system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel/MCU] Paint sticks to Captain America's shield, so it interacts chemically with things. What happens if someone shoots acid at him?
gpt
Paint actually doesn't stick to the shield. In the MCU, you'll notice that the paint job picks up quite a few burns and scratches.

In 616, it was colored while it was being forged: The Red Skull once painted a swastika over the top and it later burned off, revealing the red, white, and blue.