Epifanes Combi Filler is a traditional one-component knifing filler for leveling of small iregularities in one-component paint systems for wood or steel above the waterline.
Should be applied in very thin layers. (max. 1 mm)
Use to repair and fill small imperfections in a single-component paint system on wood and steel above the waterline. 
Sand after 24 hours at 18 ° C. and 1 mm thickness
Advice:
Use Between one-component primer coats or for the first coating.