Heritage Malta - Conservation Division

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Heritage Malta - Conservation Division We are entrusted with the preservation and treatment of the Maltese National Collection.

The Conservation Division is entrusted with the overall responsibility of protecting and preserving the Maltese National Collection that belong to the various museums and sites within the remit of Heritage Malta. Towards this end, the main functions of the Conservation Division include: the on-site condition assessment of artefacts; on-site maintenance and first-aid interventions; risk assessment of displayed and stored artefacts; collaborating with other professionals to provide the displaying and storage conditions of the Collection; accompanying and supervising the packing, handling and transportation of artefacts; and the remedial conservation and restoration interventions. The Conservation Division has spaceous conservation laboratories and conservators-restorers that are warranted and specialised in several fields of study that can treat different artefacts including: wall paintings; easel paintings; polychrome sculpture; metals; ceramics; stone; textiles; books; and paper.

In the past, paintings on canvas were often reinforced by attaching a second canvas to the back using adhesive. This pro...
23/10/2026

In the past, paintings on canvas were often reinforced by attaching a second canvas to the back using adhesive. This process, known as lining, helps support and protect the original canvas. Over time, however, the added canvas and adhesive can deteriorate. In this case, our conservators carefully removed the second canvas, as shown in the first image. A thick layer of old adhesive remained on the back of the painting, and had to be removed gradually using a combination of mechanical techniques and water-based cleaning methods. This is a lengthy and delicate process that requires great care and precision to remove the adhesive while protecting the original canvas from damage.

Fil-passat, interventi ta’ restawr fuq pitturi fuq it-tila spiss kienu jinvolvu t-twaħħil ta’ tila oħra fuq in-naħa ta’ wara permezz ta’ kolla. Dan il-proċess, magħruf bħala lining, jgħin biex isostni u jippreserva t-tila oriġinali. Madankollu, maż-żmien, kemm it-tila miżjuda kif ukoll il-kolla jistgħu jiddeterjoraw. F’dan il-każ, il-konservaturi tagħna neħħew it-tieni tila permezz ta’ metodi mekkaniċi, kif jidher fl-ewwel ritratt. Fuq in-naħa ta’ wara tal-pittura kien għad fadal saff oħxon ta’ kolla. Din tneħħiet gradwalment permezz ta’ metodi bix-xafra u tindif bl-ilma.

In our Inorganics division, our metal conservators are currently restoring a collection of 16th-century infantry breastp...
15/10/2026

In our Inorganics division, our metal conservators are currently restoring a collection of 16th-century infantry breastplates from the Armoury of the Grand Master’s Palace in Valletta. Over the centuries, natural ageing, combined with Malta’s high relative humidity, has contributed to the deterioration of these historic objects. They were also treated with materials such as boat varnishes and oils in the past. As these coatings aged, they yellowed, accumulated dust and coastal salts, and contributed to the further corrosion of the metal beneath. The treatment began with the careful removal of these aged coatings using selective methods. With patience and precision, the layers of rust were then treated to stabilise the metal substrate and stop active corrosion. Finally, a protective coating was applied to create a barrier against humidity and help safeguard the breastplates for the future.

Fid-Diviżjoni tal-Oġġetti Inorganiċi, ir-restawraturi tal-metall qed jirrestawraw kollezzjoni ta’ korazzi tal-infanterija tas-seklu 16 mill-Armerija tal-Palazz tal-Gran Mastru fil-Belt Valletta. Dawn iddeterjoraw matul is-snin u ġew ittrattati wkoll b’materjali fosthom verniċ tad-dgħajjes u żjut. Maż-żmien, dan il-materjali sfaru, akkumulaw trab u melħ mill-arja, u b’hekk ikkontribwew għal aktar korrużjoni tal-metall. It-trattament beda bit-tneħħija ta’ dan il-kisi antik permezz ta’ metodi selettivi. Sussegwentement, is-saffi tas-sadid ġew ittrattati b’paċenzja u preċiżjoni sabiex jiġi stabbilizzat il-metall u titwaqqaf il-korrużjoni attiva. Fl-aħħar, ġie applikat saff protettiv biex joħloq barriera kontra l-umdità u jgħin fil-ħarsien ta’ dawn il-korazzi għall-ġejjieni.

