Materiais de intervenção de conservação e restauro em vidro arqueológico – uma revisão bibliográfica
DOI:
https://doi.org/10.14568/cp2020045Palavras-chave:
Vidro arqueológico, materiais de limpeza, adesivos e consolidantes, materiais de preenchimento de lacunasResumo
As intervenções sobre objetos arqueológicos em vidro envolvem frequentemente a remoção de materiais de intervenções anteriores, sendo fundamental o conhecimento sobre metodologias e práticas presentes e passadas. Neste artigo apresenta-se o levantamento bibliográfico e a
análise crítica dos principais materiais utilizados nas diferentes etapas de intervenção: limpeza, consolidação, união de fragmentos e preenchimento de lacunas. Foi identificado um elevado número de produtos utilizados, mostrando uma variedade de metodologias usadas entre os profissionais da área. Os métodos de limpeza variam desde os métodos mecânicos com recurso a pincel (menos invasivos) até ao uso de diversas soluções ácidas, algumas das quais podem colocar em risco a integridade do objeto, sendo o mais referido o ácido etilenodiamina tetraacético. Destaca-se o uso de resinas epoxídicas enquanto adesivo, consolidante e material de preenchimento, bem como a resina acrílica Paraloid B72, identificada como reversível, incolor, estável e inerte. Este levantamento e análise da bibliografia revela a necessidade de implementação de metodologias comuns de intervenção dedicadas a este material.
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