lacquer durability?

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On Thu, 23 Aug 2007 21:22:17 -0700, snipped-for-privacy@aol.com wrote:

No! I'm watching this with great interest. Put 'em on a.b.p.w, PLEASE!

Ditto .. ditto .. ditto .......
And thanks to Robert for sharing his "secret."
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Art Greenberg
artg at eclipse dot net
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snipped-for-privacy@aol.com wrote:

Seriously ... I (and apparently others) have been keeping a keen eye on this thread. Winter is just around the corner and I have allergies to using solvent-based finishes near pilot lights.
Bill
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I'm not not at the above address.
http://nmwoodworks.com
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Not familiar with Hydrocote but Lacquer is way more brittle than poly. It may be an adhesion problem but more likely applied to thickly per coat or sharp corners. This is why I think it is critical with Lacquer to spray it in a hatch pattern of crossing directions in thin coats. It might be just my perception but this seems to toughen it a little bit.
I hear some folks like per-catalized Lacquer now days. I might have heard its harder and less brittle but not sure that is true. Maybe someone can comment.
Me, If I use lacquer any more I put it on very thin. Fast and easy and doesn't chip, etc. I love it. Don't use it much on tables anymore ibecause of wear problems I favor wipe on poly.

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Not sure my previous post made it up but i answered my own question about pre-catalyzed lacquer. Looks like catalized lacquers are tougher!
http://www.taunton.com/finewoodworking/pages/w00060.asp ?
(Scroll down to a few short paragraphs on Lacquer)

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SNIP

SP - they are a lot harder. The Sherwyn Williams rep here keeps trying to get me to test his stuff out, but at this point I am not interested.
I have heard different things about the cat lacquers, some good and some bad. I know that one of the local cabinet shops got the ratios off a little on the post catalysed, and had hell to pay as the finish wouldn't harden.
He also told me that they are heat sensitive (it was about 100 here today!), had to sprayed with high pressure guns to get a really good finish, and the smell would choke a hazmat specialist.
Like you I spray multiple thin coats to get what I want, and out of my HVLP system. I would be worried about something goofing up my second and then topcoat of finish if I were waiting on catalysing, or anything else that could be weather and temp affected.
I would >>really<< like to hear from you (as would several here I would bet) about what you think of the stuff if you decide to take the plunge.
Robert
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Yeah, after my quick read on the pre-vs-post acatalized I think I would opt for the pre-mixed stuff to avoid a bad mix. I wonder if you can use the normal retarders, blush and flash control and dryers withe the cat type lacquers. With the NC lacquers I always play with the amount of thinner depending on the temperature and often use the flash control on hot summer days and driers in the cold of winter, although I have sprayed on too cold of a day and paid the price.
If I do shoot any cat lac I'll write here but nothing for that in the pipe right now.
wrote:

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I got a chuckle out of that. As much of an information obssessed addict as I am for anything I am doing, I don't even have a faint clue if you can use all the "stuff" we use with NC. I know you can use lacquer thinner to clean the guns >as long as< the pre cat/post cat hasn't gone off completely.
That's not much, eh? I don't know about you, but I am just not in the mood to learn all the little ins and outs, the little idiosyncrasies of another finish. And I am not going back to high pressure unless my HVLP breaks down.

Good enough. I'll keep an eye out. I have a feeling you will be there before I am.
Robert
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