Sort-of DIY question, very strong way to glue plastic to rubber?

[Marcos]

Here are some images to make sense of it:

http://imgur.com/a/LDPhq#SatUs

This is the rocker/roller from a balance board, the roller is made of some nice solid plastic and the tires are rubber. But one of the tires has loosened and now slips off during use. I've tried a basic wilko's rubber glue, and some more advanced motorcycle glue (the yellow stuff), but i think that lost one was for rubber on metal.

Any ideas how I can shrink the rubber back? Or what kind of adhesive would dry with enough flex that it wont crack and fail? I guess I need a flexible bond.

This is how its used:

[GoNz0]

Vulcanizing rubber cement, make sure the area is very clean, ie alcohol spray after sanding both parts.

leave it at least 24 hours.

[Marcos]

Dang, that sounds hardcore, but i'll see if i can find some. The kind of thing you can get at Wickes or Homebase?

[GoNz0]

try a bicycle inner tube repair kit from the corner shop

[Splash]

Would Araldite not fit the bill?

[GoNz0]

trouble is the glue needs to set flexible or it will break apart 1st use as it looks like it has done already.

[chrestomanci]

What sort of plastic is it?

If it is polyethylene or polypropylene, then very few glues will stick to it. If it is Nylon, PVC, Polystyrene or Acrylic then you have more options. In the unlikely case that it is teflon or silicone, then nothing will stick.

The reason is a property of materials called Surface Energy in short liquids will only wet a solid if their surface energy is lower than the solid. If it is higher then it will just bead off like water on an oily surface. The plastics I mentioned have a very low surface energy, and very few liquid glues are lower so they won't stick.

Don't use a bike repair kit. It is not actually glue, but a rubber vulcanizing compound that causes rubber molecules to crosslink to each other. It will have no effect on non rubber, so you can't use it to stick rubber to something that is not rubber.

I would say your best bet would be silicone bath sealant. Both because is is flexible even when dry, and because it has a lower surface energy than anything except teflon so should stick to everything else.

[Marcos]

What sort of plastic is it?

If it is polyethylene or polypropylene, then very few glues will stick to it. If it is Nylon, PVC, Polystyrene or Acrylic then you have more options. In the unlikely case that it is teflon or silicone, then nothing will stick.

The reason is a property of materials called Surface Energy in short liquids will only wet a solid if their surface energy is lower than the solid. If it is higher then it will just bead off like water on an oily surface. The plastics I mentioned have a very low surface energy, and very few liquid glues are lower so they won't stick.

Don't use a bike repair kit. It is not actually glue, but a rubber vulcanizing compound that causes rubber molecules to crosslink to each other. It will have no effect on non rubber, so you can't use it to stick rubber to something that is not rubber.

I would say your best bet would be silicone bath sealant. Both because is is flexible even when dry, and because it has a lower surface energy than anything except teflon so should stick to everything else.

Excellent , i'll try this soon

[Tumble]

or hairspray - as daft as it sounds, I've used it to great effect to stick handlebar grips on. They certainly take a lot of twisty punishment, so it does work. You get 2 benefits - lubrication while it's wet (easier to get the grips/tyre on) and when it sets you have a flexible solid bond between the bar and the grip. I found the VO5 stuff works best

[Marcos]

or hairspray - as daft as it sounds, I've used it to great effect to stick handlebar grips on. They certainly take a lot of twisty punishment, so it does work. You get 2 benefits - lubrication while it's wet (easier to get the grips/tyre on) and when it sets you have a flexible solid bond between the bar and the grip. I found the VO5 stuff works best

Because the tyre has been stretched, i dont think hairspray will hold, when weight is applied, i think it'll just pull apart

[peterb]

I was going to suggest Evo-stik, but there is no 'slip' (as it is a contact adhesive) so you couldnkt slip the tyre on. A PVA adhesive might be another possibility, but Chrestomanci's suggestion sounds better (backed with science!)