Menzerna product expiration

[YankeeFan]

How long can the product line last? Some of mine have manufacture dates of 2007. Still dispenses well, just curious if old product is used it can have a bad effect on paint when using a rotary.

Thanks,
Howard

[Rsurfer]

5 years, that's pretty dam good. If it lumps up it's time to trash it. Mike P has some polishes that are around the model T days.