3M 3200 silicone curing

[Steve_N]

Picked up a couple of tubes of date-expired (05/14) silicone and it isn't curing as expected. 2 days later it seems almost as soft and tacky as when applied. No vinegar smell, if indeed there should be with 3200.

I'd presumed that it would still be ok as long as it wasn't hard in the tube. Any thoughts?

 

[VicS]

I'd presumed that it would still be ok as long as it wasn't hard in the tube. Any thoughts?

Only the same thoughts as yourself but the data sheet does say a shelf life of only 18 months and a minimum temperature for application of 5C


But also "Note: Alcohol will interfere with the curing process" ... not been drinking?