Equipped to Survive: Blister Packs

Posted by: JCWohlschlag

Equipped to Survive: Blister Packs - 12/26/07 02:24 AM

Okay, so what exactly is the best tool for these dang blister packs? mad Any better suggestions other than using a sharp pocket knife, remembering to slice away from you, and making darn sure there is nothing that you do not want destroyed anything around you in case the knife slips? (And additionally trying not to destroy the item inside the blister pack!)

Chainsaws? Tin snips? Any ideas?

I think I heard/read somewhere that more injuries are caused on Christmas day by people opening blister packs than anything else.
Posted by: Ors

Re: Equipped to Survive: Blister Packs - 12/26/07 02:43 AM

I'd have to vote for the sharp knife thing...The blade on a Charge or Wave seems to do nicely.

Depending on what it is, and how it's packaged, sometimes you can cut just enough, far away enough to pry the rest open with your fingers.

Barring that, I try to use just barely more than the tip, so the blade stays away from the goods. Of course, a sharp knife helps that whole process work.

Another thing you might try is moving the blister pack instead of the knife...a trick I learned the summer I failed at selling Cutco. I wasn't cutting blister packs of course, but when using the Chef Knife, we were encouraged to move the food we were dicing toward the knife instead of moving the knife toward the food...same thing works for blister packs...if you keep the knife in one place, then if there is a slip, it's the pack...you might smack yourself in the chest, but there are no lacerations grin
Posted by: jamesraykenney

Re: Equipped to Survive: Blister Packs - 12/26/07 02:51 AM

Originally Posted By: JCWohlschlag
Okay, so what exactly is the best tool for these dang blister packs? mad Any better suggestions other than using a sharp pocket knife, remembering to slice away from you, and making darn sure there is nothing that you do not want destroyed anything around you in case the knife slips? (And additionally trying not to destroy the item inside the blister pack!)

Chainsaws? Tin snips? Any ideas?

I think I heard/read somewhere that more injuries are caused on Christmas day by people opening blister packs than anything else.


If I have them handy, then, yes, tin snips are the way to go... That little serrations that they have grips the plastic well and will even catch the raised edges and cut right through them.
They are the only REALLY safe way to open the things!
Posted by: morph

Re: Equipped to Survive: Blister Packs - 12/26/07 04:07 AM

never used one but there's this thing made specifically to open them:

http://www.myopenx.com/
Posted by: utspoolup

Re: Equipped to Survive: Blister Packs - 12/26/07 06:06 AM

I use my kitchen scissors, kershaw shuns are the ones I have. Never had a issue with any package, or even cutting thru a chicken for that matter.
Posted by: KG2V

Re: Equipped to Survive: Blister Packs - 12/26/07 07:20 AM

small amounts of C4?
Posted by: JIM

Re: Equipped to Survive: Blister Packs - 12/26/07 11:14 AM

EMT-shears work for me.
Posted by: RayW

Re: Equipped to Survive: Blister Packs - 12/26/07 11:40 AM

+1 on the tin snips, i use the long nose wiss snips. Haven't had a package yet they wouldn't open.

http://tinyurl.com/2nv85o

Posted by: benjammin

Re: Equipped to Survive: Blister Packs - 12/26/07 12:18 PM

Cutco scissors if the form factor isn't too radical. They will cut a penny in half, but are more articulated than tin snips.

If it is a real odd shape, I've been known to get out the portable dremel tool and a cutting wheel, or even my solder gun. Gotta be a bit more careful about them things, though.
Posted by: Matt26

Re: Equipped to Survive: Blister Packs - 12/26/07 12:29 PM

As luck would have it I found in my stocking yesterday one of these http://www.thefirestore.com/store/product.cfm/pid_359_benchmade_5_rescue_hook/ Let's just say that no package was safe yesterday! laugh
Posted by: Stu

Re: Equipped to Survive: Blister Packs - 12/26/07 12:41 PM

EMT shears! grin
Posted by: KenK

Re: Equipped to Survive: Blister Packs - 12/26/07 01:45 PM

+1 for the kitchen shears. We have the Fiskars ones with the seratted edges. Those serations help "hold" onto the plastic while cutting.
Posted by: OldBaldGuy

Re: Equipped to Survive: Blister Packs - 12/26/07 02:07 PM

I usually use my Wave also, but the serated edge, not the straight one. Doesn't always cut in a straight line, but it does get the thing opened. A side note, if you are not careful, you can get one heck of a "paper cut" from the cut edge of the plastic...
Posted by: GarlyDog

Re: Equipped to Survive: Blister Packs - 12/26/07 02:45 PM

We use kitchen shears here too.
Posted by: Kurt_W

Re: Equipped to Survive: Blister Packs - 12/26/07 03:45 PM

I agree EMT shears work great. When I don't have those I find the serrated blade on my leatherman wave does the best job. Although I must admit if I had access to it, there are many times I would, like the other poster said, gladly use c4 to get the dang things open!

