Undercoat Isoflam 1l

The Isoflam undercoat is a ready to use undercoat substance. Used as a base increasing the adhesive properties of the calcium-silicate boards. Does not contain solvents. Levels out the absorbency of the boards and subsequent layers as well as prevents from efflorescence. Only to be used on the outside surfaces of the fireplace housing. Inside surfaces should be treated with the Isoflam Impregnant.

Usage: Before application the surface must be clean, dust and fat-free. All inequalities and wholes in the surface must be filled with filling mortar and then spackled. Apply with a roller brush or spray. Drying time in summer - around 3 hours. Low temperature and high humidity extend the drying time.

Ingredients: Potassium water glass, silicon, water.