Without nickel hole sealing agent

The invention discloses a kind of no nickel hole sealing agent, compounded using calcium acetate, cobalt acetate, sodium metnylene bis-naphthalene sulfonate, lauryl sodium sulfate and sodium benzoate, in use, fluting ratio is 0.3-0.8%, 55-65 DEG C of temperature, pH value 6-7.The present invention substitutes nickel with calcium, while being aided with Rare-Earth Cobalt, making up the problem of calcium corrosion resistance deficiency.Sodium metnylene bis-naphthalene sulfonate, lauryl sodium sulfate dispersing agent are added, sodium benzoate improves the stability of the migration hydrolysis efficiency and dyestuff of calcium.Waste water is containing heavy metal nickel after solving the problems, such as conventional oxidation coloring sealing of hole, and sealing of hole effect is good, and color difference is small, and sealing of hole temperature is low, and the sealing of hole time is short.Waste water is free of heavy metal after sealing of hole washing.There are high economic benefit and the value of environmental protection.