Let's talk Chamber size, and put all egos aside.
Chamber size always seems to be a great topic to get people talking. Everyone is always interested in what chamber everyone else is using, and where they use them.
Unlike somethings guys tend to compare, bigger isn't always better, and yes it's how you use it that determines how good the finished job is.
When spraying foam it is all about control, and speed. If you have great gun control, you can still mess up a job because you don't move fast enough. If you are moving so slow, you will never get into your rhythm, no rhythm means no consistency. Moving too fast wears a person out and can create long term issues with your arms, elbows and wrists.
That's why there are so many different chamber sizes out there.
I'm guessing half of the people out there right now are proud saying they use 02 or 52 chambers for everything. If you can control them in a stud cavity amazing, but I bet you are moving pretty fast, and worn out by the end of the day. Or your jobs are not always as smooth as you would like them, and your helper hates you because of all of the over spray. Where on the other hand some of you use smaller chambers because you love the smooth glass look and are proud you never have to scrap a stud.
Putting aside all egos, you are both right. But there is a happy medium where you can use speed, control, get great yields, not wear yourself out, AND not have to spend hours cleaning up after a job.
All chambers have a time and place. Throughout this I'll talk about the AR29, AW39, AR42, AR47, AR52 and the whopping AR60 chambers.
Let's start with the AR42 chamber. This is a great chamber it's the most popular for a reason. This chamber has an output of 9lbs a min, and will give you a spray pattern of 11 inches across (when spraying 18 inches from the substrate). 9lbs a min is a good output for the average person. It allows them to spray 16 inch stud cavities with control, at a speed that won’t blow out your arms. Once you get familiar with it, It will allow you to lay 2 inches pretty smooth within stud cavities.
The AW39 chamber has the same output as the AR42 but it has a wider spray pattern. The 39 chamber sprays a pattern 16 inches wide.
Some people really like this tip for spraying stud cavities. You can’t just go straight down the cavity, but with a little flick of the wrist you can fill the cavities. Some people find it less labour intensive than using an AR42 chamber.
For some people they find the output of the 42 or 39 chambers a little too much. Most of the time it’s because they like to be picky with their work (100% nothing wrong with that at all!) and want it to look smoother. That’s where the AR29 chamber comes in. The 29 chamber has an output of 7lbs a min (not all that much less) and a 7 inch pattern. The smaller output and smaller pattern will allow much more control over your spraying and also allow you to feel more relaxed and not rushed while trying to lay the foam in nice and consistent. You will sacrifice a little bit of time using this chamber but the extra control you get will reduce wasted material as well as clean up time after! This chamber is also popular for spraying coatings.
Now the second most popular chamber is the AR52 chambers. These chambers have some nice output which can make them a little hard to control. Their output is 14 lbs a min and has a pattern of 12 inches wide. The spray pattern size can make it nice to fill in between studs, but the output can make it very difficult to maintain a 2 inch pass.
These chambers are very popular with 1/2 lb Foam since there isn’t really a pass thickness for that system. But when it comes to 2 lb foams, they tend to be a bit much for stud cavities. Where they work well when using 2 lb foams is on open walls, roof decks and floors. It allows you to do nice wide passes and build up your two inch lifts quite nicely. When used for stud cavities the speed you need to move to lay the foam down nicely often makes it hard to control where the foam ends up, causing waves or even mountains in your foam, not to mention all over the studs. To help achieve the extra output, but still have some control the AR47 does a great job! It has an output of around 11.5 lbs a minute with a pattern width of 11 inches. This is a nice fit for the guys that need a little extra over the AR42, or the AW39 chambers. If provides a little extra speed, but with a little more control.
9 lbs a minute to 14 is a big jump when trying to get comfortable with a chamber.
That just leaves the beast of a chamber left, the AR60. This monster of a chamber has an output of 19 lbs a minute and a width of 14 inches. This guys should only be used with a big machine as well as in large wide open surfaces, such as roofing, or stabilizing large pipelines. Most of the time it’s used with 3lb or pour foam systems.
The last thing I want to point out for everyone is how long it would actually take to spray an entire set of material (1050lbs worth), if you held the trigger down until the set was empty, no triggering or anything!
AR29 would take about 150 minutes
AW39 would take about 116.66 minutes
AR42 would take about 116.66 minutes
AR47 would take about 91 minutes
AR52 would take about 75 minutes
AR60 would take about 55 minutes
Laid out like that you can easily see why people would tend to jump from a 42 chamber to a 52 chamber, as well as why the 47 was recently created!
Yes the 52 chamber will be able to put a set of material on the wall faster, but if it creates more than 26 minutes of extra clean up time is it really worth it to give up the control of the 42?
That extra clean up time is not only time, but it’s scraping product which is being purchased to be thrown out, not to be sold!
This is why people tend to say they get better yields with smaller chambers.
