In the plastic industry, what's the meaning of 2X after a Pantone reference ?
802 C2X compared to 802 C
From the Pantone Website
2X = double impression, usually referred to as a 'dry trap', where a color is printed, dried back, and then overprinted a second time to produce a more intense color.
So adding more saturation when printing.
However the website does mention that they have discontinued adding this to their system.
2X colors were deleted from the PANTONE MATCHING SYSTEM products back in 2000. The reason for this is because they were rarely used, and caused unnecessary confusion when they were specified.