Underseal removal

[chrisgtx]

Hi
I have a mazda trackday car,i want to remove the underseal from under the arches to sort any rust then give it a nice coat of suitable paint,i plan on doing all the arches then the underneath bit by bit.
It rarely sees the road so i dont have worry about salt and dirt too much,and i dont need a concourse finish as that just makes me scared to drive it and ruin it.
Any ideas on any good paint strippers and durable non tacky paints?

[chrisgtx]

I have got one of them. I used it to remove the sound deadening. Ball ache of a job tho.
Would somthing like nitromors work,as in paint it on go for a pint while the magic works type of thing?