-Kurt
Posted by: Stretch

Re: Equipped to Survive: Blister Packs - 12/26/07 05:17 PM

Why are they called "blister" packs? Is it because you get blisters trying to open them?
Posted by: Anonymous

Re: Equipped to Survive: Blister Packs - 12/26/07 07:39 PM

I use my pocket knife because I know it's sharp. If the knife is sharp and the person holding it knows anything about knives it's fairly safe...it's when the knife is dull and/or wielded by a careless person that accidents happen.

When I don't have my knife handy, kitchen shears work fine too.

My trick is to cut the 'blister' part and not where the two halves are joined as the blister has the thinnest plastic and the edges are thick and heat fused together. This also allows me to cut through only one later of plastic instead of having to cut both around the edge.
Posted by: MoBOB

Re: Equipped to Survive: Blister Packs - 12/26/07 11:03 PM

I would prefer to just torch 'em. Instead I use heavy duty scissors. I cannot use the serrated blade on my Leatherman Crunch due to the fact that it is made for a right-handed person. I'm a lefty. That is why I stay away from those serrated blades. They are essentially like carbon paper oof old: only good on one side.
Posted by: Stretch

Re: Equipped to Survive: Blister Packs - 12/27/07 02:08 AM

Does anyone know why they're called "blister packs"?
Posted by: UTAlumnus

Re: Equipped to Survive: Blister Packs - 12/27/07 02:26 AM

The super shears you can get at the hardware for cutting heavy plastic & light sheet metal. Either them or paramedic's scissors.
Posted by: OldBaldGuy

Re: Equipped to Survive: Blister Packs - 12/27/07 02:33 AM

Maybe 'cuz you can get a blister opening them???
Posted by: Stretch

Re: Equipped to Survive: Blister Packs - 12/27/07 02:36 AM

Well, that's what I thought too, maybe. Seems too simple though...
Posted by: frediver

Re: Equipped to Survive: Blister Packs - 12/27/07 03:09 AM

I vote for EMT shears.
Mangle a few blister packs then return the item with the pack destroyed. I do not care anymore if I ruin the pack when I need to return something.
Posted by: PaulKersey

Re: Equipped to Survive: Blister Packs - 12/27/07 04:01 AM

I use my electrician's scissors to open clamshell packs.
Posted by: ironraven

Re: Equipped to Survive: Blister Packs - 12/27/07 04:28 AM

I destroyed the hinge of a pair of inexpensive trauma shears working on blister packs. Other than a sharp knife, maybe a band saw?
Posted by: climberslacker

Re: Equipped to Survive: Blister Packs - 12/27/07 04:55 AM

IF they have the hole thing at the top, that they hang them from in teh stores, i usually am able to actually put one finger inside and rip it. Works pretty well, unless it doesn't have a hole, then i use my kitchen shears.
Posted by: frostbite

Re: Equipped to Survive: Blister Packs - 12/27/07 08:14 AM

I think they call them blister packs because if you see them without the contents in them they look could like blisters, the soft plastic on cardboard especially so. Just guessing.
Posted by: JIM

Re: Equipped to Survive: Blister Packs - 12/27/07 11:57 AM

Originally Posted By: frostbite
I think they call them blister packs because if you see them without the contents in them they look could like blisters, the soft plastic on cardboard especially so. Just guessing.


Works for me..
Posted by: benjammin

Re: Equipped to Survive: Blister Packs - 12/27/07 12:09 PM

I reckon they are called blister packs because of the way they are put together. The plastic is heated until it is malleable, then is pressure formed over the item it is to contain along with the carboard backing vis-a-vis some sort of die forming machine, then the edge is welded together to seal it up. Since the plastic is a smooth sheet before it is heated and applied, it is much like forming a blister over the contents.
Posted by: Stretch

Re: Equipped to Survive: Blister Packs - 12/27/07 05:35 PM

Very good. Very good. Thank you both. The mystery is thereby solved.
Posted by: porkchop

Re: Equipped to Survive: Blister Packs - 12/28/07 01:35 AM

Tuesday we used EMT shears, kitchen shears/scissors, and wire cutters.

If any of these had failed, my father in law was ready with the chainsaw.
Posted by: ironraven

Re: Equipped to Survive: Blister Packs - 12/28/07 01:58 AM

Jace, you must have skinny fingers.
Posted by: OldBaldGuy

Re: Equipped to Survive: Blister Packs - 12/28/07 02:37 AM

And what tough skinny fingers he must have. Did I mention those "paper" cuts from the plastic???
Posted by: jamesraykenney

Re: Equipped to Survive: Blister Packs - 12/28/07 05:44 AM

Originally Posted By: OldBaldGuy
And what tough skinny fingers he must have. Did I mention those "paper" cuts from the plastic???


I have used that method before and it does work.
If you try it, you will find that you are actually less likely to get cut that way than you are by the plastic cut by a knife.
Posted by: climberslacker

Re: Equipped to Survive: Blister Packs - 12/31/07 09:14 PM

Well, for 1) I'm 13 and, 2) i rock climb, that should answer the "How I do it"