Mipa 4 + 1 Acrylfiller (4 Litre) Plus Activator HS5 (1 Litre)  MIPA 4 + 1 Acrylfiller with activator creates the perfect base for overpainting with a topcoat. Qualities include high build, fast drying, with excellent sanding ability and has high solid content. Best results are obtained when using MIPA H5  activator (supplied). Supplied in 4L Tin with 1L Activator at a Bargain Price of £59.99