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17 March 2010, 22:20
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#1
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Member
Country: UK - England
Town: North East
Boat name: Sarah Louise
Make: Honwave T38IE
Length: 3m +
Engine: 15 Yamaha, 8 Mariner
Join Date: Jul 2008
Posts: 228
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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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17 March 2010, 22:28
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#2
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Member
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
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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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17 March 2010, 22:29
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#3
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Member
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
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Join Date: Dec 2006
Posts: 4,021
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Quote:
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?
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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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Chris Stevens
Born fiddler
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17 March 2010, 23:12
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#4
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Member
Country: UK - England
Town: Fareham
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Join Date: Sep 2003
Posts: 7,866
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All of the above, plus put in the fridge 
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Andy
Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
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18 March 2010, 17:16
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#5
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RIBnet admin team
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,910
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Quote:
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? 
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18 March 2010, 23:44
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#6
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Member
Country: UK - England
Town: North East
Boat name: Sarah Louise
Make: Honwave T38IE
Length: 3m +
Engine: 15 Yamaha, 8 Mariner
Join Date: Jul 2008
Posts: 228
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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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19 March 2010, 13:16
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#7
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Member
Country: Croatia
Town: Split
Make: Bat Italia
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Join Date: Mar 2010
Posts: 4
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Quote:
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
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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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19 March 2010, 14:29
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#8
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Member
Country: UK - Channel Islands
Town: Alderney
Length: no boat
Join Date: Sep 2006
Posts: 3,047
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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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27 March 2010, 21:09
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#9
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Member
Country: UK - England
Town: bristol
Boat name: astra
Make: zodiac 340s
Length: 3m +
Engine: 15hp mariner
MMSI: 235905847
Join Date: Mar 2009
Posts: 230
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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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