Donic vario clean bad in tropical countries?

Yesterday i used donic glue to glue my rubbers. first i applied glue in a zig zag pattern. when i used the sponge piece to spread them evenly it got sticky and glue started make rolls and things that made the surface uneven. Because of this after i paste the sheet i could observe unevenness on the rubber too. I tried several times and results were same. although in last week i was able to do a smooth glue job with andro turbo fix glue.

is this a issue with climate in my country or any other things? really appreciate your opinions on this one. :cool:
 
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