Glass fiber impregnating compound for coloring-grade SMC (Sheet Molding Compound) as well as preparation method, product and application thereof

The invention discloses a glass fiber impregnating compound for coloring-grade SMC (Sheet Molding Compound). The glass fiber impregnating compound comprises effective components and water, the solid content of the impregnating compound is 3.8%-13.8%; the solid mass of the effective components accounts for 9.0-20% of the total solid mass of the impregnating compound, the film-forming agent accounts for 36-72% of the total solid mass of the impregnating compound, the antistatic agent accounts for 3.0-9.0% of the total solid mass of the impregnating compound, the flatting agent accounts for 4.0-11% of the total solid mass of the impregnating compound, and the hand feeling agent accounts for 12-27% of the total solid mass of the impregnating compound. Wherein the hand feeling agent is a high-molecular polymer formed by polymerizing terminated and modified silicone oil containing long-chain alkyl; the film-forming agent is a mixture of a first film-forming agent and a second film-forming agent, the mass ratio of t