Splitting up paint

D

drwebe

Hey all First post. Been reading everything here for a while. Lots of good info. I have one of those food saver vacuum bag sealers, you can also use jars. Was wondering if anyone has split up gallon cans into quart jars and sucked all the air out? Yeah I know glass is bad on a concrete floor, but cans are a real pain to pour out of no matter what.
 
I also do what shine does. I would think the bag would melt from the chemicals but even if it didn't I wouldn't store it that way.
 
I don't think I explained it right. I use a quart mason jar not the bags. The vacuum sealer comes with an attachment to seal canning jars. You put the canning lid on the jar and the plastic gizmo over the lid. The hose hooks to the sealer and sucks the air out of the jar.
 
you still have a rubber seal on the jar. bad idea all around. buy qrt cans and store it correctly . your also sucking flammable fumes into the machine .
 
Thanks shine that is what I was looking for, something I might be missing. Haven't done it with automotive paint just latex. Probably would get the machine high:)
 
There is a product called Bloxygen that is canned nitrogen that you spray into cans to preserve paint.
 
that's why i pour everything into qrts. very little air left. 2 qrts in a gal can are doomed. last qrt in a gal is useless .
 
I have never had any solvent based paint go bad ever. I have always stored them in metal containers of pint, quart and gallon sizes. Regardless of amount remaining, even after many years, a good stirring and they have sprayed just fine.
 
I guess I got lucky, I painted some 10yr old dimensions base a couple of months ago and had no problems. I had to stir a long time and strain it but it sprayed fine. I've painted years old acrylic enamel and clear before with no problems, with new hardener of course but It was on collision repairs and the owner didn't give a crap. I wouldn't dare use it on something I cared about because it would screw up just because. Now take in to consideration nobody ever told me not to use old paint so I thought I was doing something normal, I guess you can always learn something new!
 
I do know that Dupont's ChromaBase formulas that have 801 (H.S. White) will go bad. The white will turn into hard chunks and will not be able to be intermixed after a couple months. I have thrown out alot of left over mixes with that issue. Once that happens the color is gone and becomes useless. It kinda sucks when you tinted it and set it aside incase the car comes back for more repairs and you have to start over again tinting.
 
IF you have a tig welder, you will probably have a bottle of argon, just shoot a couple seconds of argon into the can before putting the lid on. You can use 75/25 mig gas if that is all you have. Theory says it will be fine. Both gases have worked well for me for many years.
 
I've used basecoats, singlestage, and clears that were 20+ years old and never had any problems. Humidity is usually low here though. If the container is exchanging air or leaking at all it won't last long regardless though.
 
Bob Hollinshead;n73153 said:
I've used basecoats, singlestage, and clears that were 20+ years old and never had any problems. Humidity is usually low here though. If the container is exchanging air or leaking at all it won't last long regardless though.
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Very true, that is the good thing with a heavier than air inert gas, it lays on top of the product and will not readily exchange for air if the lid isn't sealing completely
 
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