GBB gas filling question

[dcav]

I'm considering getting a GBB (KSC Glock 19 to be specific) but I was wondering if I needed to get an adapter to fill gas.

If I get a HFC22 bottle for example, do I need to get an adapter to fit the can of gas in the mag? Thanks.

[[Avtomat]]

If you want to buy a can of green gas (HFC 22), then you dont need too, but its very expensive, and would break the slide, because this gun is meant to be used with HFC134(sp?). But if you really want to use HFC22 then use propane you save hell of alot of money, to use propane you would also need to buy a adaptor. PM MadMax or go to his site for more information Here, look for propane adaptor

The right gas for your gun is HFC134(sp?). And the only cheap alternative is duster gas, you would have to buy a adapter or make one.

and read the FAQ for more answers

Propane, jet gas, green gas, etc (HFC22) - Best used with metal slides
Duster(tetra..), HFC134(SP?) - Best for Japanese made guns

[Stealth]

Green gas is hfc22?? BUT WAIT?? Isn't green gas propane?? Therefore propane is hfc22??

Propane is not hfc22. Propane is c3h8. Therefore, green gas is not hfc22.

Other than that, above poster has the right idea...

[[Avtomat]]

well it was a long time since i read the formula thingy. But i remember greengas is HFC22, I thought that propane had the same chemical make up as greengas, but when you mention it i remember now that it doesn't, it only has the same pressure (not sure)

[dcav]

well, at some places, they call the hfc22 gas green gas too... so i'm not sure about that.

so if i was to buy hfc134a, then i won't need an adapter?

[[Avtomat]]

Yes you do, i said it in my post.
You either make one or buy one, their are a lot of ways to making one, search up duster here in the forums.

you wil get all or most of the infomation needed

[MadMax]

HFC22 is a misnomer. The refrigerant numbered 22 is properly referred to as HCFC22 (CFC!). It is banned for aerosol release in North America and Japan because of it's ozone depleting properties.

So far out of 6 brands of green gas I've found in Canada, none of them contained HCFC22.

-Jet
-Green Power
-Shooting Air
-Toy Jack (Top)
-HFC
-AMO

They are all similarly flammable to propane and exert the same pressure at equivalent temperature. Three of them have been confirmed by laboratory analysis to be primarily propane.

The only aerosol R22 I've ever come across was LetraJet branded airbrush propellant. I used to use it as a substitute for green gas (before I figured out the propane thing). It has since been discontinued by LetraSet (company which sold LetraJet).

[Grim Fandango]

so if i was to buy hfc134a, then i won't need an adapter?

That depends on whether you are buying the hfc134a that is specifically made for airsoft use or are you buying duster gas from a store. The stuff made for airsoft is imported and already has a nozzle to fill gas guns (since it's made for airsoft gas guns), it also has silicon oil premixed into it and usually costs around $20-30 a can from airsoft retailers. Duster gas, which you can find at your local costco or futureshop or london drugs or whatever, is the same thing except without the silicon oil and without a nozzle to fit gas guns. You'd need an adaptor for that and also need to take extra care with your GBB (oil it up with silicon oil every now and then). Those cans usually cost like $3-4 I believe.

[CDN_Stalker]

KSC G19 with plasitic slide will (should, might be lemons, might be winners) last a while on propane. Mine is still going strong a year later, shoots hard and no wear. Has been through a few thousand rounds so far. I also have a KSC G19 with a metal slide, and it's awesome sounding and feeling.

As far as duster goes, here's a trick. Look at the back of the can, usually found under the warning or first aid treatment, for TETRAFLOUROETHANE. That is the stuff you want. If you see DIFLOUROETHANE, put the can down and go to another store. Reason is, the TETRA (think the number 5) is higher pressure than the DI (think number 2) is the weaker stuff as far as duster goes. The tetra will make your gun shoot and cycle well, the di will lack any decent power & range.

Tetra = good
Di = not so good

[dcav]

Thanks a lot for all the answers. Really appreciate it.

[xhale]

comments and questions... didn't want to make a new thread.

I went and picked up some silicone shock lube from the local rc store. I got the lightest weight stuff they carried. I'm wondering what is the ideal weight? I purchased the 10 weight.

also, everyone seems to be changing their duster to di. I have been to: Future Shop, Walmart, Costco, Bestbuy, Radioshack, and two local computer stores. every single brand I saw was di on the back. I found two brands who supposedly are tetra (memorex, fellows) but both have switch to di.

my last hope is to get some from london drugs when they get some back in stock. they say the container strike is holding up their shipments right now.

anyone bought any recently that was tetra? where?

[TheYellowDart]

Maybe they're switching because too many stupid kids are getting high of the other stuff...

[Kid]

try going to staples, they have some nice big Staples brand cans of tetra

[xhale]

well it's confirmed, everywhere in my locality is taking tetra off the shelves. I've been to every retailer within a 20km radius.

I found a total of 2 tetra cans (old stuff in the back of the shelves) at office depot. the manager said that these two cans are discontinued and she had no idea why. every store I went into and asked about it said their products have been recalled to be replaced with di, including london drugs and staples.

[MadMax]

I believe industry is switching to difluoroethane because it is cheaper and has a lower global warming potential (GWP).

R134a (tetra) has a GWP of 1300 (1300x the IR capture of CO2) whereas R152 (di) has a GWP of 140.

http://www.eia.doe.gov/oiaf/1605/gg9...locarbons.html