Patent ID: 8403024

Claim:
A mold release agent for preparing a layer on a permanent mold, comprising: deionized water; sodium hydroxide and/or potassium hydroxide and/or aluminum chloride; a binder of zirconium fluoride, an amount of the binder being less than or equal to 5% by weight; an amount of structural particles in the form of Al 2 O 3 and/or SiO 2 and/or TiO 2 and/or ZrO 2 present in a size of 80 nm to 200 nm, the amount of the structural particles being less than or equal to 10% by weight; an amount of primary particles in the form of Al 2 O 3 , SiO 2 , ZnO, ZrO 2 , CeO, TiO 2 , and/or mica in a size of 2 nm to 80 nm, the amount of primary particles being less than or equal to 3% by weight; and an organic dispersant.