Seam sealer for roof gutter

[DaveFord]

What seam sealer do you guys use for roof gutters, Drip rails? And do i need to some how push it back into to side of the gutter (radius of the gutter)
Was thinking of Tigerseal???
Thanks

[Gray]

I used Tigerseal, worked a treat, I made some plastic scrapers to shape from filler applicators, you can then smooth off or remove excess with a white spirit soaked cloth.