Brake fluid will eat up alot of junk. It'll strip paint, and it'll eat plastic. What you're doing by putting the brake fluid on plastic is dissolving the outer most layer of plastic. It will look level and even more clear. But you are really damaging the plastic.
But what are u trying to say that brake fluid eats through plastic? Hmm i better get a metal brake fluid container wait they shouldnt sell it in a plastic bottle either its worked on every car ive seen just fine so do armoral wipes its just filling in the micro cuts mr. Im so effin smart ill let u know if ur right though
Really? I can give you an example of the quote below too. I had a really strong degreaser, it came in a plastic one gallon jug. I put it in a plastic squirt bottle and within minutes the squirt bottle had softened up and leaked.