Toning Liquid Emulsion

I have been trying out Fotospeed's liquid emulsion on flat raw maple veneered timber and like the results I'm getting. To make it archival, I presume toning it is no different to toning a paper print. Am I right?

Also, does anyone know if the timber will react to the emulsion over time. I know if maple timber is polished with a clear lacquer, it will darken (mellow) a little over a few years. I wondered if the emulsion might have a similar affect.

Any thoughts?

Peter

I think maple (as most woods, except walnut & vermillion (I can't remember if Padauk is its other name) & some other exotics) darkens with age, whether lacquered or not.

Also, supposedly the water-based urethanes aren't supposed to 'yellow', at least the couple I've run into (sorry, no names, just heard or read about them).

Thanks Murray.