Today I’m going to show you how to use a two-part spray foam insulation package. There’s a lot of different manufacturers of these packages so it just depends on what kind of package is available in your area.
Even though I’m going to show you how to use this particular brand, make sure you read all the safety instructions and the user manual in whatever package you get just to be sure, that way if there’s any differences from manufacturer to manufacturer you’ll know.
The Spray Kit
Okay so the one we’re discussing today is a what they call a ‘Spray Foam 200 Kit‘, so what they’re saying is that the yield on it will be about two hundred square feet worth of foam at one inch thick.
We’re going to be spraying close to two inches thick here so we’ll be hopefully getting around 100 square feet out of these two cans at two inches thick. Once I open up the box some of the first things you find is you’re going to find the instruction manual as well as the safety equipment that’s needed, with a lot of little tips and tricks so make sure you read that over well.
Most of these guys have 1-800 numbers and websites as well so if you have other questions you can get ahold of somebody to ask questions too.
What’s In The Box
You should find an assortment of some different spray nozzles, these guys send two different types. This particular nozzle here is just for spraying gaps and cracks and that sort of thing, it’s going to send out a stream so that would be that one here.
This one here is a fan tip, it’s got a bit of a v-notch cut in the end so this one’s
going to spray out about an eight inch or so fan width of pattern which is good for filling wall cavities like what we’re going to do here. So you’ll have a bit of a selection of the of the tips in there.
This particular kit comes with two two containers – two steel cylinders, this particular one already has the hoses and the gun already hooked to it that does have a bit of a carrying handle here as well some of the bigger kits they’re going to have tanks. The tanks are much larger so they comes boxed separately just because they’re too heavy to carry as one unit so in here, like I said this one the the gun and the hoses are already attached to the tanks some of them you will it will come with a wrench and you may have to attach your own hoses and gun.
Before You Start Spraying
A couple things to go over, I guess since I’ve got the gun out putting on the tips would be a good start. It’s worth mentioning that the gun has a bit of a safety trigger here, this one so the yellow button down here has to be compressed or pressed before you can actually squeeze the trigger.
The tanks are still turned off by the way so you don’t want to turn them on until you’re actually ready to spray. This gun has a safety on it to attach a nozzle, just get it orientated right (there’s usually some marks in the end of the gun that correspond to the way the nozzle looks) and just push it in. There is a little lever here, you should hear it click in like that and just look to make sure that the little the lever hooks down on the lock knob.
How It Works
What happens is the two components each come in their own hose and once they hit the nozzle there’s a kind of a spiral setup inside of the nozzle here that actually starts to mix the two foams. Because until the two products mixed together and they don’t actually have the chemical reaction which causes them to expand and cure, so if you stop for too long it starts to set up in here and it clogs and it’s not going to work properly.
That’s why they send you multiple ones so if you stop, pop your tip off put a new one on and where you go again. They also in this bag sent some petroleum jelly so what they’d like you to do is smear some of the jelly right inside of the gun here and that just helps to allow your your tips not to seal up rate at the end of the gun so you can just throw your tip way put anyone on and everything should be fine.
Preparing The Tanks
Your tanks need to be about twenty four degrees Celsius or near to it, which would be about 75 degrees Fahrenheit to get the most yield out of them and to make everything work properly so keep them somewhere stored warm. If spraying professionally, you can actually buy professional spray foam hose covers which insulate your hoses and ensure you’re spraying the insulation at an optimal temperature.
You can spray on to a cooler surface but you don’t want something that’s frosty and wet so like here, where we’re doing this in February it’s quite cold so the wall is cool but it’s actually still about two degrees Celsius so and there’s no frost present.
Once we’re ready to go we’re going to shake both tanks really well for between 30-40 seconds and then open both valves on the tanks completely, you’re going to see the product start to come down the line and once it fills up the lines.
Agitating the tanks will just get things mixed together properly, so once done open your valves and let it bleed into the lines. Apply your petroleum jelly get your tip is ready and and then you’re pretty much close to being ready to spray.
Join me next week for part 2 of this how to spray foam insulation guide.