silly string fumes=combustion??

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
chisox21
Private
Private
Posts: 11
Joined: Sat Mar 08, 2008 11:13 am

Sat Apr 05, 2008 11:02 pm

Hey guys I just bought some cans of silly string from the dollar store for some reason i dont know why it just seemed appealing. On the can it has the usual caution extremely flammable store under 120 crap, and this intrigued me. It gave off some nasty fumes too. Im thinking the fumes may work as combustion, and can be used innocently by younger secretive spudders. Just wonderin if anyone ever tried it or if anyone had a clue what would happen.
DTReaper
Private
Private
Posts: 7
Joined: Thu Dec 28, 2006 8:49 pm

Sat Apr 05, 2008 11:12 pm

It's basically a cheap flamethorwer due to the silly string being in it.

-DTR
chisox21
Private
Private
Posts: 11
Joined: Sat Mar 08, 2008 11:13 am

Sat Apr 05, 2008 11:35 pm

so if i sprayed some silly string into my cannon would the spark light the fumes or would string have to physically be on the spark?
User avatar
bigbob12345
Staff Sergeant
Staff Sergeant
Posts: 1516
Joined: Sat Dec 01, 2007 9:13 am
Location: Mercer Island,Washington

Sat Apr 05, 2008 11:51 pm

It might
but why silly string, it would cover your chamber in crap and it would be more expensive than alternantive options
chisox21
Private
Private
Posts: 11
Joined: Sat Mar 08, 2008 11:13 am

Sun Apr 06, 2008 12:01 am

lol its at a buck a can
User avatar
bigbob12345
Staff Sergeant
Staff Sergeant
Posts: 1516
Joined: Sat Dec 01, 2007 9:13 am
Location: Mercer Island,Washington

Sun Apr 06, 2008 12:11 am

well propane is two bucks a can and provides a lot more powerful shots and more of them per one can.
User avatar
Lentamentalisk
Sergeant 3
Sergeant 3
Posts: 1202
Joined: Tue Aug 07, 2007 5:27 pm
Location: Berkeley C.A.

Sun Apr 06, 2008 1:25 am

bigbob12345 wrote:well propane is two bucks a can and provides a lot more powerful shots and more of them per one can.
Depends on the size of the "can". My can cost me $30 and that was empty. then I had to pay $20 to have them fill it. But now i get it at a buck a pound, which is only 1/2 the price if you buy it in the canisters
Do not look back, and grieve over the past, for it is gone;
Do not be troubled about the future, for it has not yet come;
Live life in the present, and make it so beautiful that it will be worth remembering.
User avatar
potatoflinger
Sergeant 2
Sergeant 2
Posts: 1136
Joined: Thu Nov 02, 2006 3:26 pm
Location: Maryland

Sun Apr 06, 2008 8:59 am

I don't think silly string is a good option, if you're spraying it into a cannon it's going to get silly string all over the inside of it, and most of the silly string canisters that I've had didn't have any flammable gases in them.
It's hard to soar with eagles when you're working with turkeys.
User avatar
DYI
First Sergeant 5
First Sergeant 5
Antigua & Barbuda
Posts: 2862
Joined: Sat Jul 07, 2007 8:18 pm
Location: Here and there

Sun Apr 06, 2008 9:01 am

Either way, an average sized combustion cannon can get over 8 000 shots on a single 14.1 ounce propane tank, which costs about $4 after taxes. So unless you can get 2 000 shots or more out of your Silly Strings can, it isn't worth it, and it will gum up your chamber even worse than hairspray.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
Post Reply