Before we get into the actual discussion lets have the typical reminder of the forum rules.
Note the red and green text in particular.
Those of you that play speedball don't need to worry about smoke on the field (although that could be fun), but since most of us are in the woods and many peolpe wear ghillie suits fire is a MAJOR issue.
Types of smoke grenades:
Burning vs Bursting - Both types generate heat. Busrting however is far more dangerous for paintball purposes. Bursting smoke grenades contain white phosphorous, which catches fire in the air, burning with yellow flame and producing a lot of phosphorous pentoxide (which manifests as white smoke). The bursting grenade also serves as an incendiary device. As you can see the fire hazard can be considered extreme, and the personal danger due to mishandleing or bad aim is even more so. Should you end up with bursting grenade handle with caution and dispose of it safely.
Hot vs cold - The term "cold burn" is relative, the smoke grenade may be cooler than the average firework during normal use but this does not in any way imply that the device does not generate heat. All smoke grenades generate heat of some sort and this heat can and will start a fire if not watched closely.
The majority of smoke grenades work the same, pull a pin to start the ignitor, the ignitor burns the chemicals that creates the smoke. Depending on the chemical compostion of the grenade some may generate more flame than others. Before using ANY smoke grenade test one in a safe environment. Should you test it at home, contact the police, fire department and neighbors to inform them of your intentions and prevent any misunderstandings.
Once you've seen how your particular grenade works you should be able to decide if it's woodsball safe, in other words NO external flame. Check the area for burn damage. Lots of scoarch damage could indicate possible fire hazzard.
The next thing to do is to confrim with your field/event organizer that your particular brand of smoke grenade is allowed in the game. If they aren't, don't bother arguing. Buy whatever they supply or use nothing. Use only in designated areas and witha ref's permission.
If you play outlaw then use your head. A coffee can filled with sand will help insulate a cold smoke grenade from the ground. Designate "safe use" areas on the field and clear all low hanging branches and dried leaves. Make sure there is a way to pur out the fire should one occur, a small fire extinguisher should be inplace before the game and removed after wards.
Below are some links to buy smoke grenades. Most companies WILL NOT ship across borders.
http://www.kaboomfir...insmokgren.html Toronto Canada , doesn't specify if it's hot or cold.
http://www.keepshooting.com/militarysurplu...res_surplus.htm Waldorf, MD Exposed flame.
http://www.evhill.co...ite_Grenade.htm Rohnert Park CA Doesn't specify if it's hot or cold.
http://www.force-ten.com/police1.html Anacortes, WA These ones require the fuse to be lit witha lighter.
I have not purchased from any of these locations and selected them because they display a decent cross setion of smoke grenades.
USE CAUTION and PLAY SAFE