Loctite storage temperature

[Brad93]

I've got Loctite decades old and it's still good.

I think is the modern eco friendly stuff that goes off.

 

[Migmac]

I was going to ask a while ago if anyone had known of loctite going off in the bottle, I had a small bottle of 243 which was coming out as a paste, as I went to take a picture of it I squeezed all the paste out and it was coming out as a liquid again, I decided it must have just gone off in the nozzle or something.

View attachment 335350

Picture off the mess, you can see an opaque lump near the front of the puddle. That's just a crappy old bottle I found amongst a load of second hand tools so I wasn't too bothered, someone's cut the fine tip off the nozzle too so I'm almost trying to get rid of it, I didn't really think any more of it going off.


Today I went to use some 638 (in a 50ml bottle I bought new) and it's much thicker than it should be, so I checked my other bottle of 243 (Another new, 50ml bottle) and it's thickened too.

I've now googled it and seen "Storage below 8 degrees or above 28 degrees can adversely affect product properties". I've got it all in an uninsulated garage, I can quite safely say it's below 8 degrees out there.

I'm going to machine a couple of test pieces to check the bond strength, hopefully they still cure properly and I haven't completely wasted seventy quid worth of glue.

I’ve just asked a friend about this. He did a course on loctite and everything associated with it. Ideal storage is between 8 and 21 degrees C. As you say under 8 or over 28 degrees C and it can affect loctite products.

 

[T5 TDI]

Interesting. I have some Locktite 638 I used to bond a gearbox bearing which had turned on the shaft and I chucked the remainder in the toolbox. I'll have a look and see what it's like and what it says on the bottle. It's not that cold here but it must have been below freezing at some point in my garage since 2018. I think I paid about 9 quid for it so I will replace it if the job warrants it. The different Locktite numbers refer to different properties so maybe the storage for each one is different.