Tetrion Easy-On Interior Filler is a high quality and high performance interior filler which makes plaster filling and jointing jobs as simple as possible. The special ‘dual-action’ formulation features air-drying and chemical setting characteristics allowing for deep fill applications whilst maintaining a super-smooth finish. Tetrion Easy-On cures effectively and provides a fine, easily sanded surface without the need for a separate ‘finishing’ filler.