my 250 gm chinese cheap Haifu dolphin 250ml see thro bottle with a white domed cap adhesive .. is not working at all well on boosted rubber. not tried it on flat rubbers yet .. the english is not good on the instructions . it says apply 3 to 5 layers on the rubber and let dry what puzzles me is that after drying and sticking together then it says THE EFFECT LASTS FOR ONE OR TWO HRS ? .is this speed glue ??.only started playing in plastic ball era don't know about speed glue .. IT SAYS also made from natural rubber organic solvent,,, it smells of much more than natural rubber too toxic ...my rubbers came off easily while playing after 2 days use ..on two glue jobs during matches .. l am now trying the tweak of curling up the the rubber the other way tightly like a scroll rubber out before glueing ... l need to boost cos the batch of xiom omega asia 7 , v hard sponge 52.5 hardness l bought is much too hard on my koto ZLC XVT blade after boosting the rubber felt good fast with more spin .... can l use contra normal solvent glue on these boosted rubbers ..need to reglue for matches v soon !! this is the glue l used lots before it was always fine ... l have ordered andro yellow bottle german water based glue but its too late for upcoming matches ..thanks any ideas about haifu problem please ...