Our conservators are constantly testing new materials and techniques being developed by our international peers, helping...
08/10/2026

Our conservators are constantly testing new materials and techniques being developed by our international peers, helping us find the safest and most effective approach for treating each painting.

In this case, the first stage of varnish removal was carried out using free solvents to remove the first layer of an old discoloured varnish. However, a second varnish layer, together with older retouchings, remained on the surface.

To address this, we prepared and tested PVA-Borax gels on small areas of the painting. The gels were applied for varying time intervals before being removed and the treated areas rinsed. This allowed us to see how effectively each application was to remove the remaining layers, while protecting the original paint.

The third image shows the results of these tests side by side, allowing us to compare their performance with more conventional varnish-removal methods and select the most suitable approach for the treatment.

Every restoration involves careful testing, research and patience.

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Il-konservaturi kontinwament jipruvaw materjali u tekniki ġodda żviluppati minn kollegi internazzjonali tagħna fil-qasam, u b’hekk nsibu l-aktar metodu sigur u effettiv biex nittrattaw kull pittura.

F’dan il-każ, l-ewwel stadju fit-tneħħija tal-verniċ sar bl-użu ta’ solventi, sabiex jitneħħa l-ewwel saff ta’ verniċ li kien sfar biż-żmien. Madankollu, fuq il-wiċċ baqa’ saff ieħor ta’ verniċ, flimkien ma’ rtokk antik.

Biex nindirizzaw dan, ippreparajna u ppruvajna ġels magħmulin minn PVA-Borax fuq żoni żgħar tal-pittura. Il-ġels ġew applikati għal perjodi ta’ ħin differenti qabel ma tneħħew. Dan ippermetta li nanalizzaw kemm kienet effettivà kull applikazzjoni, filwaqt li pproteġejna ż-żebgħa oriġinali.

It-tielet ritratt juri r-riżultati ta’ dawn it-testijiet maġenb xulxin, sabiex stajna nqabblu l-effettività tagħhom ma’ metodi aktar konvenzjonali ta’ tneħħija tal-verniċ u nagħżlu l-aktar metodu adattat għat-trattament.

Kull proċess ta’ restawr jinvolvi provi bir-reqqa, riċerka u paċenzja.

A frequently overlooked gem of Malta’s modern heritage is the memorial monument commemorating the end of the Cold War an...
23/09/2026

A frequently overlooked gem of Malta’s modern heritage is the memorial monument commemorating the end of the Cold War and the 1989 Malta Summit - beautifully designed by Marco Cremona and standing proudly along the Birżebbuġa shoreline. Our Inorganic Conservation Team completed the conservation of both the steel and stone elements, including the filling of mortar joints, retouching of the painted inscription, and reduction of the metal corrosion layers caused by its proximity to the sea. The internal structure was also cleaned and coated with a protective layer. This project was further enriched by valuable research carried out with the support of private researchers and the Department of Information. A heartfelt thank you to everyone involved.

Wieħed mit-teżori tal-wirt modern ta’ Malta, li spiss jiġi injorat, huwa l-monument kommemorattiv li jfakkar it-tmiem tal-Gwerra Bierda u s-Summit ta’ Malta tal-1989. Dan il-monument, iddisinjat b’sengħa kbira minn Marco Cremona, jispikka b’dinjità tul il-kosta ta’ Birżebbuġa. It-tim ta’ materjali inorganiċi temm il-konservazzjoni kemm tal-elementi tal-azzar kif ukoll dawk tal-ġebel; dan inkluda l-mili tal-ġonot tal-mehrież, l-irtokk tal-iskrizzjoni miżbugħa, u t-tnaqqis tas-saffi tal-korrużjoni tal-metall, li ġie kkawżat mill-prossimità mal-baħar. Wara, il-parti interna ġiet imnaddfa u ġie applikat saff protettiv. Dan il-proġett ġie msaħħaħ permezz ta' riċerka li saret bl-appoġġ ta’ riċerkaturi privati u tad-Dipartiment tal-Informazzjoni. Grazzi minn qalbna lil kull min kien involut.

