finish over post-catalyzed lacquer (no spray possible)

[marc ta]

I am to refinish a very large table (6'x15') which was originally finished with a post-catalyzed lacquer.  

 

I cannot use a spray finish because of location constraints (people working in nearby room, no adequate ventilation possible, etc.).  Also, I cannot strip the table to bare wood because the tabletop is a thin veneer.

 

It has been cleaned with TSP, sanded with 400 grit and wiped with liquid sandpaper.  I tried to roll a waterbased floor polyurethane (Saman Extreme), but it peels off pretty easy and there were lots of fish eyes.  I've just learned about applying dewaxed shellac first to prevent fish eyes (thanks to this forum), but I am still a little hesitant about recoating with the waterbased poly.  

 

Any recommendations as to what finish will stand the test of time?  Perhaps an oil-based poly (Helmsman spar urethane) or a brushing lacquer?

 

Airborne dust particles landing on the tabletop are also a concern. Thats why I used the waterbase poly to begin with;  because it dries fairly quickly.

[wdwerker]

You are way outside my comfort zone. I would be on the phone with my finish supplier and see if he has a recommendation . I don't think consumer grade finishes will be appropriate .

[dwacker]

Nope. Once it cured you can't finish over catalyzed lacquer  even with the same lacquer. Once its catalyzed it has good chemical resistance.

[marc ta]

Thanks for the tip.  I've managed to peel off the waterborne poly today without damaging the lacquer finish. phew.  I've heard about using dewaxed shellac on the table first to seal, then proceed with whatever finish