I’m finishing a pair of tables by wiping on 1 part Sherwin Williams varnish and 1 part mineral spirits. The temperature in my shop is 60-65 degrees. The table bases dried quickly but the tops still felt like they were a little tacky when I impatiently wiped on a second coat. The bases dried again quickly but the tops don’t seem to want to completely dry. The edges are still a little soft. Its been over 24 hours and I moved them into room upstairs with a heater going to attempt to help.
Both the tops and bases were done with the same mixture at the same time, in the same room. Why am I having this problem? Any solutions?
Replies
Jeff,
Using Sherwin Williams would be part of the problem. ;-) I also suspect that the varnish is old.....
Dano
What's different about the top? Is it the same wood? Is it solid wood or plywood?
Also, your wiping varnish will dry faster if you use naphtha rather than mineral spirits. Wipe it on like the kid at Denny's wipes your table. Do it quickly, don't go over it--you'll get what you missed on the next coat. Only be careful on the final coat.
As Dano, suggests, is your finish fresh? Newer VOC compliant formulations of finishes have slowed down the drying quite a bit. Be sure to keep everything above 65 degrees.
Edited 4/4/2002 3:09:03 PM ET by Howie
Dano / Howie,
Thanks for the input. The can was right off the store shelf (no legible date). Normally I wouldn't have bought that brand. One of the contributing editors for FW uses it. I figured if its good enough for him, it ought to be good enough for me.
The tops are solid mahogany, the bases mahogany and mahogany veneer laminations for the curved surfaces. Checked them today. They are almost hard enough to sand and recoat. This time I won't rush it.
Jeff
Keep the temperature up and try the naphtha instead of the mineral spirits.
I will "third" or "fourth" the thought that Mineral Spirits were the wrong choice for thinning.
I have never heard of wiping on varnish however; I've always brushed. Lay it down, tip it once, leave it alone. The temp you mentioned should allow it to flow out well.Steelkilt Lives!
I ended up stripping the varnish and will start over. This time its naptha and patience before applying a second coat.
Jeff,
If you apply finish the way I do, you layed it on a little (or a lot) heavier on the top than the verticals. I fight this tendency all the time. The top needed more time to cure, but you applied a second coat, sealing in the uncured varnish. Without exposure to air, the bottom coat may never dry. I'd remove the finish from the top and re-do it.
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