Tuscan Battery Compartment Sealant

[swisstoni]

What’s the best stuff to use?

The stuff that was on there seemed perfect; provided a seal but didn’t put up a huge fight when pulling the cover open and peeled off clean from all surfaces.

[Andy665]

Sounds like Tigerseal of Sikaflex

[Malcster]

I used this around the edges:
https://www.ebay.co.uk/itm/401922923100