I am having a bad experience with General Finishes. Hoping it's an anomaly, but fearing that it may not be and not willing to "throw good money after bad."
I have been using General Finishes High Performance top coat on all my builds. However a few days ago I noticed that there was a problem one of my necks. I had noticed that there was some greening around the fret ends in a few places but did not think much of it. However, in this case it seemed to have "bubled up" a bit so that I could feel a bump. I scratched it with a fingernail and some of the finish came away on the back of the neck. It seemed...at least in that strip, to have gotten softer. This is on a neck that I have been playing regularly for a couple of years. I have some greening on one other maple neck, but, at least for now, the finish seems hard.
It is looking like I have one, maybe two or three, neck re-finishes in my future. So I tried to consult with General Finishes to find out what gives. They don't take calls or emails, but do all customer support through a Facebook page called "General Finishes University." What they told me there is that their top coat does "breaks down" from contact with "hand oils," that they only recommend it for "fine wood furniture" and that the greening is probably from the water contacting the metal.
In point of fact, they actively promote the use of their top coat for use in guitar and instrument finishing on their website, and responded very favorably when I asked them about this before I ever used it. But that is water-based poly under the bridge. (Just kidding, although I am tempted to throw out the rest of my GF top coat off a bridge, I won't. They may have been lying about it's environmental friendliness too for all I know.)
The most important question is what to do now? I know folks there have successfully used Cabot's water based poly, but although some Cabot's products are sold in the US, that does not seem to be one of them.
So here are the options I have been able to ID that I should be able to get:
Crystalac Brite Tone
Crimson Guitars Water Based Wipe on Guitar Finishing Lacquer
Anthem Instrument Finish Top Coat
StewMac ColorTone Wipe On Poly
ICRO 5000
Deft Interior Exterior Water-based Polyurethane
Has anyone used any of these? I have used Crystalac once before...and it seemed OK. It seems to be one of the more common ones used on YouTube. I have seen Anthem used on YT also.
I like the idea of trying to do it as wipe on rather than brush on which is what I have done up to now. While I used Crystalac with a brush, I have seen it used wipe on on YT. ColorTone and Crimson also say specifically that they can be wiped on.
Deft is probably the only one that I can get without ordering it on-line. I know it has been used on guitars, but will need to do a bit more research. I have also heard that there are people who use the ICRO products, but it's new to me.
Will welcome any thoughts or suggestions. I work in a garage, and am married to an environmental engineer who does not want me bringing toxic products in the house. It's dicey to work outside here due to humidity and heat. That has driven a lot of my finishing choices...and will likely continue to do so for better or worse B-)