They wont stick to rough tile, super glue will make the rubber crack.
When I really want a suction cup to stick I put a little glycerin on
it. My GPS has been stick to my trucks window for two years now. When
you take it off it cleans up with a little Windex.
Or he lives someplace like I used to. Most of the time the truck is
in the driveway and the dogs will eat anyone who comes close.
The rest of the time it is in a lot where everyone around it knows
whose truck it is and if some stranger passes through and wants to try
it he'll end up with a load of rocksalt in his ass before he gets 10
feet. [or maybe that 100 pound hound sitting there acts as a bit of
Lots of places like that still exist.
On 12/2/2015 10:22 AM, email@example.com wrote:
Trick I heard about and have tried with some success is glycerine. Get
a small bottle at the drug store.
Clean both the surface (tile) and the suction cup well, allow to dry.
Apply the smallest amount of glycerine you can to the rim of the suction
cup and press firmly into place. The glycerine won't hurt anything but
since it won't evaporate over time, prolongs the air tight seal.
IIRC, you can also use glycerine to seal cutting boards and wood handles
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