Special hardener that offers absolute strength, waterproofing, adhesion and flexibility on sensitive surfaces, such as surfaces with Milk Paint, 3D pastes, etc.
Enhances abrasion resistance and prevents dust and wear on the surface.
Mix hardener with water in a ratio of 60 (hardener): 40 (water). Go over your surface with a brush and allow it to dry thoroughly. Then you can apply some additional varnish if you want to.
Clean your tools with water after use.