too big a bite. Go up a hundred or two, and try a nonvolatile coolant.
All this spitballiing with my usual disclaimer of: I have been wrong before, but nothing ventured is nothing gained.
Good luck!
Bill
Where some must die, so that others may live.
![[+]](https://slotracer.online/community/images/bootbb/collapse_collapsed.png)