ESTonetex Restaura

Applications

•  Heritage restoration and renovation of old buildings: walls, churches, castles, town halls, rustic houses and villas

•  Natural stone restoration and restoration of old walls or lime-based substrates, where compatibility, bonding and durability are key

•  Creation and restoration of vertical and horizontal walls, including walls with damp problems

•  Rockwork and rockeries, and reproduction of stone, rock or brick on facades and walls

•  Sculptures, statues and theming, thanks to its easy carving and mineral anchoring

Technical specifications

Data verified in the official technical data sheet. Full technical documentation and certificates are available on request through the contact form.

Supports

Natural stone, brick, mortar renders, ceramic, concrete blocks and lime-based substrates. Surfaces must be clean and free of dust, release agents, paint or any substance that could affect adhesion; the substrate must be sound, with any shrinkage or settlement cracks already stabilised. EST-26 Multilite is recommended as a primer: it improves adhesion and regulates the absorption and drying of the base (allow 24 hours to dry). In case of damp, or when applying on natural stone, clean first with EST-12 cleaner and apply a consolidant on the stone (EST-26 Multilite or EST-Multilitio). In hot or windy weather, dampen the substrate beforehand. Not suitable for surfaces in continuous contact with water.

How is ESTonetex Restaura mixed?

First prepare the additive mix: 1 litre of EST-26 Multilite per 6 litres of water. Mix one 25 kg bag with 5.7 to 6 litres of that mix for hand-applied plasters up to 1-1.5 cm, 5.5 to 5.8 litres for hand applications over 1.5 cm and 5.8 to 6.2 litres with a spraying machine, until a smooth, lump-free paste is obtained. Once mixed, apply immediately. Clean tools, machinery and hoses with water right after use, before the mortar sets.

How is it applied?

First spread a very thin coat over the substrate, pressing so the air escapes, then build up straight away to a recommended maximum of 5-10 cm or 15-20 cm, depending on whether it is applied by hand or sprayed. It can be sprayed with a spraying machine or a pneumatic plastering machine, or laid by hand. Once trowelled, wait approx. 1-2 hours (sometimes 4-6 hours) to theme, shape, engrave and scrape it with moulds, Japanese trowels or spatulas; then let it dry for 24 hours, during which the final effects and finishes can be done. At singular points (structural joints, joints between different materials or large thicknesses), it is advisable to embed a fibreglass mesh (approx. 10 x 10 mm opening) in the middle of the mortar to reinforce it and prevent cracking. If the thickness exceeds 5 cm, mechanically anchor a galvanised armature to the substrate and add fibreglass rod for better anchoring. You can watch the application tutorial.

Observations and precautions

Do not apply below 5 °C or with risk of rain or frost. Above 30 °C: dampen the base thoroughly, avoid prolonged exposure to the sun and monitor drying times. Contains cement: wear gloves, goggles and a mask, and avoid the formation and build-up of dust. Professional product: always consult the safety data sheet.

Pigmentation

For the colour finish, non-covering silicate glazes are recommended: at least 2-3 coats of EST-26 Multilite colourless or pigmented with Mixol (using oxide pigments in their pure state, 200-350 ml/m² depending on substrate absorption). It can also be pigmented with EST-Decor powder patinas. EST-3 Plus is recommended as a final protection.

Complementary materials

•  EST-26 Multilite: mortar additive (1 litre per 6 litres of water), substrate primer and colour glazes

•  EST-Multilitio: alternative consolidant for natural stone, before applying the mortar

•  EST-12: cleaner for damp substrates or natural stone, before the consolidant

•  Fibreglass mesh and fibreglass rod: reinforcement of singular points and anchoring in large thicknesses

•  Mixol / EST-Decor: pigmentation of glazes and powder patinas

•  EST-3 Plus: mineral water repellent for final protection

Frequently asked questions

What is ESTonetex Restaura mortar used for?
For heritage restoration, renovation of old buildings and natural stone restoration, and also for rockwork, rockeries and sculptures thanks to its easy carving. It is designed for old walls and lime-based substrates.

How does ESTonetex Restaura differ from TXT, Park, Sulfo and Extreme?
Restaura is the lime-based mortar for heritage restoration, formulated to be compatible with natural stone and brick, and it is mixed with EST-26 Multilite. TXT (1 to 20 cm) and Park (1 to 6 cm) are designed for theming and artificial rock, and Sulfo and Extreme for areas in contact with salt or chlorinated water. Restaura, by contrast, is not suitable for continuous contact with water and can be applied from 5 mm up to 15-20 cm in volume in a single coat.

Does natural stone need preparation before applying the mortar?
Yes. The surface must be clean and sound; in case of damp or on natural stone, clean first with EST-12 and apply a consolidant (EST-26 Multilite or EST-Multilitio). EST-26 Multilite is recommended as a primer, left to dry for 24 hours.

How is ESTonetex Restaura mixed and how much liquid does it need?
A mix of 1 litre of EST-26 Multilite per 6 litres of water is prepared, and the 25 kg bag is mixed with 5.5 to 6.2 litres of that mix, depending on hand application (5.7-6 L up to 1-1.5 cm; 5.5-5.8 L over 1.5 cm) or spraying machine (5.8-6.2 L). It is applied immediately.

How much ESTonetex Restaura mortar is needed per m²?
Approximately 16 kg/m² per centimetre of thickness, according to the technical data sheet. A 25 kg bag therefore covers about 1.5 m² at 1 cm thickness (about 0.3 m² at 5 cm).

What thickness can be applied, and is reinforcement needed for large thicknesses?
From 5 mm up to 15-20 cm in volume in a single coat, depending on whether it is applied by hand or sprayed. At singular points, embed a fibreglass mesh in the middle of the mortar, and if the thickness exceeds 5 cm, anchor a galvanised armature and add fibreglass rod.

What temperature can ESTonetex Restaura be applied at?
Between 5 °C and 30 °C. Do not apply with risk of rain or frost; above 30 °C, dampen the base thoroughly, avoid prolonged sun exposure and monitor drying times.

How long can the mortar be worked once applied?
After trowelling, wait approx. 1-2 hours (sometimes 4-6 hours) before theming, shaping, engraving and scraping; the maximum working time depends on temperature and humidity. It is then left to dry for 24 hours before the final effects and finishes.

Can the finish be pigmented and protected?
Yes. Silicate glazes with EST-26 Multilite colourless or pigmented with Mixol (2-3 coats) or EST-Decor powder patinas are recommended, plus a final protection with EST-3 Plus.

How long can ESTonetex Restaura mortar be stored?
Up to 24 months from the manufacturing date, in its original closed packaging, under cover and in a dry place.