Method and system for molded coating on CMC

A method of forming a coating, comprising:

• providing a mold that has a flexible wall formed of silicone elastomer that defines a mold cavity;
• inserting a component that is to be coated into the mold cavity, the component having a component surface roughness and there being a coating gap defined between the component and the flexible wall of the mold cavity;
• introducing a molding slurry into the mold cavity, the molding slurry including a carrier liquid and powder particles, the molding slurry filling the coating gap and contacting the component so as to overcoat the component surface roughness;
• solidifying the molding slurry to form a green coating of powder particles on the component;
• and
• consolidating the green coating to form a final coating on the component, the final coating having a coating surface roughness that is less than the component surface roughness.