"george [dicegeorge]" wrote in message
...
I have cleaned and painted the guttering,
and got new bolts to join them with,
but what gooey stuff shall I use in the joints?

If it was something that set hard then it could make it very difficult
to disassemble them for painting in ten years time.

Google for 'lead or gutter seal'.

e.g. http://www.geocel.co.uk/product.aspx?id=85&pr=dctm