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Old 17 March 2010, 17:20   #1
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Sika tubes going off?

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?
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Old 17 March 2010, 17:28   #2
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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.
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Old 17 March 2010, 17:29   #3
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Originally Posted by Geoff_Jubb View Post
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.
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Old 17 March 2010, 18:12   #4
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All of the above, plus put in the fridge
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Old 18 March 2010, 12:16   #5
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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?
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Old 18 March 2010, 18:44   #6
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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
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Old 19 March 2010, 08:16   #7
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Originally Posted by Geoff_Jubb View Post
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.
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Old 19 March 2010, 09:29   #8
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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.
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Old 27 March 2010, 16:09   #9
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what about putting the tube of stuff in water,I think that would stop it,Just i ideal?
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