Must Puncture Can of Grease

Thread Starter

MrAl

Joined Jun 17, 2014
13,765
MrAl:

You know batter. You need to post a pic.

I'll give you an idea. Two long boards with a hinge between them. The basics of a "can crusher".

take a nail, an "o-ring" and a step collar so you have nail, board, step collar, o-ring.

Do whatever you have to to get the right length and to secure the can.

Now, put the can in a zip lock bag.

Puncture the can through the zip lock. The "O-ring" should secure the grease and seal against the collar. I;m assuming not a whole lot of pressure inside the can. More like "shaving cream" type of pressure.

All of that is likely available at my local hardware store.

You might only have a tiny hole to deal with.

The hi-tech way, that costs more than the grease: https://www.grainger.com/product/GRAINGER-APPROVED-Side-Can-Tap-10U329

Who knows what the diameters are of your can or the tap.

What brought me there was what an R-12 can tap looks like. You might have one lying around.
Hi,

That side tap thing looks pretty cool. Maybe make a sleeve and then drive a sharpened steel screw into the side throught the sleeve, which would gently puncture the can.
 

joeyd999

Joined Jun 6, 2011
6,435
Hi,

Oh yeah :)
How about a 50mm round? :)
Ummmm...I figured you'd want to find the grease afterward.

And, what ship or plane are you going to fire that 50mm round from? Functioning German WWII craft are hard to come by these days.

Or, maybe you meant artillery?
 

MisterBill2

Joined Jan 23, 2018
27,998
It may also be possible to repressurize the can, That sometimes works with spray paint cans, using a hand tire pump because of being easy to stop and not overdo the pressure. But you do need an extra top part to attach the air hose to.
 

mcgyvr

Joined Oct 15, 2009
5,394
The things some people do on this site and others to save a bit of money always amazes me..

Clamp in vice.. Hammer a finishing nail in it....wiggle nail to remove pressure.. The cut it open on the band saw..
 

MisterBill2

Joined Jan 23, 2018
27,998
The things some people do on this site and others to save a bit of money always amazes me..

Clamp in vice.. Hammer a finishing nail in it....wiggle nail to remove pressure.. The cut it open on the band saw..
I would suggest clamping it in a VISE, a mechanical device made for holding things, rather than in a vice, a moral shortcoming.
AND, for any means of puncturing the can, be sure to wear some eye protection, because eyes are rather fragile and quite important.
 

ian field

Joined Oct 27, 2012
6,536
Hello,

I must puncture a can of "spray" dielectric grease so that i can get the grease out..
I put "spray" in quotes because it was supposed to be a spray but it comes out more like toothpaste.

I've used it a few times, maybe 5 times, and already the propellant is gone and i am left with an almost full can of really good quality grease. If i can get the grease out, i can still use it effectively. Problem is, i dont really know if the propellant is gone or the valve is bad. If the valve is bad then a puncture would spew grease all over teh place.

So any ideas what he best way to do this might be?
I was thinking put it in a box, then puncture, but i dont have a box that size.
If the propellant is gone - the usual problem with puncturing aerosols is also gone.

Good chance of snapping the pin drill others have suggested - plenty of other things you can poke a hole with.

Steel cans usually have rolled edges like tinned beans, take the bottom off with a tin opener - slam it on the bench a couple of times to slop all the grease to the other end.
 

Thread Starter

MrAl

Joined Jun 17, 2014
13,765
The things some people do on this site and others to save a bit of money always amazes me..

Clamp in vice.. Hammer a finishing nail in it....wiggle nail to remove pressure.. The cut it open on the band saw..
Hi,

Well it's not so much about the money it's about the waste if i through it out. I cant see wasting a whole can of grease, and it's good quality grease at that, and the price for this thing was over 10 bucks USD too. $15.99 on Amazon. Used very little so far.

Here's what it looks like.

CRC_SprayGrease-1.jpg
 

Thread Starter

MrAl

Joined Jun 17, 2014
13,765
Hello again,

Little update...

I emailed the company that makes the CRC stuff and they are sending me a new can.
That seems to take care of this problem. Hopefully that can works better.
 
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