World Trade Center

Following the February 26, 1993 terrorist bomb attack that caused an explosion at New York’s World Trade Center high rise buildings, the Port Authority of New York and New Jersey, owners of the World Trade Center, decided to install Permalight® photoluminescent safety markings in their facilities.

Blue masking tape on grey concrete steps
Multiple layers of Epoxy Paint rolled on

Painters roll on white epoxy primer
Masking tape removed, clear protective coating applied

Masking tape removed, clear protective coating applied
In use 1 year later