I was asked to make a clear brake fluid level window.
That is for a bike, so it isn't very big.
Now since that ''window'' is in full contact with brake fluid dot4, I need to know what kind of material to use.
From what I have read most people use thick lexan.
But alsi I read that lexan is sensitive to any kind of solventing agents.
Let me know what you would suggest.(P.S. I could not find a better sub-forum for this)