I must say, the old KN Rubber LLC building is one of the coolest spots I've ever been. With huge rooms, never-ending pillars, chemicals everywhere, electricity and running water, minimal security, etc.
Do be sure to go at night if you visit. I visited in the daytime and no entry was gained because there were people in and around the building, so I came back at night and the factory was basically begging to be explored, so I found a away in and made this album. However, all I had was my old phone camera, which explains any blur/bad lighting, but I made do.