Hi and thanks for the replies, the paint was for the outside and I do not stand on the roof.
I did not really want it to look like an old Cortina with a vinyl roof with a rough texture but did want a mat black finish and just thought this stuff would be good.
Even better if it was smooth though.
As for the roof dripping well I don’t know as yet as it has not been fitted yet, My old roof did suffer something terrible with condensation but I removed the headliner and glued on camping mats which did help a lot.
I was planning to do the same with this roof before fitting it, I did see that a lot of people seam to have leaking roofs which is I presume through the joints so just though the rubberised paint would seal the outside and be hard wearing and also jive me the colour I require.
Ye may be right though and I may just use the normal paint but Challo said it might be good stuff for the inside but at about £75 a pop is an expensive way of doing it.
Another thing I was going to look at for insulating the inside was armaflex which has really good insulating properties and also very good sound deadening properties and can be got by the roll. It might also be useful for other areas on the Defender, it has also got a very good temp rating but I need to look into the cost of this stuff.
Regards
Frax