NGR Dyes…
Welcome! / Forums / General Woodworking Discussions / Finishing / NGR Dyes…
- This topic has 5 replies, 5 voices, and was last updated 7 years, 7 months ago by David Perrott.
-
AuthorPosts
-
NGR dyes. I was recently told that I could use Transtint dyes with acetone AND denatured alcohol. I’ve never used acetone for anything other than cleaning schmootz from surfaces. Does anyone have any experience with that particular mixture? I was initially going to use denatured alcohol exclusively, but if there is a benefit to using acetone/alcohol mixture, I’d loved to hear it.
TimNGR dyes. I was recently told that I could use Transtint dyes with acetone AND denatured alcohol. I’ve never used acetone for anything other than cleaning schmootz from surfaces. Does anyone have any experience with that particular mixture? I was initially going to use denatured alcohol exclusively, but if there is a benefit to using acetone/alcohol mixture, I’d loved to hear it.
tmpt,
Just because you can doesn’t mean you should. 🙂
The Transtint dyes are soluble in both Acetone and Ethanol or other alcohol as they are all polar solvents…so is water.
From their lit:
“TransTint Dyes are a single component concentrated
metallized acid dyestuff dissolved in a glycol ether carrier. The product is designed to be let down
with a polar or mildly polar solvent such as water or alcohol”See attached link to their Technical Data Sheet…good info.
http://homesteadfinishingproducts.com/wp-content/uploads/2014/04/TransTintTDS-7-2013.pdf
I see no advantage in using Acetone…might dry too fast to keep from streaking.
I’ve used these by diluting 1 oz (vol.) in 8 oz of Ethanol.
Without the water the grain raising is minimal.
Also,since Ethanol is the solvent for Shellac, the dyes can be used to tint that to get any color you might like.
Best,
Craig- This reply was modified 8 years, 6 months ago by Craig.
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.
23 September 2016 at 4:28 pm #140815I’ve used Lockwood dyes dissolved in alcohol. It was pretty simple to use. It’s not more difficult to use then shellac. On a big surface like a table top it may be helpful to put a bit of a retarder in it.
-
AuthorPosts
- You must be logged in to reply to this topic.