Just about anything will go over a stain finish, but as DT contains oils and waxes, there are a lot of finishes that won't sit well on top of it (though I'm sure TruOil has been used by others here on top of DT.
The only warning against water-based stains is on veneer tops, where the thinness of the veneer means that if used very wet (and most pre-mixed stains are mostly water) the water can penetrate the veneer enough to affect the glue and you can get the veneer lifting and bubbling. Not an issue with solid tops or maple caps etc, and videos of stains normally show a very wet application. But water based stains on thin veneers are best used with multiple applications, each one as dry as possible. If possible it's safest to use a metho or turps based stain. The concentrated stains (like the StewMac ColorTone range) can normally be used with any thinner - water, metho, turps etc.
Last edited by Simon Barden; 15-01-2017 at 09:42 PM.