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Forum topic by DonJ posted 07-08-2015 07:44 PM 552 views 0 times favorited 4 replies Add to Favorites Watch
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DonJ

250 posts in 2995 days


07-08-2015 07:44 PM

Over the course of 6-7 months, I’ve applied about 30 coats of lacquer on a box I’m making. My process was to spray on 5 coats with an hour or two between coats. After 30-45 days, I would block sand with 320 to level the finish, then reapply the 5 coats, etc. In prep for my last set of coats, I first leveled the top and then set it upside down on those little plastic triangle things while prepping the box bottom. Not sure how it happened, but one of the triangles put a substantial devvit on th top of the box. It appears the devvit is in the lacquer build-up itself. I don’t want to take it down to bare wood…so, would it work to put a drop of non-cut lacquer in the devvit to fill the void before the next/final sanding in 5 weeks?

-- Don, San Antonio, TX


4 replies so far

View johnstoneb's profile

johnstoneb

2150 posts in 1640 days


#1 posted 07-08-2015 08:15 PM

You will probably have to put several drops in the divot as only the solids will stay the solvent will evaporate out. the lacquer will soften and bond with the older lacquer.

I don’t understand why the long wait before sanding you should be able to sand after 24 hrs without any problem. I have wet sanded lacquer after 4 to 6 hours without any problem but usually wait at least overnight.

-- Bruce, Boise, ID

View mahdee's profile

mahdee

3555 posts in 1235 days


#2 posted 07-08-2015 08:15 PM

Not sure why you wait 5 weeks but if you could fill the void while preventing runs, I bet it will work. I have never done it with a deep area but it works for shallower one and since lacquer melts in itself, it should work. If you use any tape to create a wall, be sure to read and make sure it is OK for lacquer. Most blue/masking tapes warn it should not be used on lacquer surface.

-- earthartandfoods.com

View Bill White's profile

Bill White

4459 posts in 3428 days


#3 posted 07-08-2015 09:09 PM

Take a toothpick, use it to add successive drops of lacquer in the hole until it is built up above the other surface, sand flush. You’re done.
Bill

-- bill@magraphics.us

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DonJ

250 posts in 2995 days


#4 posted 07-08-2015 09:55 PM

Thanks for the response…I was hoping that would be the case, but wanted to verify with the experienced ones. In regards to waiting periods, I thought I read the need to wait that long so it wouldn’t gum up. I’m thinking it was from an Ed Sallee post…maybe not. I’ve put a couple of lacquer droplets and it appears to be drying proud of the divot (thanks for correcting my spelling). I’ll give it a week and do some sanding to see if the “mend” worked.

-- Don, San Antonio, TX

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