Explanation of the problems, ending in the choice of a portable support for removed mural paintings. Presentation of methods used: transportation and exhibition on frames of epoxy resins for three fragments, one with a flat surface, another with an undulating surface curved in an arc, and a third with a vertical surface in undulating relief. Criticism of techniques. Polyurethane foam and metallic paste provide rigid supports and shaped molds. Conclusion: Research to be conducted before the creation of large frames with double curves. A.A. (abridged) -- AATA