+x torsten Ker - 9/28/2020 12:19:40 PMthats a 0.5mm thickness, you may be able to carefully send a bit down on the outside so that the outside patch does not stick out too much, patch it.Don't forget tho drill the end of the crack, once done on the outside re-enforce the inside.How do you done finish the part, spray paint or XCR coating resin. The latter will get the best result to hide it best as possibleMay be faster and cheaper to do a new part