So I’m workin on a piano. It’s not my first, but on the last one I did, used a conversion varnish (sherwin wiliams) over a shellac’d walnut, which came out really great, especially for my first attempt. My current piano is going to be a white lacquered finish. Will I be able to get the same gloss and durability out of a sprayed and polished lacquer, or should I do some other combination and end up with the CV. Please be specific as I’m still learning about finishes. Recommendations to manufacturer etc. Thanks in advance
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A quick look at Sherwin Williams web pages shows pigmented conversion varnish. I haven't used this product so can't make a specific recommendation. I'm assuming from your post that you have suitable facilities for spraying such hazardous products safely, both for yourself and your "neighbors".
Steve, shortly after I posted this i saw the pigmented CV from SW. I think I'll go that route, as it will kill three birds with one stone. One board suggested it could be used as a primer as well. The last place I sprayed, I did have an exhaust system with filtration, I will have to get something similar in my new digs. The stuff is heavy, you usually need ventilation low. I doubt that the neighbors would like it if I vented it right through to the sidewalk. I'll figure it out. Safety is optional anyway, right. :)
I do suggest you read the MSDS. If the ingredient list doesn't suggest caution, there are specific cautions given.
Thanks, I've used the
Thanks, I've used the water-white CV before, I'm aware of the safety precautions. Respirator, spray booth and ventilation. We only get one set of lungs right?
After the white lacquer - long curing period - you will be able to polish up to a high gloss.
I don't know the long term effects of CV over lacquer -
I would be careful before going in that direction
SA
What species of wood are you painting? CV is limited to 4-5 mils dry film thickness which means you shouldn't be using it on an open pore wood for a high gloss finish unless you fill the pores first (The finish can check badly if you exceed this). SW makes a white vinyl sealer which they recommend as a primer under the white CV. I would use that. CV is VERY temperature sensitive, don't use it or allow it to cure for 48 hours in temps under 65 degrees (Cold checking is your payoff here). I would use a 2k polyurethane finish myself and if it is an open pore wood I would use polyester as my primer.
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