Author Topic: How do you all store thinned paint?  (Read 772 times)

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Offline fignewton

  • Posts: 97
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How do you all store thinned paint?
« on: April 19, 2020, 07:33 AM »
Howdy.  Just got a new Mini-Mite 4 Platinum and GxpC gun.  I'm building shaker doors for kitchen and will be shooting BM Advance.  Have learned all about viscosity, using 1.8 needle/nozzle/cap, etc.  My questions have to do with thinning and keeping paint. 
Right now, I'm playing with only 2 doors.  I'll thin a part of a quart and shoot only enough to get first coats on one side.  What do I do with the left-over thinned paint?  Do you all:   
    - Pour it back into the original can? (I'll only be spraying this, so don't mind diluting the remainder.)
    - Store it in another container and then re-check viscosity before using for next coats?
If I add the thinned left-over to the original can, I know that that dilutes it some.  Does this present any problems for using it in the future, given that I'll check viscosity each time I set the gun up?
Any other thoughts or tips based on your methods and experience?    Thanks!
TS55, MFT3+, OF1400, C12, CT-26, LR-32 system, Domino 500, RO125, MFK 700, Carvex w/ accsy, Sys-roll,  CXS, Kapex, UG with extensions, RO90

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Offline Jim Kirkpatrick

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Re: How do you all store thinned paint?
« Reply #1 on: April 19, 2020, 08:09 AM »
I have the same spray rig and Advance is my paint of choice.  I store it separately using either a plastic or metal paint that I buy at HD.  If you're stuck on measuring viscosity, pouring it back in original can makes sense.  After you spray it enough, you'll learn the right mix and you won't need to measure viscosity, you'll do it by eye.  Plus if you ever need to touch up with brush, you'll have the original can at full strength.

Online Alex

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Re: How do you all store thinned paint?
« Reply #2 on: April 19, 2020, 12:58 PM »
Just pour it back in the original can. It is not all that critical as you think.

Offline Pnw painter

  • Posts: 216
Re: How do you all store thinned paint?
« Reply #3 on: April 19, 2020, 08:39 PM »
Unless you plan on using the same paint to brush something out, I’d also recommend pouring it back in the original can.


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Offline fignewton

  • Posts: 97
  • "Fine Quality Sawdust"
Re: How do you all store thinned paint?
« Reply #4 on: April 20, 2020, 08:53 PM »
Jim K, what needle are you using for spraying the Advance? I am using the 1.8 #5, but I see folks on UTube using the 1.5.  I’m still practicing on a couple of doors, and love the sheen of the gloss white.  I sanded 2 coats of primer to 220, shot my first coat, sanded again with 320 this morning, and shot another coat. It could be smoother, and I can see some sanding marks, even though it felt super smooth before spraying.  Sand and shoot a 3rd coat?
TS55, MFT3+, OF1400, C12, CT-26, LR-32 system, Domino 500, RO125, MFK 700, Carvex w/ accsy, Sys-roll,  CXS, Kapex, UG with extensions, RO90

Offline Jim Kirkpatrick

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Re: How do you all store thinned paint?
« Reply #5 on: April 21, 2020, 10:01 AM »
Jim K, what needle are you using for spraying the Advance? I am using the 1.8 #5, but I see folks on UTube using the 1.5.  I’m still practicing on a couple of doors, and love the sheen of the gloss white.  I sanded 2 coats of primer to 220, shot my first coat, sanded again with 320 this morning, and shot another coat. It could be smoother, and I can see some sanding marks, even though it felt super smooth before spraying.  Sand and shoot a 3rd coat?
You’re on the right track. I use the 1.8 for paint and a 1.3 for bin primer.  Do you have the 3M pps? I can’t recommend it highly enough. It has a built-in screen filter and it makes cleanup a snap.  I also thin with auto wiper fluid and add some Floetrol to help lay it out smooth.


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