This invention discloses a recoatable
ceramic coating, its preparation method, and its application in
honeycomb non-stick cookware. The primer, calculated at 100%, contains: 20-22% silica
sol, 3-4% 1% NaOH solution, 10-12%
pigment, 8-10% filler, 1-1.5% dispersant, 18-20%
methyltrimethoxysilane, 2-4% KH560, 8-10% PAI, 3-5% isopropanol, 3-5%
acetic acid, and 1-2% leveling agent. The topcoat, calculated at 100%, contains: 30-35% silica
sol, 25-30%
methyltrimethoxysilane, 3-5% KH560, 8-10% PAI, 3-5% isopropanol, 3-5%
acetic acid, 2-4% leveling agent, and 2-4% non-stick additive; the balance is water. This invention solves the problems of
recoating the cured
ceramic coating, interlayer adhesion, and
adhesion strength between the
coating and raised
metal parts while maintaining the
honeycomb non-stick cookware manufacturing process.