Paint gun and air-fed mask

[Jack155Q4]

Hi all,

Have been reading a few articles on this site and now have a question regarding the compressor with paint gun and an air-fed mask (despite being told by about 5 different people a 2K 3M mask is fine I couldn't feel happy risking it).

I am new to spraying cars, and have purchased some kit to do the job (re-spray an Alfa 155).

I have this gun: http://www.sealey.co.uk/PLPageBuild...tmicrogroup=&analysiscode=&requiredresults=16

and this air-fed mask: http://www.southernfiltersltd.com/shop.asp?pid=12

The gun says 6-11 CFM and the mask I am not too sure about without seeing the instructions which are in another place.

The compressor is a 2 year old 150L 14 CFM. Will I be able to run the mask and the gun off the one compressor?

What happens if the mask is underfed? How can I check it has the right amount of air?
I presume I will end up inhaling fumes as I understand they work by pushing air away from myself so fumes can't get in?

If for example the mask is a requirement of 8 CFM, leaving only 6 for the gun, will this cause me problems. I can imagine the compressor will be running flat out but as it will be my first time spraying I won't be going for long spray runs without releasing the trigger. Might I get away with the minimum spec?

Many thanks for your help,
Jack

 

[Dave H2]

Jack

The trouble is the compressor's 14CFM is probably the generous 100% efficency figure. The real figure is the FAD number (free air delivery) which will be about 11cfm if you're lucky, so no, you wont be able to run the mask and gun at the same time from one compressor.

 

[Jack155Q4]

Thanks Dave, not what i was hoping to hear though

Is there a way to increase CFM easily? Is it down to the mechanics or the storage volume, i.e could I add a tank?

EDIT - have searched and NO was the answer - need a bigger motor!

 

[group5]

This is what I have. It is excellent.

http://youtu.be/39xBMjrmKM4

I bought it on eBay

http://cgi.ebay.com/Supplied-fresh-...ultDomain_0&hash=item45edd5e5be#ht_3727wt_907

 

[Dave H2]

It's down to the mechanics
Cheaper to run the mask off an Aldi special compressor than buy more storage.

Best to just try it, if you find you can't spray without using loads of thinner get a cheap 2hp off the Bay to run the mask.

 

[Jack155Q4]

OK, will do - but how do you know when the mask has enough air? I don't want to risk under-powering it.

 

[Dave H2]

mask is non adjustable (at least mine was) you could feel the air wafting past your cheeks through the foam sides.
If you are spraying and you smell paint in the mask, hold your breath and clear off sharpish. Assuming you placed the compressor up wind and it's not sucking in fumes the mask must be short of air.
i know someone who used 2k on a model gilder who held his breath whilst spraying - wouldn't recommended it, cars are too big and you'll be a funny blue colour before you finish it.

 

[Jack155Q4]

LOL....thanks for your help!

 

[eil]

OK, will do - but how do you know when the mask has enough air? I don't want to risk under-powering it.

Your mask has a low flow warning device on it, or it says so in the link. on mine it has a whistle if its underfed.

 

[Jack155Q4]

Looks like this mask does not have the warning device. I bought it in Sept 10 so the product may have changed.