De-yellowing

[Ali]

> MARCH is having a repair workshop this weekend at our museum in NJ.
> We're going to use a product called "BBlonde" which is made for women's
> hair but apparently works pretty well on yellowed plastic.

Evan,

Is this something you need to mix like Retrobright? Or is it ready to go out
of the bottle? Also any long term experience with it? From discussion on VCF
it seems as Retrobright fails after some time passes (i.e. re-yellowing
occurs). I'd be interested in hearing/seeing the results.

-Ali