Sealing around cables as they pass through a wall

[MattChan]

Hi, what would be the best material to use to seal around these cables?

They disappear into the white conduit which runs to the external meter cabinet and there is an epic draught coming in around them so i would like to get them sealed up.

 

[SUNRAY]

Expanding foam?
Silicon?
Bluetac?
Plasticine?
Mistresses knickers

 

[FrodoOne]

Expanding foam?
Silicon?

Silicon would be difficult to use and adhere.
Silicone sealant might be preferable !

An "Acrylic Sealant" would be even easier to install
and
remove if necessary - later.

 

[trojanhawrs]

Chuck a bit of kitchen roll down and expanding foam the duct