F4 SIL

F4 SIL is a water-based, mineral impregnating base, for exterior and interior wall surfaces, based on modified potassium silicate with special compatible binders and in conformity to DIN 18363 section 2.4.6. The product is used as insulation for the application of mineral finishes. In fact, thanks to the high-penetration power and grip strength, it facilitates and promotes adherence and regulates absorption, without compromising any mineral feature of the surface. F4 SIL contains water soluble potassium silicate which, after the application onto the surface, reacts with carbon dioxide present in the air and with the calcium salts present in the plaster, thus giving birth to calcium silicate, a mineral salt that has high consolidation and grip characteristics and which gives the layer of applied product the aspect and properties of typical building materials.

F4 SIL is an excellent mineral fixative, suitable for any type of wall surface plastered with mortar based on hydraulic lime-binder, premixed and traditional, finished or not, as a base for brush-applied finishings or filling decorations and thick intonachino coatings of the silicate class. Moreover, it can also be used for diluting the first coat of paint of the same class.