Sika tubes going off?

[Geoff_Jubb]

Hi guys,
Once a tube of Sikaflex 291 has been opened and a little used, is there anything you can do to stop the whole tube going off, or is it a one shot deal?

[chewy]

The usual trying to seal the end may prolong the life of whats left, I usually put a screw in and then wrap the end with clingfilm.

[Chris]

Originally Posted by Geoff_Jubb

Hi guys,
Once a tube of Sikaflex 291 has been opened and a little used, is there anything you can do to stop the whole tube going off, or is it a one shot deal?

If you can seal the end and stop any air getting in and keep it dark and cool it can last for months, I still usually end up digging out large chunks of solid Sika whatever I do however its normally only the bit in the nozel that gums up.

I tend to buy the smaller tubes as it is not great for staying liquid.

[Hightower]

All of the above, plus put in the fridge

[willk]

Originally Posted by Hightower

All of the above, plus put in the fridge

I'll see your fridge and raise you a freezer!

Dunno about sikka, but I used to freeze opened Aquaseal/sure for 12+ months. It warmed up and worked like it was a new tube. Residual life was a few weeks otherwise. Might be worth a try on a sample?

[Geoff_Jubb]

Hi,
Great suggestions, many thanks!
I tried keeping the tube airtight last time, but it still went off. Now I have a few more things to try.
Cheers,
Geoff

[Stinger]

Originally Posted by Geoff_Jubb

Hi,
Great suggestions, many thanks!
I tried keeping the tube airtight last time, but it still went off. Now I have a few more things to try.
Cheers,
Geoff

Seal sika with itself. Squeeze a bit, and form a small ball on the tip. When u are reusing, pull out hardened sika. If it`s hardened on the inside, unscrew the plastic tip, throw it away, put a new one and go. This way I use sika for months.

[Channel Ribs]

Unscrew the nozzle and put some plastic on the end, then re-screw the nozzle.

The stuff in the nozzle will go off, but is easily pulled out and the stuff behind the plastic will be fine.

[astra]

what about putting the tube of stuff in water,I think that would stop it,Just i ideal?