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I have a job coming up that is going to require marking alot of small metal parts (.600x.800) and they are very light weight. I have a jig designed that will allow me to put 500 in the machine at a time. While testing I used LMM14 out of an aerosol can but for production, I will go broke using aerosol cans. I ordered a 500g container of LMM14 and plan on thinning it down. I have read people are getting the best results by rolling it on but I have some concerns. It will be a large area, with gaps, and I don&#39;t want the roller to pick the parts out of the tray. My other though was to use an airbrush to apply it. Do you have any recomendations on which airbrush to purchase and if you have any LMM14 left over, how do you store it. Also, I tried LMM6000 and it won&#39;t work. These parts have a copper nickle coating and for some reason the LMM6000 just doesn&#39;t act right. Thanks for your help! Trey</p>