13/09/2026

🇲🇹 il-konservaturi tagħna bħalissa qed jaħdmu spalla ma' spalla ma' professjonisti oħra fi ħdan l-aġenzija. L-għan ewlieni tagħna huwa li nipproteġu l-affreski prezzjużi tal-Palazz u niżguraw li ma jsirilhom l-ebda ħsara waqt ir-rinovar strutturali.

​🇬🇧 our conservators are working side-by-side with experts across the agency to protect the Palace's historic frescoes during the ongoing structural renovations. Ensuring these masterpieces remain safe is our top priority.

This poster had losses at its corners, requiring careful re-integration during treatment. Several colour-matching trials...
26/08/2026

This poster had losses at its corners, requiring careful re-integration during treatment. Several colour-matching trials were carried out using watercolour on Japanese paper, which was then toned to the correct colour and used to infill the missing area.

Dan il-kartellun kellu partijiet mill-kantunieri neqsin, li kienu jeħtieġu integrazzjoni waqt it-trattament. Saru diversi provi biex jiġi mqabbel il-kulur, bl-użu tal-akwarell fuq karta Ġappuniża, li mbagħad ġiet miżbugħa fil-lewn korrett u ntużat biex timtela l-parti nieqsa.

Our stone and monument conservator-restorers tackled a stubborn black crust on a marble inscription dedicated to Marquis...
06/08/2026

Our stone and monument conservator-restorers tackled a stubborn black crust on a marble inscription dedicated to Marquis Vincenzo Bugeja, damaged during Storm Harry. Using advanced laser cleaning technology in our inorganics lab, they removed it safely and effectively. This experiece reinforced the importance of having cutting-edge tools at our fingertips to preserve our cultural heritage for future generations.

Il-konservaturi restawraturi tal-ġebel u l-monumenti affrontaw sfida kbira biex ineħħu saff iswed u iebes minn iskrizzjoni tal-irħam iddedikata lill-Markiż Vinċenz Bugeja, li ġarrbet ħsarat waqt il-Maltempata Harry. Bl-użu tat-teknoloġija avvanzata tat-tindif bil-lejżer fil-laboratorju tal-materjali inorganiċi, irnexxielhom ineħħu s-saff b'mod sigur u effettiv. Din l-esperjenza saħħet l-importanza li jkollna għodod avvanzati f'idejn il-konservaturi restawraturi biex inkomplu nħarsu l-wirt kulturali tagħna għall-ġenerazzjonijiet li ġejjin.

The painted decorations on the underside of the balcony at the Gran Salon (Archaeology Museum, Valletta) are currently b...
28/07/2026

The painted decorations on the underside of the balcony at the Gran Salon (Archaeology Museum, Valletta) are currently being treated. The paintings exhibited extensive flaking and cupping following the direction of the wood grain. To safeguard all unstable paint during treatment, the affected areas were first faced with Japanese paper. Controlled heat was then carefully applied to gradually bring the lifted paint back into plane. Finally, a compatible and stable adhesive was introduced through the facing paper to securely readhere the paint layers to the wooden support, ensuring their long-term stability while preserving the original surface.

