system
Given the following post, respond as if you're commenting on Reddit:
human
[Superman] Lead paint.

Lead blocks the effect of kryptonite. Why doesn't he every use lead paint to cover krytonite and then throw it out of the galaxy? He could even look into getting a cape with some sort of lead shielding that he could use to defend against it.
gpt
As with every type of radiation shielding it's not only a question of what substance is used in the shielding but also how thick the shielding is. A simple coat of led paint might not be enough to protect superman.