Dingy repair?

[solar]

Hi,
My cheap ebay dingy is losing its shape after a day or two from full inflation.
can't find from where the air is getting lost?
Is there any wonder stuff like in car tires that can be put inside it via a valve that will repair leakages from the inside?
Many thanks.

 

[earlybird]

Sealflex from Polymarine, I've not tried it myself.

 

[jac]

You donl;t say how much and where but a couple of thoughts.

Dinghies do get a little flaccid due to heating and cooling. If properly inflated and then warmed in the sun ( fat chance at present) then the air expands. As they then cool at night they can lose the rigidity you thought they had. However - I donlt believe that this will progressively let the dinghy deflate further each day - it will just oscillate around a certain pressure.

Secondly - before injecting any gunk into your tubes - try and find out where it is leaking. In some models - the valves are prone to leaking and are an easy fix - simply unscrew and screw in replacement. Far easier than trying to get stuff in.

Remember that tyres are subject to centrifugal force which will help to distribute any gunk around all the parts. Dinghies are not.

 

[Sandy]

Soap and water, cheap as chips and works every time followed by some glue to repair the usually tiny hole.

 

[solar]

Thank you all.
Time will tell.