View Full Version : WB Laquers?
William Young (snowing li
11-28-2001, 08:26 PM
I've seen mention of WB laquers. I'd like brand names and info on how they differ from WB urethanes and varathanes which I dislike and don't use.
W.Y.
Roman
11-28-2001, 10:38 PM
Im not sure and I love to be wrong cause often this is the only way I learn.
water based lacquers are polyurathanes.
under some new name and a new process of applying
Regards
William Young (snowing li
11-28-2001, 11:06 PM
Thanks Roman; If thats the case, I'll steer very clear of them. Lots of &%$#%& marketing gimmicks out there.
W.Y.
Paul O in Paris
11-29-2001, 12:16 AM
WB lacquers are acrylic based. Waterbased urethanes are urethane based. The two are very different. There are mixtures of the two as well as water based vinyls, water based polyesters and self-cross-linking acrylics. As the name suggests they contain water as a carrier but there are a host of levelling, slippage, flow agents and as well as all sorts of additives to stop foaming, speed evaporating etc etc
WB products require a different set of pre and post application processes than NC lacquers. These take time and require some planning (eg mixing extenders or dyes 24 hrs before application for best results; rubbing down between coats; applying more but thinner coats). Dry times between coats may be longer than NC's and the cure time is much longer. These are causes of frustration to those impatient folk who want it NOW, and can cause bottlenecks in high production shops unless adequate space is available and a degree of planning is put into runs. Long time NC sprayers often find it hard/impossible to adapt to the different regimen.
If speed is not your concern and you haven't made the large investment in a spray booth, then WB lacquers are worth a try.
This is a field where technology is advancing by leaps and bounds. Yesterday I previewed some WB lacquers and varnishes that contain tung oil and linseed oil to give the finish that warm colour that is usually absent from these products. The lacquer also had the ability to chemically bond with the previous surface. Many of these products are almost as good as a shellac for a sealer coat if applied properly.
I use WB all the time, and like everything else in life, it needs practice and improvisation to get it right. I really like just how forgiving they are.
Just like tools, everyone has a favourite brand and right now I'm getting great results with Becker Acroma Akva-Line, but I'll try the new products from Target Coatings next week. I've had mixed success with products fom General Finishing, but that may have been "operator error" rather than a poor product.
Info on these products can be found at
www.beckeracromainc.com (http://www.beckeracromainc.com)
www.targetcoatings.com (http://www.targetcoatings.com)
Hope this helps......Paul
William Young (blizzard)
11-29-2001, 12:57 AM
Thanks for that info Paul. It's good to see some steps are being made to improve WB finishes. I've wasted enough time and money on the hardware store shelf varieties up till now so I will watch in earnest for results in the future of people that are having good luck with the *newer* formulas. Who knows' someday someone will come up with a WB product with the qualities that I look for in a finish.
W.Y.
Ken in Regina
11-29-2001, 12:59 AM
Thanks, Paul. That was really helpful, especially the part about longer drying and curing times. I much prefer to use water based urethanes. I've tried to go by the times on the containers but based on your info .. and my experience, they are hopelessly optimistic. After reading your post, and others in here, I have to adjust my time sense to about an order of magnitude slower ... not easy for an impatient person like moi.
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