filler strong, quick-drying and universally applicable 1K filler. Ideal for zinc, aluminum, steel substrates, sanded 2K old coatings, and factory primers. Also suitable for plastics commonly found in the automotive sector. (We recommend a test application). The 1K universal primer filler is also very well suited as an MDF primer in furniture painting. Can be overcoated with solvent-based and water-based 1K and 2K paints. After about 45 minutes, it can be sanded when wet and after about 90 minutes it can be dry sanded and overcoated. Primed parts can be stored outside for about 30 days without a top coat.