Fix Šyl gel is a transparent, mineral-based primer in gel form, free from solvents, plasticisers and hazardous substances (certified by TÜV SÜD). With minimal sagging, it is the ideal solution for ceilings.

It can be used indoors and outdoors, prior to applying Galtane silicate paints, or indoors, prior to applying Eos II paint, lime paint, clay paint or Galtane casein paint.

Fix Šyl gel reduces and evens out the absorption levels of absorbent, porous substrates and plasterboard. It is designed for application on organic and inorganic substrates. Fix Šyl gel must not be applied to surfaces coated with potassium nitrate (saltpetre).

More infos available here