3M 4200

H

haliman

New member
Hello,
I am on my second of tube of 4200 and everytime I try to use it it is already dried up at the open end and can't get any out of it. Same thing happened to me on the first tube and ended up cutting a damn hole in the body so I could use it. Ended up wasting over half the tube. Now it is happening again and this stuff is not that cheap. I have read on hear to try and put some plastic film over the opening before putting the cap on and have tried this but with no luck. Any suggestions or possibly another brand that you all use instead of the 3M stuff. Tired of wasting money on the 3M stuff.

Thanks
 
I believe storing it in the refrigerator crisper will prolong its life (not sure if the crisper is specifically necessary, but that's where a friend left a tube when he went off traveling for two years; came back and it was still usable).

Sunbeam
 
BrentB":346tkrfs said:
I keep open tubes with caps on in the freezer with the Admiral's authorization and specifed location :thup
Click to expand...
Me too (but w/o permission). The freezer works better than the fridge for this purpose.
 
You can buy small squeeze tubes, like silicon comes in. The large tubes are cheaper by the ounce, but not if you through most of it away.
I seldom use the large tubes.
Jerry
 
I have a project to undo :( :embarrased and need to remove a block, about 3x5" glued onto the inside of the transom. ( I mounted the Racor to it but now it needs to be moved.) I used 3M 4200 Fast Set. Anybody have a really good tricks to "unglue" it?

Harvey
SleepyC:moon
 
Get some thin piano wire. Get two strong dowels for handles, and drill holes through center middle. Secure piano wire so you have two grab handles about 12 inches apart. Heat the block to soften the 4200, then "saw" away at the back of the block. It should cut through the 4200.

I removed trim tabs mounted with 5200 this way.

Now, inside the transom, some contortions are in order. Some liquids are said to work, denatured alcohol, acetone, and Anti-Bond.

Have fun :shock:

Robbi
 
Robbi":1z61y5lh said:
Get some thin piano wire. Get two strong dowels for handles, and drill holes through center middle. Secure piano wire so you have two grab handles about 12 inches apart. Heat the block to soften the 4200, then "saw" away at the back of the block. It should cut through the 4200.
<Some deletions>
Have fun :shock:

Robbi
Click to expand...

I'll bet one could substitute a NiChrome wire for the piano wire, apply 120 volts AC to the wire in series, and use a Powerstat to regulate the voltage> amperage >wattage> heat and cut down through that plastic pronto, just like a lot of other plastics.

This is what I call the "electric/hot-wire/bandsaw routine. Would be worth a try, anyway!

Joe. :teeth :thup
 
Aluminum foil is a better barrier at the cap than a cling wrap. Plastic is far more porous than metal. I've had a tube of 4200 last three years using al foil without using the freezer but now I use the freezer too.

Jay
 
Sea Wolf":ykgk8f3q said:
Robbi":ykgk8f3q said:
Get some thin piano wire. Get two strong dowels for handles, and drill holes through center middle. Secure piano wire so you have two grab handles about 12 inches apart. Heat the block to soften the 4200, then "saw" away at the back of the block. It should cut through the 4200.
<Some deletions>
Have fun :shock:

Robbi
Click to expand...

I'll bet one could substitute a NiChrome wire for the piano wire, apply 120 volts AC to the wire in series, and use a Powerstat to regulate the voltage> amperage >wattage> heat and cut down through that plastic pronto, just like a lot of other plastics.

This is what I call the "electric/hot-wire/bandsaw routine. Would be worth a try, anyway!

Joe. :teeth :thup
Click to expand...

Just be careful you don't "light up your life". :cry

Charlie
 
We have been keeping the large caulking tubes of the 5200, 4200, 4000 in the freezer with aluminum foil and they seem to last for many months/years this way. Same for silicone etc. I am assigned my own door shelf on the freezer.
 
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