Sealer for sills

Tried searching the forums but to no avail !!
I’m in the process of putting my sill members back into my Plus 2 but I need some sealer to seal then with !!!
Can ordinary silicone sealer be used or do I need something automotive specific ???
Thanks in advance.

Lotus fan.

Do you mean the sill closing plates in the wheelarches? I used mastic sealant on mine…

I forgot about the closing plates !!! But I was thinking about the plates that hold the sill member itself.

Lotus fan