| 摘要 |
The present invention provides a primer combination, the primer combination is used for plate outside the car, railway vehicles, industrial machinery and so on of the coated after the repair coating of metal products, and for not including chrome pigments are no chrome products. A primer combination, the primer combination includes (A) copolymer containing tertiary amino, antirust pigment chemicals (B), epoxy equivalent weight less than 300 of the hydrolysis of armour silicon alkyl compounds containing epoxy groups (C), and containing epoxy groups of epoxy equivalent to more than 300 hydrolysis of methyl silicon alkyl compounds (D), compounds (C) and (D) the quality than to the (C)/(D) meter in the range of 1/99 to 99/1. |
