why not use an auto spray gun for home acrylic paints?
Posted: Mon Apr 04, 2011 4:52 pm
Hi there - dumb question for the day
I'm new to the site and did try the search in both this and the Body and Paint forum but couldn't find an answer - so please forgive me if I'm asking something that's already been answered.
Ok, here goes ...
I was lucky enough to inherit a Marquip 3 HP / 13 cfm air compressor from a mate moving to Aussie (from NZ) - I've spent some money on having it serviced and buying attachments for it.
At some stage I'll be using it to repaint a 1972 Landcruiser FJ40 that I'm renovating and also an AC Cobra replica that I'm building. At this stage I'm thinking that I'll probably go for the Eastwood Concours HVLP gun as it only requires 4cfm at 29 psi and is a pretty competitively priced unit.
But I got to thinking: why can't I use this to also repaint the inside of my house? The local paint-suppliers have all told me that I need to buy Wagner airless kit. But my experience to-date has been that with only 4.5 million inhabitants, our local suppliers generally dispense advice that is often based more on the biased advice of distributor sales-reps and not necessarily based on experience. And it's also convenient (for them) that they want to sell me a $1700 Wagner unit on top of the auto spray gun!
From what I've been able to find out on the internerd, it seems that nozzle size will be one issue: auto spray guns tend to use 1.2-2 mm nozzle sizes whereas acrylic house-paint seems to need about 4.0mm (0.17 inch) nozzle size. Is it possible to get a 4.0 mm nozzle for an auto spray gun? I saw on this forum that someone had tried drilling an 2.0 mm nozzle but not sure what the results were.
I've also been told that (by local suppliers) that auto spray-guns generally can't handle acrylic paint. Is that still the case with the new breed of auto spray guns that are designed for water-born paint?
Or should I simply consider using oil paint (house) - would that work any better?
Anybody got any thoughts / advice to offer?
Thanks in advance for your help ;o)
I'm new to the site and did try the search in both this and the Body and Paint forum but couldn't find an answer - so please forgive me if I'm asking something that's already been answered.
Ok, here goes ...
I was lucky enough to inherit a Marquip 3 HP / 13 cfm air compressor from a mate moving to Aussie (from NZ) - I've spent some money on having it serviced and buying attachments for it.
At some stage I'll be using it to repaint a 1972 Landcruiser FJ40 that I'm renovating and also an AC Cobra replica that I'm building. At this stage I'm thinking that I'll probably go for the Eastwood Concours HVLP gun as it only requires 4cfm at 29 psi and is a pretty competitively priced unit.
But I got to thinking: why can't I use this to also repaint the inside of my house? The local paint-suppliers have all told me that I need to buy Wagner airless kit. But my experience to-date has been that with only 4.5 million inhabitants, our local suppliers generally dispense advice that is often based more on the biased advice of distributor sales-reps and not necessarily based on experience. And it's also convenient (for them) that they want to sell me a $1700 Wagner unit on top of the auto spray gun!
From what I've been able to find out on the internerd, it seems that nozzle size will be one issue: auto spray guns tend to use 1.2-2 mm nozzle sizes whereas acrylic house-paint seems to need about 4.0mm (0.17 inch) nozzle size. Is it possible to get a 4.0 mm nozzle for an auto spray gun? I saw on this forum that someone had tried drilling an 2.0 mm nozzle but not sure what the results were.
I've also been told that (by local suppliers) that auto spray-guns generally can't handle acrylic paint. Is that still the case with the new breed of auto spray guns that are designed for water-born paint?
Or should I simply consider using oil paint (house) - would that work any better?
Anybody got any thoughts / advice to offer?
Thanks in advance for your help ;o)