Where to get propel or alternative? - In New Zealand

[Guest]

Hi there.
I am scratch building a 'nuke' style sub here in the South Island of NZ.
I need to know where abouts I can get this "propel" gas or an alternative here. I have found a type of canned air for dusting off keyboards ect here but I dont know wether it is suitable.

[yellowdog]

It comes in many names,but

[color=#000000]It comes in many names,but what you are looking for has the chemical name of]

[subs1]

Here in CHCH NZ I

Here in CHCH NZ I looked into using airconditioning gas ( You used to be able to use Freon gas ) You can also use airbrush propellant, but not any combustable gas
Malcolm

[craigf]

As mentioned by somebody else

As mentioned by somebody else elsewhere, another name to also look for is MG Chemicals Super Duster *refills*. It's non-flammable, and is about the same price as air brush propellant, maybe even cheaper. Essentially the same as the Chemtronics stuff for a fair bit less cost...I use lots of MG Chemicals electronics stuff and it's all decent. FWIW, the Super Duster is at a higher pressure than propellant, so gives you a little more blowing bang for your tank volume.