What would you think the shelf life on a quart of dye like this would be?

http://www.volvette.com//images/products/600px/pt92.jpg

The shelf life should be on the can

I'll take a look tomorrow. The can is at home and I am at work.

How old is the dye

Well I forgot to look at the can today but it is about 4 years old, maybe 5.

Looked on the can and it doesn't say. I'll just have to try it on some parts and see.