Selleys No More Gaps Interior Multipurpose is an easy to use gap filler ideal for filling gaps and cracks around skirting boards, cornices, and inside window & door frames. The water-based formulation has been designed to cope with building movement to ensure a long-lasting and crack resistant finish. Suitable for exterior applications. Not for constantly damp areas. For gaps between tongue and groove boards and weatherboards, use No More Gaps Exterior.