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tmpt –
I use that combo (50/50, 60/40 Eth/Ace, 70/30 Eth/Ace) in a commercial spray application and in limited use as a wipe on, but not with transtint dyes.
Depending on your mix, you can alter the ‘open’ time of the dye stain to alter the dry time. It really depends on how you are applying the stains though.
For spraying, we use it as an accelerator for drying. The open time will affect the color of the finish, especially in more humid/warmer environments. Generally speaking, the faster it dries, the harder it will be to control how blotchy it will get and the more it will tend to lay up on the surface.
The converse of this is using 100% DNA has a tendency to be too wet, leading to what we call grain pop. It gives a mottled look to the grain and will hide the character in cherry and maple. I’ve seen this when using NGR’s as wipe on, and it’s something I personally don’t care for.
Acetone usually has a little bit of water (<3%) in it but that should not raise the grain much. A light sealer coat of your choice followed by a light scuff with 320 or higher sand-paper will take care of it.
You didn’t mention the color you are trying to achieve, but I’ll throw my $.02 in. I’ve experimented a bit with it, but the results weren’t as dramatic as expected. It will lend an aged look for certain, but isn’t what we were going for at the time, so the project was abandoned. We used a 7 day fume if I remember correctly, and the finished color wasn’t as dark as we were looking for. If you’re looking for a deep brown color, I’d opt for a stain first versus dealing with ammonia.
Another option is to look at slightly ebonizing the oak, but using a diluted solution. 2-3% iron sulfate in water or ethanol will lend a dark brown/grey cast to the oak. I did this on veneered panels, so it might require a different solution reduction, but anything above 15% will get you a black. You can always add more to get a darker effect. It can be made using white vinegar and steel wool left to soak for 3-5 days. Vent the container to prevent a potential disaster.
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