Funny thing happened at the worktable

[retired & glad]

A couple days ago I was out of acrylic primer, so I went to the store and bought a can of sandable primer. I have decanted before and remember what happened when I didn't let it sit for a day to release all the stuff in the bottle after spraying some in it. I let it sit on the table with the top unsnapped yesterday and even swirled it a little during the day with nothing happening. I was at the bench airbrushing a body today and after it was over, I snapped the cap down on the primer in the bottle. I wanted to shoot some spoons with it and after shooting a body 2 days ago with the rattle can, I could have painted 5 cars with what came out of the can in just a few seconds. In the purple power it went. So I thought I would just spray some in a bottle and use the airbrush with it. I thought after 2 days of sitting without the cap snapped on it would be ok. I shook the bottle just a little and unsnapped the top. I had black primer everwhere. Thank goodness the body I had just finished was in the dryer and didn't get any on it. Lesson learned. Don't shake the bottle after decanting from a rattle can. 

Thank goodness the acrylic primer will be here tomorrow.

Richard

[Art Anderson]

A couple days ago I was out of acrylic primer, so I went to the store and bought a can of sandable primer. I have decanted before and remember what happened when I didn't let it sit for a day to release all the stuff in the bottle after spraying some in it. I let it sit on the table with the top unsnapped yesterday and even swirled it a little during the day with nothing happening. I was at the bench airbrushing a body today and after it was over, I snapped the cap down on the primer in the bottle. I wanted to shoot some spoons with it and after shooting a body 2 days ago with the rattle can, I could have painted 5 cars with what came out of the can in just a few seconds. In the purple power it went. So I thought I would just spray some in a bottle and use the airbrush with it. I thought after 2 days of sitting without the cap snapped on it would be ok. I shook the bottle just a little and unsnapped the top. I had black primer everwhere. Thank goodness the body I had just finished was in the dryer and didn't get any on it. Lesson learned. Don't shake the bottle after decanting from a rattle can. 

Thank goodness the acrylic primer will be here tomorrow.

Richard

Don't your airbrush jars have a small "vent hole" in each cap?   If so, make sure those are open before decanting and spraying.

Art

[retired & glad]

Don't your airbrush jars have a small "vent hole" in each cap?   If so, make sure those are open before decanting and spraying.

Art

Hey Art

I used a plastic paint bottle that was left over from using and didn't use the kind I have plenty of with the hole in it. I've been playing with all the airbrushes I have and was using a Badger Krome at this time. Should have used the paasche H or VL with the hole in the cap. I guess I shouldn't have shook it a couple of times like what had happened before when decanting. I just thought I would post something funny knowing what would happen but still did it anyway. Being 72 years old doesn't help any but I am having fun.

Richard

[peteski]

Paint decanted from an aerosol can has a lot of propellant (usually liquid propane) dissolved in the paint. It takes quite a while do degas.I usually leave the lid on the jar with decanted paint not fully tightened for few days. I occasionally swirl the paint and see it bubbling up.

[Art Anderson]

Hey Art

I used a plastic paint bottle that was left over from using and didn't use the kind I have plenty of with the hole in it. I've been playing with all the airbrushes I have and was using a Badger Krome at this time. Should have used the paasche H or VL with the hole in the cap. I guess I shouldn't have shook it a couple of times like what had happened before when decanting. I just thought I would post something funny knowing what would happen but still did it anyway. Being 72 years old doesn't help any but I am having fun.

Richard

Well, I'm 72 for just two more days!      Anyway, I used to decant as much spray paint as my paint storage jar would hold--and had to overcome the very same problem.  However, anymore, I've come to decanting just about the amount of paint I'll use in my Paasche H--add just a bit of lacquer thinner to that, which I've found causes whatever propellant dissolved in the paint (enamel or lacquer) to out-gas very quickly.   I figure that this is no more, no less likely to wind up costing me more in paint than simply decanting say, a full 1oz storage jar full.  If I see the need for a larger amount of paint (say I know that I'm going to be giving the model another pass with that same color, I simply use my color jar, and once I've done the first coat, I close down the "Material Control" on the -H, then place a toothpick in the vent hole in the bottle cap.  That will allow any propellant to escape slowly, so that when I have to shake that paint up again for remixing it, I don't get a lacquer or enamel "rattle can paint" Vesuvius eruption.  That's worked for me for a good 50 years now.

Art