Farecla G MATT Advanced Flatting Liquid 500ml. This G MATT creates an even matt finish, does not stain mouldings or trims, contains detergent to remove wax and traffic film.When carrying out local repairs or blending in new paintwork, the use of a flatting liquid ensures a more even key over the panel. It also helps to prevent deep scratches or tramlines which can sometimes show through paintwork.Easy to use. G MATT is used to scuff a painted surface and give it a matt finish. It is applied to a surface with an abrasive pad prior to painting to ensure good adhesion.