Qed isir ix-xogħol ta’ konservazzjoni tal-pitturi li jżejnu l-parti ta' taħt tal-gallarija ġewwa l-Gran Salon tal-Mużew Nazzjonali tal-Arkeoloġija, il-Belt Valletta. Il-pitturi juru żebgħa li qed tinqala' fid-direzzjoni tal-injam. Iż-żoni affettwati l-ewwel ġew protetti b'karta Ġappuniża sabiex tiġi ppreservata ż-żebgħa matul il-proċess ta’ konsolidazzjoni. Wara, ġiet applikata sħana kkontrollata sabiex id-diformazzjonijiet taż-żebgħa jerġgħu jinġiebu fil-livell tagħhom. Fl-aħħar, ġiet applikata kolla kompatibbli u stabbli, sabiex iż-żebgħa terġa’ titwaħħal mal-injam u tiġi ppreservata għas-snin li ġejjin.

This project is being supported by BOV

🇬🇧 This large Savona maiolica platter (c. 1700), discovered during the 1965 demolition of the Auberge de Auvergne, featu...
06/07/2026

🇬🇧 This large Savona maiolica platter (c. 1700), discovered during the 1965 demolition of the Auberge de Auvergne, features a putto seated on a rocky outcrop surrounded by floral motifs and butterflies. The platter retains perforations for the attachment of handles, which may have originally been made of silver, and bears a potter's mark on the reverse.

The object underwent comprehensive conservation treatment, including surface cleaning, the removal of deteriorated previous repairs, and structural reassembly using reversible conservation materials. Areas of loss were filled, reinforced where necessary, and carefully retouched to achieve visual integration with the original surface. A final protective coating was applied to ensure the long-term preservation of the object. The platter is on display at the Inquisitor's Palace as part of the current Fare Convito exhibit.

🇲🇹 Dan il-platt kbir tal-majolika minn Savona (madwar l-1700), li nstab waqt it-twaqqigħ tal-Auberge de Provence fl-1965, juri putto bilqiegħda fuq il-blat imdawwar b'motivi ta' fjuri u friefet. Il-platt għad għandu perforazzjonijiet għall-immuntar tal-manki, li x'aktarx oriġinarjament kienu tal-fidda. Għandu wkoll marka tal-fuħħar fuq in-naħa ta' wara.

L-oġġett għadda minn trattament komprensiv ta' konservazzjoni, li kien jinkludi t-tindif tal-wiċċ, it-tneħħija ta' tiswijiet preċedenti li kienu ddeterjoraw, u l-assemblaġġ tal-frammenti bl-użu ta' materjali riversibbli. Iż-żoni neqsin ġew mimlija, imsaħħa fejn kien meħtieġ, u rtukkati b'attenzjoni sabiex jinkiseb bilanċ viżiv mal-wiċċ oriġinali. Fl-aħħar, ġie applikat saff protettiv sabiex l-oġġett jiġi preservat għas-snin li ġejjin.

The degradation of the cellulose fibres in paper artefacts causes the accumulation of yellow acidic compounds. When wash...
23/06/2026

The degradation of the cellulose fibres in paper artefacts causes the accumulation of yellow acidic compounds. When washing is possible, these acidic compounds could be extracted by clean water, improving both the stability and appearance of the paper. The test tubes show the colour difference of the water before and after cleaning the paper artefact.

Il-proċess tad-degradazzjoni taċ-ċelluloża fil-karti jipproduċi prodotti aċidużi u sofor. Meta jkun hemm il-possibbiltà biex il-karta tinħasel, dawn il-komposti aċidużi jistgħu jiġu estratti bl-ilma nadif, u b’hekk titjieb kemm l-istabbiltà kif ukoll id-dehra tal-karta. It-test tubes juru d-differenza fil-kulur tal-ilma qabel u wara t-tindif tal-karta.

Address

35, Heritage Malta Conservation Division, Ex Royal Naval Hospital, Dawret Fra Giovanni Bichi
Il-Kalkara
KKR1280

Opening Hours

Monday 07:00 - 16:00
Tuesday 07:00 - 16:00
Wednesday 07:00 - 16:00
Thursday 07:00 - 16:00
Friday 07:00 - 16:00

Telephone

+35622954000

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