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Clairel  
#1 Posted : 16 February 2012 11:42:45(UTC)
Rank: Super forum user
Clairel

This may be too specialised for this forum but it's worth a shot. I'm after information about safety risks from powder coating. I understand in basic terms the main risks from fire and explosion, electricity and the health risks. What I'm after is more specific guidance. The HSE priced publication mainly talks about the health risks so I'm after more detailed guidance on the safety risks related to fire and explosion and electrical risks. Specifically detailed control measures, ratings of equipment, dusts levels etc. The BCF just refer to the HSE guidance doc. I have found a doc on the internet from 2005 and so I want to cross check it against what is current. Anyone an expert or could point me in the right direction of a doc? Thanks
Jane Blunt  
#2 Posted : 16 February 2012 11:57:54(UTC)
Rank: Super forum user
Jane Blunt

I'm not an expert, but I did find a really useful loking book: Dust explosion prevention and protection By John Barton I also found this, which looked quite useful http://explosiontesting....AR_technical_article.pdf Quantifying dust explosion risk is more complex than flammable vapours/gases, as it is also dependent on particle size.
JJ Prendergast  
#3 Posted : 16 February 2012 12:00:57(UTC)
Rank: Super forum user
JJ Prendergast

I'm not aware of any specific powder coating specific guidance How about these 2 British Standards if the dust is potentially combustible. BSEN 13463-1 Non electrical equipment in potentially explosive atmospheres BSEN 60079-10-2:2009 Classification of areas - Combustible dusts Happy to help if you would like further assistance, send a PM.
stevie40  
#4 Posted : 16 February 2012 12:03:32(UTC)
Rank: Super forum user
stevie40

Also take a look at whether they are still using TGIC powders - basically they should be avoided. I seem to recall they were commonplace in the rail industry and playground equipment because they had better anti-fading properties. Non-TGIC powders have been improved though so TGIC should be a thing of the past. I've certainly not seen any in the last couple of years though I see some firms still sell them. http://www.hse.gov.uk/pubns/eis15.pdf
walker  
#5 Posted : 16 February 2012 12:55:54(UTC)
Rank: Super forum user
walker

Many years ago I managed a big powder coating operation I'm not going to provide advice cos I don't any longer feel competent However I have on my shelf (still in it's shrink wrap) HSG203 which evidently includes a disc It's yours if you want it e mail me - you know who I am ;-)
Clairel  
#6 Posted : 16 February 2012 17:57:04(UTC)
Rank: Super forum user
Clairel

Thanks all. walker- thanks anyway but I have hsg203, but as I said it's about the health risks only. stevie - see above I have info on health risks thanks Jane and JJ - after something a bit more specific really and also need specific info on the static problem Thanks anyway guys, there's either nothing out there or I need to be on a more specialised forum.
phow  
#7 Posted : 16 February 2012 20:04:42(UTC)
Rank: Forum user
phow

Claire. Powder coatings are a dust hazard under Coshh , so follow that guidance. The powders are pigments held (clumped) together in a resin, then ground back down to a powder. This will be flammable to some extent. Therefore Dsear (safety of workers) and Atex (EPSRegs - safety of equipment) may be applicable. The two references to Zoning above (EN60079-10-2) and selection of electrical and mechanical equipment within the zoned area (volume) also EN 60079 series are relevent Application is usually by use of spray gun with static charge to get the powder to stick to the opject. The supplier of the powder coating (Who is likely to be a member of the BCF) should be able to give you all the necessary guidance as to what to consider exactly. There is also BSEN 12981:2005 "Coating plants - Spraybooths for the aplication of organic coating material - Safrty requirements." [Not sure if this is the current ed] best wishes Peter
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