Best gravity fed spray gun?
- Thread starter andrew
- Start date
Devilbiss 
www.commervanspares.co.uk
https://www.facebook.com/commervanspares
www.commervanspares.co.uk
https://www.facebook.com/commervanspares
^^^^^^ Agreed all my guns are Devilbiss One of which is 18 years old and still puts clear on daily
www.facebook.com/MSAAutobodies
www.msaautobodies.co.uk
www.facebook.com/MSAAutobodies
www.msaautobodies.co.uk
HVLP is High Volume Low Pressure, the alternative is a conventional high pressure gun. I've never used a HVLP gun as I understand they are more difficult to set up to get a decent finish, and use a lot more air so a bigger compressor is required. I may be wrong but hopefully someone who has used one will correct me if I am.
Founder of the Non-Facebook Club
Founder of the Non-Facebook Club
Hang on guys what are you wanting to do?
Couple of things to clear up for you.
Firstly HVLP is a type of gun not a style of gun you can get both gravity feed and suction fed guns in HVLP most cheap guns are gravity feed as it makes it easier to manufacture and meet the HVLP when you have gravity on your side.
HVLP is a term banded about a lot by companies trying to sell guns. High Volome Low Pressure spray guns do just that put on more paint at a lower pressure and as such can be used with a smaller compresor with a lower cfm. You must check that your compressor has a free air delivery that is greater than the cfm required by the gun.
Sadly its not just a case of which is the best gun but more importantly which gun best suits your needs and equipment. If your give me more details about what you want to do with it I would be happy to help you find the best set up for you.
Oh been painting car for a living for 20 years now so seen most of the stuff out there.
Hth Mark
www.facebook.com/MSAAutobodies
www.msaautobodies.co.uk
Couple of things to clear up for you.
Firstly HVLP is a type of gun not a style of gun you can get both gravity feed and suction fed guns in HVLP most cheap guns are gravity feed as it makes it easier to manufacture and meet the HVLP when you have gravity on your side.
HVLP is a term banded about a lot by companies trying to sell guns. High Volome Low Pressure spray guns do just that put on more paint at a lower pressure and as such can be used with a smaller compresor with a lower cfm. You must check that your compressor has a free air delivery that is greater than the cfm required by the gun.
Sadly its not just a case of which is the best gun but more importantly which gun best suits your needs and equipment. If your give me more details about what you want to do with it I would be happy to help you find the best set up for you.
Oh been painting car for a living for 20 years now so seen most of the stuff out there.
Hth Mark
www.facebook.com/MSAAutobodies
www.msaautobodies.co.uk
Thanks for that Mark, I always thought HVLP referred to the air flow - lower pressure requiring a high flow, and consequently a bigger compressor to drive it, so I've learned something So is it any more difficult to set up a HVLP gun, or is it just a different technique?
Founder of the Non-Facebook Club
So is it any more difficult to set up a HVLP gun, or is it just a different technique?
Founder of the Non-Facebook Club
andrew
0
Hi sweedspeed, thanks for the information. I am looking to spray me commer van. I have been looking at a hvlp sealey s701g gun with a regulator and a water trap. I am going to be using rustoleum paint. I have no experience but am looking forward to it(if I ever get it done). So far I've finished the preparation and am looking yo start spraying soon.
Member of the non-Facebook club.
Member of the non-Facebook club.
Hi Andrew.
First thing is what size is your compressor? As I said you will need to match the gun to the compressors output you have. Cubic Feet Minute is the amount if air it will put out, Free Air Delivery which is the amount of air it will put out on an empty tank and its tank size.
So as an example your sealey gun will require between 6-11cfm depending on the size of the fluid tip and setup. Your set up is determined by the type of paint your using. Any paint that is suitable for spraying will have a technical data sheet that will give you the set up needed , 1.3 1.4 1.6 1.8 etc, it should also give you the mixing ratio or reduction ratio, 2:1 +10% etc.
So once yo know your paint requirments you can pick your gun then check your compressor. A little bit of leeway with it is fine as you can "work a round" things. BUT if you are too far out you will have problems If you tank is too small you will have a pressure drop which means you will run out of air and have to stop and wait for the tank to fill this will have a knock on effect with your recoat time and or leave dry edges etc. Please make sure you do your reasearch regards the paint and whats in it, if its a high VOC or contains isocyanate you MUST have an air fed mask.
One last thing have you thought about just spraying the primer coats your self and sending it to a bodyshop for the top coat? I understand that the point is that you've done it etc but it would make it eaiser for you and unless you plan to paint a lot of cars/vans then its a big outlay for one job..
And remember rule 3 preperation is everything.
www.facebook.com/MSAAutobodies
www.msaautobodies.co.uk
First thing is what size is your compressor? As I said you will need to match the gun to the compressors output you have. Cubic Feet Minute is the amount if air it will put out, Free Air Delivery which is the amount of air it will put out on an empty tank and its tank size.
So as an example your sealey gun will require between 6-11cfm depending on the size of the fluid tip and setup. Your set up is determined by the type of paint your using. Any paint that is suitable for spraying will have a technical data sheet that will give you the set up needed , 1.3 1.4 1.6 1.8 etc, it should also give you the mixing ratio or reduction ratio, 2:1 +10% etc.
So once yo know your paint requirments you can pick your gun then check your compressor. A little bit of leeway with it is fine as you can "work a round" things. BUT if you are too far out you will have problems If you tank is too small you will have a pressure drop which means you will run out of air and have to stop and wait for the tank to fill this will have a knock on effect with your recoat time and or leave dry edges etc. Please make sure you do your reasearch regards the paint and whats in it, if its a high VOC or contains isocyanate you MUST have an air fed mask.
One last thing have you thought about just spraying the primer coats your self and sending it to a bodyshop for the top coat? I understand that the point is that you've done it etc but it would make it eaiser for you and unless you plan to paint a lot of cars/vans then its a big outlay for one job..
And remember rule 3 preperation is everything.
www.facebook.com/MSAAutobodies
www.msaautobodies.co.uk
andrew
0
Thanks Mark, I'm going to have a look at the compressor today. The paint I'm using is a primer and topcoat in one, i did get some prices to spray but that was for all the prep etc. I might get another quote to see how much it is to spray without any prep. The trouble I've had is there are so many spray guns to choose from , and the sealey guns comes with good reviews. I am going to check all of the requirements and take it from there.
Member of the non-Facebook club.
Member of the non-Facebook club.