Resene Gap Filler is specifically formulated to fill gaps, cracks, and imperfections in a wide range of surfaces, including walls, ceilings, and woodwork., It adheres well to a variety of surfaces, including plasterboard, wood, concrete, and masonry, ensuring a secure bond., Resene Gap Filler is commonly used for filling gaps around windows, doors, skirting boards, architraves, and other trim elements.