Aniline dye bleeding

bdcues

bdcues

AzB Silver Member
Silver Member
Wondering if anyone else has had trouble with aniline dye bleeding through the finish. I recently refinished a cue with a handle that is stained black. Applied 6 coats of PPG and all was fine. 2 weeks later the cue is bleeding black through the finish. Is there a way to "set" the dye so it will not bleed. I am using the water-based powder from Luthiers Merc.
Many thanks, Bob
 
bdcues said:
Wondering if anyone else has had trouble with aniline dye bleeding through the finish. I recently refinished a cue with a handle that is stained black. Applied 6 coats of PPG and all was fine. 2 weeks later the cue is bleeding black through the finish. Is there a way to "set" the dye so it will not bleed. I am using the water-based powder from Luthiers Merc.
Many thanks, Bob
Click to expand...

I take it you didn't use any sealer. Sealer good, bleed bad.
 
I would have thought that the PPG would be a good enough sealer. It is after all just epoxy. I will try it again with superglue or something first. Thanks.
 
bdcues said:
I would have thought that the PPG would be a good enough sealer. It is after all just epoxy. I will try it again with superglue or something first. Thanks.
Click to expand...

A sealer is used to make a good bond between the subsurface and the finish. It has to readily stick to the subsurface and leave a surface that the finish can easily adhere to. It should be fast drying and in fact, the faster it dries the better it works as then oils or such which may be in the wood do not have as much time or a chance to migrate into the sealer compromising it.

It would seem that a fast drying finish as a auto urethane would be a good sealer as it dries pretty quickly. Perhaps there is some solvents of some kind in the finish that reacts with the dye even though it does use a hardener as a catalyst. Are you sure that the dye had a chance to dry thoroughly? Water base stains usually need about 2 days to dry completely. I use alcohol based aniline stains when I use a stain as they dry much quicker.

Dick
 
It's possible that the dye was not totally dry. I am going to buy their alcohol soluble dye next. The PPG certainly does not cure instantly, or close to it, but I would still think that after the first 2 coats had dried for 24 hours that the dye should not come through. Obviously, I am missing something here. lol :)
 
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