yellow door 1 1,821 Posted November 9, 2019 Report Share Posted November 9, 2019 I tried black silicone because thats the closest thing to "suitable" I had on me - I also tried super glue with very limited success. Does anyone have a suggestion thats water proof and gives a firm bond Quote Link to post Share on other sites
Rod 773 Posted November 9, 2019 Report Share Posted November 9, 2019 G'day I've glued acoustic foam to concrete with liquid nails which lasted 20 years until the foam broke down. The plastic straws on the other hand, hmmm, nothin much sticks to shiny smooth plastic. Liquid nails might be worth a go. I have made a few floats using polystyrene foam and wall plug spaghetti, glued with hot melt. That worked ok Cheers Rod yellow door 1 1 Quote Link to post Share on other sites
rjgu42 10 Posted November 9, 2019 Report Share Posted November 9, 2019 SikaflexSent from my iPhone using Tapatalk yellow door 1 1 Quote Link to post Share on other sites
SurfcaztR 707 Posted November 9, 2019 Report Share Posted November 9, 2019 Shoe goo yellow door 1 and Hunter69 2 Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 9, 2019 Author Report Share Posted November 9, 2019 7 hours ago, Rod said: G'day I've glued acoustic foam to concrete with liquid nails which lasted 20 years until the foam broke down. The plastic straws on the other hand, hmmm, nothin much sticks to shiny smooth plastic. Liquid nails might be worth a go. I have made a few floats using polystyrene foam and wall plug spaghetti, glued with hot melt. That worked ok Cheers Rod Thanks Rod - I've got both of those options at work - I'll give them a crack on monday - might rough up the plastic with 40 grit first Rod 1 Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 9, 2019 Author Report Share Posted November 9, 2019 6 hours ago, SurfcaztR said: Shoe goo 7 hours ago, rjgu42 said: Sikaflex Sent from my iPhone using Tapatalk Thanks guys - I've had a few guys recommend Gorilla glue aswell - so I've got plenty of options fall back on if the first few dont work Quote Link to post Share on other sites
Softy 2,991 Posted November 10, 2019 Report Share Posted November 10, 2019 If Sikaflex doesn't work nothing will. yellow door 1 1 Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 10, 2019 Author Report Share Posted November 10, 2019 Just to confirm - when you guys refer to sikaflex - is it the polyurethane adhesive you are referring to - and can it be used to stick wood to concrete? I've never used it before Quote Link to post Share on other sites
doobie 5,802 Posted November 10, 2019 Report Share Posted November 10, 2019 I've used this. $5 from BigW and waterproof. https://www.bigw.com.au/product/stuk-epoxy-glue-24ml/p/28881/ It holds the foam, wood and metal, to do this. yellow door 1 1 Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 10, 2019 Author Report Share Posted November 10, 2019 1 hour ago, doobie said: I've used this. $5 from BigW and waterproof. https://www.bigw.com.au/product/stuk-epoxy-glue-24ml/p/28881/ It holds the foam, wood and metal, to do this. Thanks Doobie - if what I try fails - I definitely wont be stuck for options I'll give the sticks a bit of a rough up aswell doobie 1 Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 11, 2019 Author Report Share Posted November 11, 2019 Hot glue did the trick - thanks for all the tips fellas doobie 1 Quote Link to post Share on other sites
peatop 224 Posted November 12, 2019 Report Share Posted November 12, 2019 I've been using rubber cement to stick everything down the stuff you apply to each side and let it dry before joining, like sikaflex it would stick your boat to the trailer if put on the guides but a lot cheaper Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 12, 2019 Author Report Share Posted November 12, 2019 5 hours ago, peatop said: I've been using rubber cement to stick everything down the stuff you apply to each side and let it dry before joining, like sikaflex it would stick your boat to the trailer if put on the guides but a lot cheaper Yeah I was just exhausting the list of glues I already owned before purchasing any new stuff - thankfully the hot glue does the job in this particular application Quote Link to post Share on other sites
peatop 224 Posted November 13, 2019 Report Share Posted November 13, 2019 Yeah hotmelt is something i don't have but i think it would be a handy thing to have Quote Link to post Share on other sites
yellow door 1 1,821 Posted November 13, 2019 Author Report Share Posted November 13, 2019 Yeah It has its uses I originally bought it to glue lots of little rocks to PVC pipe in a fish tank - but it didnt work well in that application - there could have been some driver error but the rocks didnt hold onto the slick pvc - I ended up using silicon instead. Its elasticity was much better suited to gluing fairly smooth rocks to pvc pipe But I get the feeling there is a variety of different hot glue sticks you can buy, with different formulas and hardness's - and that roughing up the surfaces, is quite important while gluing slick surfaces together Quote Link to post Share on other sites
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