Author Topic: stacking lacquered parts  (Read 602 times)

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Offline mrFinpgh

  • Posts: 235
stacking lacquered parts
« on: December 06, 2017, 11:06 PM »
Is a bad idea, apparently.

I had read somewhere that you could stack lacquered parts after about 24 hours of curing.  So I did that, and even put some wax paper between them.

Apparently I should have covered everything with paper, because where two panels touched, it was like weak glue to separate them.  And of course, the finish got torn off in the process.   [huh]

Since I can't really spray again until the spring time, any suggestions for how to touch it up?  It's just for my personal kitchen.

Thanks,
Adam

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Offline tjbnwi

  • Posts: 5306
  • Cedar Tucky Indiana
Re: stacking lacquered parts
« Reply #1 on: December 06, 2017, 11:20 PM »
What type of lacquer? Waterborne or nitrocellulose?

Tom

Offline mrFinpgh

  • Posts: 235
Re: stacking lacquered parts
« Reply #2 on: December 07, 2017, 08:31 AM »
Waterborne pigmented lacquer.


Offline tjbnwi

  • Posts: 5306
  • Cedar Tucky Indiana
Re: stacking lacquered parts
« Reply #3 on: December 07, 2017, 08:37 AM »
A better barrier sheet than wax paper is 0.5 mill painters plastic.

Why can't you spray them again until spring? Prep them, wait until a decent day, spray, bring in conditioned space to dry. You should only need to spray one side of each panel.

I have done minor touch ups on WB lacquer with a dab and brush. Sounds like the areas you need to deal with are to large for that.

I have stacked and packed parts within 24 hours with no issues.

Tom

Offline escan

  • Posts: 25
Re: stacking lacquered parts
« Reply #4 on: December 07, 2017, 11:26 AM »
I use a 4" white foam roller to do touch-ups. Try to roll out the initial bubbles so the new material flattens out and then light sanding for additional coats. I use target/em-tech not sure about other WBs.

In the spring you can respray, if needed.

Offline mrFinpgh

  • Posts: 235
Re: stacking lacquered parts
« Reply #5 on: Yesterday at 10:53 PM »
A better barrier sheet than wax paper is 0.5 mill painters plastic.

Why can't you spray them again until spring? Prep them, wait until a decent day, spray, bring in conditioned space to dry. You should only need to spray one side of each panel.

I have done minor touch ups on WB lacquer with a dab and brush. Sounds like the areas you need to deal with are to large for that.

I have stacked and packed parts within 24 hours with no issues.

Tom

In Pittsburgh, it probably won't be decent for another few months now.   It has been around 30 degrees the past few days.  I spray in the basement, where it's a little warmer, but it feels like it will make sense to just hold off until springtime and I will prep and respray things then.

I read something that suggested that thinning can extend the time it takes for waterbornes to cure and become safe from blocking.  I had to add about 10% water  to spray through my 4 stage, so perhaps that's also playing a role in it.  I didn't run into any problems with stacking the drawer parts I sprayed with clear lacquer.

I'll have to remember the plastic next time.

Thanks,
Adam

Offline mrFinpgh

  • Posts: 235
Re: stacking lacquered parts
« Reply #6 on: Yesterday at 10:55 PM »
I use a 4" white foam roller to do touch-ups. Try to roll out the initial bubbles so the new material flattens out and then light sanding for additional coats. I use target/em-tech not sure about other WBs.

In the spring you can respray, if needed.

Thanks.  I ended up just using a foam brush to touch up the spots where it got damaged.    I was also using Target EM6500.   Fortunately, I have at least half a gallon remaining for respraying.

Thanks,
Adam