good question, i dont really know i dont plane on finding out though.

Interesting. I can get a 32oz bottle of this stuff off amazon for 29 USD shipped. I happen to already have a blacklight as well How much of this stuff did you use in the process of de-yellowing this case? Curious as to how many cases 32oz would get me.

enough to cover the entire case, i just used a tooth brush to smear it all over it doesn't have to be thick.

Also do each side individually, rinse of with water, dry and apply to the same side after a couple hours until it looks white and then flip case over and do the sides one at a time. Make sure the black light is close and is shinning on the entire area.