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#11
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Spraying Imron-Other painting issues
just another 2 Cents - my formulator chemist says the cyanide in the LPU part B (iso-cyanides - spelling??) is well bond up and not that dangerous -- I don't know... Note that these LPU coatings, especially if you thin and spray - often don't match the clear air VOC regulations in many parts of the state. If you use them on a boat, and not on a car or plane, you are very likely breaking the law. No 'harm' intended - I am just becoming knowledgeable in the confusing rats nest of VOC regulations that vary from state to state and often county by county (such as in California). It is not science or technology that control coatings these days, but lawyers. paul oman progressive epoxy polymers inc Jim-- I do apologize if I seemed ungrateful for your counsel. I thought you were just some wise ass. I should have checked things out. I have just read a lot of your posts and realize that you have made many, many valuable contributions to this group. You are absolutely right about the dangers of anything containing isocyanates. I do not have a supplied-air system but I will probably be using an HVLP gun which will reduce the overspray and atomozation. I will be working outside and will be shooting less than one pint. I will use a tight-fitting mask and the correct cartridge--the same one I use with muriatic acid which can really burn your lungs up. If I were younger I would probably not do it without supplied air but at my age I don't have to worry too much about long-term affects. Thanks and sorry if I misunderstood your intent. Joe On Wed, 18 Apr 2007 19:20:40 -0400, "Jim Conlin" wrote: The linear polyurethane (LPU) paints such as Imron, Awlgrip and Perfection contain cyanide compounds which are VERY TOXIC. These compounds cause brain, liver and lung damage. When the paints are rolled or brushed, the nasty stuff stays on the boat and only solvents get into the air. An organic vapor respirator can deal with that. When the PAINTS are sprayed, an aerosol of paint droplets, containing the nasty cyanide compounds, is in the air. The only breathing apparatus which effectively protects the painter are the 'supplied air' respirators. These start at about $1K. An ordinary respirator won't do it.. DO NOT SPRAY LPU PAINTS WITHOUT ONE. |
#12
posted to rec.boats.building
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Spraying Imron-Other painting issues
Cyanide is broken down in the body through a series of sulfur dependent
pathways. The toxicity is based upon the lack of sufficient sulfur being available under normal conditions resulting in the accumulation of free cyanide in the body. The treatment is to ingest a prescription product called mucomyst. It smells like rotten eggs can't imagine drinking it. So don't bother with a proper mask, pour yourself a big glass of sulfur. Spray a little then sip a little and you will be fine. John "Paul Oman" wrote in message ink.net... just another 2 Cents - my formulator chemist says the cyanide in the LPU part B (iso-cyanides - spelling??) is well bond up and not that angerous -- I don't know... Note that these LPU coatings, especially if you thin and spray - often don't match the clear air VOC regulations in many parts of the state. If you use them on a boat, and not on a car or plane, you are very likely breaking the law. No 'harm' intended - I am just becoming knowledgeable in the confusing rats nest of VOC regulations that vary from state to state and often county by county (such as in California). It is not science or technology that control coatings these days, but lawyers. paul oman progressive epoxy polymers inc Jim-- I do apologize if I seemed ungrateful for your counsel. I thought you were just some wise ass. I should have checked things out. I have just read a lot of your posts and realize that you have made many, many valuable contributions to this group. You are absolutely right about the dangers of anything containing isocyanates. I do not have a supplied-air system but I will probably be using an HVLP gun which will reduce the overspray and atomozation. I will be working outside and will be shooting less than one pint. I will use a tight-fitting mask and the correct cartridge--the same one I use with muriatic acid which can really burn your lungs up. If I were younger I would probably not do it without supplied air but at my age I don't have to worry too much about long-term affects. Thanks and sorry if I misunderstood your intent. Joe On Wed, 18 Apr 2007 19:20:40 -0400, "Jim Conlin" wrote: The linear polyurethane (LPU) paints such as Imron, Awlgrip and Perfection contain cyanide compounds which are VERY TOXIC. These compounds cause brain, liver and lung damage. When the paints are rolled or brushed, the nasty stuff stays on the boat and only solvents get into the air. An organic vapor respirator can deal with that. When the PAINTS are sprayed, an aerosol of paint droplets, containing the nasty cyanide compounds, is in the air. The only breathing apparatus which effectively protects the painter are the 'supplied air' respirators. These start at about $1K. An ordinary respirator won't do it.. DO NOT SPRAY LPU PAINTS WITHOUT ONE. |
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