1.The coating film is murky grey or black
①The vacuum degree of magnetron sputtering coating equipment is too low that need to be raised to 0.4pa.
②The sputtering time is too long that need to shorten the sputtering time.③Air leakage occurs in the inflatable system of magnetron sputter coating equipment.
Check the inflatable system and replace it if damage is found.
2. The color of the coating is uneven
①The film is too thin that need to increase the sputtering speed or prolong the sputtering time of the equipment.
②The shape of the product is too complex that need to properly improve the rotation speed of the
product in the magnetron sputter coating equipment.
3. Coating film layer crack
①The viscosity of the coating is too high that need to reduce the viscosity of the coating.
②The coating is too thick that need to cut the sputtering time properly
③The temperature of magnetron sputter coating equipment is too high that need to shorten the
heating time properly.
4.The coating film surface is not clean
①The product is not completely dried after cleaning before coating that need to strengthen the
product treatment before coating.
②The operator has touched the product by hand, if caused by this case, should require the operator
to prohibit the body touch from coating the product.