insutama Posted June 23, 2015 Posted June 23, 2015 I have looked all over the place for info regarding using 32 micron spherical aluminum for glitter in stars and I'm getting mixed answers can someone please tell me if this size atomized aluminum will work thanks
coogan1997 Posted June 23, 2015 Posted June 23, 2015 32 micron should be right around 325 mesh http://www.skylighter.com/fireworks/making-fireworks-projects/screen-mesh-metal-particle-size.asp
OblivionFall Posted June 23, 2015 Posted June 23, 2015 Yeah look for mesh instead of micron for aluminum meant for stars. I'm getting blue aluminum soon and I'm going to see if it works well for stars and if it does I can ship some to you. It is non-hazmat so it's legal to have.
insutama Posted June 23, 2015 Author Posted June 23, 2015 Ya I wish I knew the mesh size but the only info I have is micron
insutama Posted June 23, 2015 Author Posted June 23, 2015 (edited) Thanks Greg but that's the first thing I did well before I made this post I have seen different sites such as skyligher advertise aluminum and it says 32 micron and also 325- mesh for the same aluminum http://www.skylighter.com/mall/product-details.asp?id=1however the mesh to micron conversion chart says 37 micron is 400 mesh so which one is it. Edited June 23, 2015 by insutama
Mumbles Posted June 23, 2015 Posted June 23, 2015 Micron is a measure of actual particle size, or at least average particle size. Mesh is a measure of the screen it goes though. Mesh is measured in holes per linear inch. Mesh is thus less exact, and will be dependent upon the thickness of the wires. For instance a 3 mesh screen has openings that are approximately 1/4" is size. For large coarse materials, mesh tends to be more applicable. No one cares if the stuff is 0.3" wide or 0.28" wide. For fine materials, it tends to be a more accurate way to describe the material, since slight differences in wire thickness start to make a large difference. Out of curiosity, what source said 32 micron aluminum wouldn't work for glitters? By the way OblivionFall, I would look closer into these shipping regulations if I were you. The MSDS can say whatever it wants, but fine atomized aluminum is an ORM-D material, and thus illegal to ship without proper packaging, and there are extra issues for international transport since it cannot go via air. http://pe.usps.com/text/pub52/welcome.htm
insutama Posted June 23, 2015 Author Posted June 23, 2015 Thanks for clearing that up mumbles and that's why I was asking I wanted to know if 32 micron atomized aluminum would work for glitter. I have read that ideally you want -325 mesh atomized aluminum for glitters and the source I have only has 32 micron so before I spend money I want to make sure it will work good.
OblivionFall Posted June 23, 2015 Posted June 23, 2015 Micron is a measure of actual particle size, or at least average particle size. Mesh is a measure of the screen it goes though. Mesh is measured in holes per linear inch. Mesh is thus less exact, and will be dependent upon the thickness of the wires. For instance a 3 mesh screen has openings that are approximately 1/4" is size. For large coarse materials, mesh tends to be more applicable. No one cares if the stuff is 0.3" wide or 0.28" wide. For fine materials, it tends to be a more accurate way to describe the material, since slight differences in wire thickness start to make a large difference. Out of curiosity, what source said 32 micron aluminum wouldn't work for glitters? By the way OblivionFall, I would look closer into these shipping regulations if I were you. The MSDS can say whatever it wants, but fine atomized aluminum is an ORM-D material, and thus illegal to ship without proper packaging, and there are extra issues for international transport since it cannot go via air. http://pe.usps.com/text/pub52/welcome.htm Ok well I'm not sure where I can figure out if it's legal to ship or not. I contacted the guy that makes it at BlueAluminum.com and he says it's non-hazardous.
Mumbles Posted June 23, 2015 Posted June 23, 2015 ORM-D is other regulated material for domestic transport only. It is a hazardous material that based on quantity, packaging, containment, etc is rendered to have a limited hazard for shipment. Aerosol containers, solvents, nail polish, ammunition, etc are all covered under this classification. It's okay for domestic transport as long as the rules and regulations are found, but illegal for international shipments. For Canada and Mexico it doesn't make much sense. It's easier and safer to get these things to those countries than to Hawaii or Alaska. Go figure. To figure out if it's legal to ship, you'll need to do some more research. I'd start by reading the relevant sections of that USPS document I linked to. You could also try talking to your local post master. The MSDS sheet is usually the place to start. I've seen plenty of MSDS sheets for products that don't contain proper information in the transportation section though. Maybe they're correct in that not all aluminums are regulated, but they could contain incorrect information. I doubt a sloppily put together MSDS would save you from the stiff punishments for breaking shipping regulations.
OblivionFall Posted June 23, 2015 Posted June 23, 2015 ORM-D is other regulated material for domestic transport only. It is a hazardous material that based on quantity, packaging, containment, etc is rendered to have a limited hazard for shipment. Aerosol containers, solvents, nail polish, ammunition, etc are all covered under this classification. It's okay for domestic transport as long as the rules and regulations are found, but illegal for international shipments. For Canada and Mexico it doesn't make much sense. It's easier and safer to get these things to those countries than to Hawaii or Alaska. Go figure. To figure out if it's legal to ship, you'll need to do some more research. I'd start by reading the relevant sections of that USPS document I linked to. You could also try talking to your local post master. The MSDS sheet is usually the place to start. I've seen plenty of MSDS sheets for products that don't contain proper information in the transportation section though. Maybe they're correct in that not all aluminums are regulated, but they could contain incorrect information. I doubt a sloppily put together MSDS would save you from the stiff punishments for breaking shipping regulations.Ok I will take a look at the MSDS sheet. Insutama lives three hours from me in Canada so that's why I was thinking of shipping it to him. Of course international shipping is a whole other deal.
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