Bonny Posted April 20, 2010 Posted April 20, 2010 I was taught not to store NC or anything that can be potently vol ital in glass. What I do and recommend, is use the plastic bottle that you get with drug store alcohol. It's cheap to purchase and works very well with NC. I just discard the alcohol use a funnel and fill half way with acetone and using a funnel again slowly add my smokeless powder then recap and shake, keep repeating until measured smokeless is all gone. You will find when you pour the NC it pours nicely. JMA If it works well for pouring I might give that a try. I've been storing NC in mason jars for 3 or 4 years now without any problems...just don't drop the jar!
Mumbles Posted April 20, 2010 Posted April 20, 2010 Bonny, have you noticed any yellowing of the product over the years? I used to store mine in a glass container too, and it has taken on a rather yellow hue.
Bonny Posted April 20, 2010 Posted April 20, 2010 Bonny, have you noticed any yellowing of the product over the years? I used to store mine in a glass container too, and it has taken on a rather yellow hue. Mine stayed nice and white for the maybe 2 years I had it. It was stored on a cool dark bottom shelf in my workroom.My current batch was made with yellow and orange ping pong balls... so if it has taken on any extra yellow I'd never know.
Swede Posted April 21, 2010 Posted April 21, 2010 Watco Clear Lacquer by Rustoleum Chemical Name CAS NumberWeight % LessThan ACGIH TLV-TWA ACGIH TLV-STEL OSHA PEL-TWA OSHA PEL CEILING n-Butyl Acetate 123-86 -4 20.0 150 ppm 200 ppm 150 ppm N.E. (cut) Nitrocellulose Resin Solution PROPRIETARY 5.0 N.E. N.E. N.E. N.E. 1,2,4-Trimethylbenzene 95-63-6 5.0 25 ppm N.E. N.E. N.E. Which ones are going to evaporate? I think a lot of those are designed to make the product brushable and have decent working time. The reason I went for it is that guitar makers love it because they are always seeking a true brushing NC lacquer. I'm sure it is pretty low-grade stuff, but for non-critical purposes, I think it works OK. Definitely better than ping-pong ball lacquer. Best of all is Firefox Hercules NC dissolved in acetone, MEK, or a mixture.
gordohigh Posted May 23, 2010 Posted May 23, 2010 I have my NCL stored in a mason jar and has been in there for months with no evaporation visible. If you really wanted a vacuum you could use the jar adaptor from a food saver kit like the one Sam's sells although Its not really necessary. I have been saving all my glass jars too, great for small acale synthesis of things that dissolve plastics and they are easier to clean up when you're done. These are not quite air tight once you break the initial seal but do close quite tightly for most things and would probably work just fine as long as you keep the threads clean. It's amazing what we pyro's keep now that we used to throw away, jars, beverage cartons, news paper, paper bags, just to name a few. For snap lid containers, the dollar store has the best deals I can find and I also save all the plastic containers from the deli and stuff like cottage cheese and chip dip. These dont seal very tight but if you use a ziplock inside it makes for a good storage devise.
dagabu Posted May 23, 2010 Posted May 23, 2010 In my humble opinion, glass has no place in pyro. Nalgene has 1000ml wide mouth containers that resist breakage and will NOT shatter if there is a pressurized burst. I have both the Firefox NC and some Mil Spec NC from a chemist and they beat the ping-pong ball and smokeless hands down, in fact, the ping-pong NC I have from last year works very well for a fire stop on falling leaves... How good can it be if it does that? NC from Firefox, $12.00, how can you beat that?
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