How do I Fill Gaps in Mitres and Between Walls in Skirting Boards? General decorating topics, questions and answers. find help, tips and advice on completing your decorating projects

[George Hill]

I've just fitted a white primed MDF skirting board.
The walls are incredibly uneven.
As a result the skirting has gaps where the mitres don't quite meet and there are up to 5mm gaps where the top of the boards don't quite meet the walls.

1. What would you recommend to fill the gaps so that they disappear once painted?
2. What paint would you recommend to paint the skirting?

[welsh brickie]

Use decorators caulk in comes in tubes and applied with a mastic gun