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Menu navigation instructions

Instructions for keyboard users

This menu requires arrow keys to be able to use it. The menu has up to three levels:

  • First level: main menu options
  • Second level: sub-options for elements from the first level
  • Third level: sub-options for elements from the second level

Browsing instructions:

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  1. Inici
  2. / Restauració
  3. / Fourth-century glass vase

Fourth-century glass vase

Imatge

Restoration:
The vase, found during excavations, fragmented into six pieces and incomplete, is on show at the Plaça del Rei museum site. Restoration work enhanced the solidity and presentation of the piece. The fragments were joined together and the missing parts were reconstructed, at all times avoiding any intervention on the original pieces.

Glass vase
4th Century
Origin: excavations in Carrer de la Ciutat, year 2007.
MHCB39676

Direction and coordination: Servei de Conservació Preventiva i Restauració (Museu d'Història de Barcelona).
Restorer: Marta Golobardes.
Year: 2014​

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Vas de vidre bufat MHCB39676 de procedència arqueològica abans del tractament. (©M.Golobardes-MUHBA)
 

L’Anàlisi de la pasta vítria, de la forma, de la decoració i del tipus d’alteració determina que dels 34 fragments presentats, només 6 pertanyen al vas, 3 d’ells amb connexió.(©M.Golobardes-MUHBA)

El gruix del vidre del vas oscil·la entre 1 i 3 mm i està decorat amb una sanefa de punts alternats amb grups de tres petits punts disposats en triangle. (©M.Golobardes-MUHBA)

La decoració és en relleu i està feta a base de punts de vidre blau aplicats en calent. (©M.Golobardes-MUHBA)
 

El perfil complet del vas està definit gràcies al punt d’unió entre la base i el conjunt de 3 fragments originals de la part de la boca. (©del dibuix M.Golobardes-MUHBA)

Es proposa reintegrar les parts que falten adherint-hi peces de resina amb la forma de l’original. (©M.Golobardes-MUHBA)
 

Les peces de resina es realitzen de forma independent evitant el contacte directe amb l’original.(©M.Golobardes-MUHBA)
 

Elaboració d’un model de fang per a tenir la referència del perfil del vas i poder-hi adaptar la forma dels motlles que serviran per a fer les peces de resina.(©M.Golobardes-MUHBA)

Preparació del color de la reintegració amb resina epoxídica Araldite 2020® i pigments microlítics (gra molt fi): Microlith Blau GS-T, Microlith Groc 3R-T, Microlith Orasol Groc 2GLN i Microlith ocre.(©M.Golobardes-MUHBA)

Preparació dels motlles de cera de dentista o de Reus seguint la forma del vas i colat de la resina en els motlles per a obtenir les diferents plaques.(©M.Golobardes-MUHBA)
 

Ajust de la forma de cada placa, rebaixant la resina amb Microtorn amb broca de pedra rosa, bisturí i paper de vidre de diferents granulometries.(©M.Golobardes-MUHBA)

Les zones d’unió originals han estat protegides prèviament amb Paraloid B-72 al 3% en acetona per tal de garantir la reversibilitat del procés. (©M.Golobardes-MUHBA)

Adhesió de les plaques externes de resina a les parts originals. (©M.Golobardes-MUHBA)
 
 
 

La superfície interior de les reintegracions volumètriques s’ha envernissat amb resina acrílica Paraloid B-72 preparat al 5% i 8% en Xilè, tintada amb pigment microlític Microlith Groc 3R-T, aplicada a pinzell.(©Pep Parer-MUHBA)

Vas de vidre després del tractament. (©Pep Parer-MUHBA)

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