Chamber size always seems to be a great topic to get people talking. Everyone is always interested in what chamber everyone else is using, and where they use them.
Unlike somethings guys tend to compare, bigger isn't always better, and yes it's how you use it that determines how good the finished job is.
When spraying foam it is all about control, and speed. If you have great gun control, you can still mess up a job because you don't move fast enough. If you are moving so slow, you will never get into your rhythm, no rhythm means no consistency. Moving too fast wears a person out and can create long term issues with your arms, elbows and wrists.
That's why there are so many different chamber sizes out there.
I'm guessing half of the people out there right now are proud saying they use 02 or 52 chambers for everything. If you can control them in a stud cavity amazing, but I bet you are moving pretty fast, and worn out by the end of the day. Or your jobs are not always as smooth as you would like them, and your helper hates you because of all of the over spray. Where on the other hand some of you use smaller chambers because you love the smooth glass look and are proud you never have to scrap a stud.
Putting aside all egos, you are both right. But there is a happy medium where you can use speed, control, get great yields, not wear yourself out, AND not have to spend hours cleaning up after a job.
All chambers have a time and place. Throughout this I'll talk about the AR29, AW39, AR42, AR47, AR52 and the whopping AR60 chambers.
Let's start with the AR42 chamber. This is a great chamber it's the most popular for a reason. This chamber has an output of 9lbs a min, and will give you a spray pattern of 11 inches across (when spraying 18 inches from the substrate). 9lbs a min is a good output for the average person. It allows them to spray 16 inch stud cavities with control, at a speed that won’t blow out your arms. Once you get familiar with it, It will allow you to lay 2 inches pretty smooth within stud cavities.
The AW39 chamber has the same output as the AR42 but it has a wider spray pattern. The 39 chamber sprays a pattern 16 inches wide.
Some people really like this tip for spraying stud cavities. You can’t just go straight down the cavity, but with a little flick of the wrist you can fill the cavities. Some people find it less labour intensive than using an AR42 chamber.
For some people they find the output of the 42 or 39 chambers a little too much. Most of the time it’s because they like to be picky with their work (100% nothing wrong with that at all!) and want it to look smoother. That’s where the AR29 chamber comes in. The 29 chamber has an output of 7lbs a min (not all that much less) and a 7 inch pattern. The smaller output and smaller pattern will allow much more control over your spraying and also allow you to feel more relaxed and not rushed while trying to lay the foam in nice and consistent. You will sacrifice a little bit of time using this chamber but the extra control you get will reduce wasted material as well as clean up time after! This chamber is also popular for spraying coatings.
Now the second most popular chamber is the AR52 chambers. These chambers have some nice output which can make them a little hard to control. Their output is 14 lbs a min and has a pattern of 12 inches wide. The spray pattern size can make it nice to fill in between studs, but the output can make it very difficult to maintain a 2 inch pass.
These chambers are very popular with 1/2 lb Foam since there isn’t really a pass thickness for that system. But when it comes to 2 lb foams, they tend to be a bit much for stud cavities. Where they work well when using 2 lb foams is on open walls, roof decks and floors. It allows you to do nice wide passes and build up your two inch lifts quite nicely. When used for stud cavities the speed you need to move to lay the foam down nicely often makes it hard to control where the foam ends up, causing waves or even mountains in your foam, not to mention all over the studs. To help achieve the extra output, but still have some control the AR47 does a great job! It has an output of around 11.5 lbs a minute with a pattern width of 11 inches. This is a nice fit for the guys that need a little extra over the AR42, or the AW39 chambers. If provides a little extra speed, but with a little more control.
9 lbs a minute to 14 is a big jump when trying to get comfortable with a chamber.
That just leaves the beast of a chamber left, the AR60. This monster of a chamber has an output of 19 lbs a minute and a width of 14 inches. This guys should only be used with a big machine as well as in large wide open surfaces, such as roofing, or stabilizing large pipelines. Most of the time it’s used with 3lb or pour foam systems.
The last thing I want to point out for everyone is how long it would actually take to spray an entire set of material (1050lbs worth), if you held the trigger down until the set was empty, no triggering or anything!
AR29 would take about 150 minutes
AW39 would take about 116.66 minutes
AR42 would take about 116.66 minutes
AR47 would take about 91 minutes
AR52 would take about 75 minutes
AR60 would take about 55 minutes
Laid out like that you can easily see why people would tend to jump from a 42 chamber to a 52 chamber, as well as why the 47 was recently created!
Yes the 52 chamber will be able to put a set of material on the wall faster, but if it creates more than 26 minutes of extra clean up time is it really worth it to give up the control of the 42?
That extra clean up time is not only time, but it’s scraping product which is being purchased to be thrown out, not to be sold!
This is why people tend to say they get better yields with smaller chambers.
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