Brief historical review of finishes used for musical instruments. History of shellac. Identification and selection of materials. Surface preparation and abrasives. Use of polishing tools. French gloss technique. Resins and alcohols.

Pore sealing. Opening of the gloss, thickening, stretching and alcohol coating. Leveled and polished.


Oil finishes. Space climate control. Preparation and storage. Common finishing problems and their solution.


Origin, description, and history of nitrocellulose lacquer. Surface preparation and abrasives. Lacquer preparation. Solvents and thinners. Work environment. Use of polishing tools. Finishing technique by pad, brush and spray. Polishes and sealants. Dyes and additives. Gloss application. Leveled and polished.


Masking techniques. Design and use of workspaces. Paints, systems and products. Climate control of the space, use of curing oven. Use of polyurethane, polyester and epoxy lacquers.

General information

Goals. The main objective is educational, theoretical and practical knowledge is provided to develop basic skills in French polishing technique applying shellac and the different ways of applying nitrocellulose lacquers. The secondary is to guide each person in the experience of comprehensive repair of musical instruments in an artisanal way, achieving a high level of protection and aesthetics.

Recipients. All those people over 18 years old who wish to learn guitar making and develop it professionally, as well as those musicians who wish to keep their instrument in optimal conditions. It is not necessary to have previous experience in the field or to have knowledge of music.

Course modality. This program can be chosen in regular classes, intensive classes or as individual classes.

The regular group classes, 2 hours and a half weekly, with a maximum of 8 students per course. Intensive and group course of 8 hours in one day. The individual classes are organized with each student (2 hours minimum/5 hours maximum).
Each student brings one or more instruments and practices with it, under the supervision of the teacher. If the student do not have a guitar, the school can provide it for practices. The pace of work in class, and the deepening of knowledge are defined by the teaching staff, according to the interests of each student.

We have a work space with all the appropriate comfort, lighting and safety conditions, in a workshop equipped with the necessary machines and tools to carry out the guitar buildings.

Schedule. Regular classes run from February to December. You can start at any time of the year, as long as there is vacancy available. Intensive courses are scheduled twice a year. The individual classes are agreed with each student.

Duración. El tipo de aprendizaje y los tiempos que este demande son individuales: el curso inicia cuando la persona comienza su primer proyecto y dependiendo de la búsqueda de cada cual, puede terminar con la finalización de ese propósito o continuar en el aprendizaje de la luthería y terminar cuando decida que está en condiciones de afrontar el oficio profesionalmente. Independientemente del tiempo que le demande a cada persona.