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MGN — The Art of Plaster since 1980

This is the MGN gateway to the english speaking world

For 40 years, MGN have been reproducing plasterwork that is identical to the original historical pieces from the ancient sites of Rome, pomeii, etc.

Welcome to the official UK website of MGN Italy. 

MGN was born from the extraordinary experience of master craftsman Naldo Busato, who has been producing plasters and mortars according to ancient Roman formulas for over 40 years. He has combined a unique blend of practical knowledge, important professional collaborations and cutting-edge technologies to create a range of products with inimitable characteristics. The company specialises in the production and reproduction of various types of plasters and mortars for restoration and renovation. MGN products are also suitable for new constructions, ensuring high-quality living comfort.

MGN’s production includes: dehumidifying plasters, Cocciopesto-based plasters, coloured plasters entirely in the mass, thermal plasters, natural Marmorini, mortars for bedding and pointing, consolidating concrete, cocciopesto screed, supply of plaster for the application of Venetian terrazzo and pastellone, certified in accordance with current regulations.

Introducing Cocciopesto to the UK

Cocciopesto is a 2,000-year-old high-performance plaster that blends chemistry, craft, and timeless aesthetics.

It is made by mixing slaked lime with finely crushed terracotta (broken tiles, bricks, or pottery). The result? A warm pink-to-rust surface that’s not just beautiful—but remarkably durable and breathable.

What makes it special is chemistry: the powdered ceramic reacts with lime in a pozzolanic reaction, creating a hydraulic set. That means cocciopesto can harden even in damp conditions and becomes naturally water-resistant. The Romans used it in baths, cisterns, floors, and walls—anywhere moisture was an issue.

Featured product categories

waterproofing

Thermal insulation

Cocciopesto heat storage floors

Natural building solutions for lasting protection, comfort, and performance.
Waterproofing, thermal insulation, and heat-storing lime floors

—engineered for healthier spaces.

The story of mgn

In 2003, the MGN laboratory was established, entirely dedicated to the analysis of materials and formulas and accredited by Accredia. It was strongly desired by master Busato: after relying on external laboratories and that of the Superintendency during his years in Venice, he knew how important it was to test a product in all conditions. It was a step towards the future, dictated by the essential need for better, more durable and sustainable materials.

NALDO BUSATO

Founder of MGN

Waterproofing lime plasterRinzaffo MGN

stops moisture at its source while keeping walls breathable and durable.

 

EWI & Internal Wall insulationTermorasante Aerogel MGN

delivers exceptional thermal insulation without sacrificing breathability.

Our Customers say

It’s a 100-year-old building, and there was a lot of black mould in the corners — almost a metre high. The walls weren’t breathing, so we had condensation and water running down them. It’s a solid brick wall and there was no thermal insulation at all. We applied a basecoat and 4 cm of thermal insulation. It retains heat much better now and the difference is noticeable — it’s a lot warmer. We now have a breathable wall and shouldn’t have those issues anymore.

Greg B.

West Sussex

The building was erected around 1700 and originally functioned as a watermill. Whenever we have heavy rainfall — like earlier this year — the water can rise by up to six feet in 12 hours, flooding the building. The work was carried out over the last six to eight weeks, and we applied Rinzaffo MGN plaster to the walls. After the winter flood, of course, we had water backed up against it again. As soon as the water level dropped, you wouldn’t have been able to tell — there was no trace or watermark on the plaster, and the wall dried out completely.

Edmund H.

Old Mill in Wales

I’ve renovated over 20 properties, and this one is a five-storey Georgian house, Grade II listed, built around 1790. The walls were taken back to the original brickwork and treated with Rinzaffo MGN, followed by Calcina Bianca MGN and a top coat. I must say, these lime plasters are a much better way of treating a very old, much-loved building.

Hamidah S.

Developer, Central London

(This is a job for builder Jonathan, on his own old farmhouse) We have done a lot of renovations on listed and old dwellings. Rinzaffo MGN, this particular basecoat is a waterproof, watertight lime render. It does everything we want and allows the building to breathe. It goes hand in hand with the lime work inside.

Jonathan T.

Builder, Shropshire

I grew up in a small village in Essex and worked on plenty of barns, farm buildings and cottages — they’ve all got their own character. I’ve always liked lime, to be honest. I’ve been using Rinzaffo MGN and yeah, it’s a really nice material. It stops the salts and moisture coming back through, it’s environmentally friendly, and it lets the house breathe. It’s just a good material to work with.

James S.

Builder, South London

ALL THE SOLUTIONS FOR OLD & LISTED BUILDINGS

Preserve the past. Improve the future.
Natural lime solutions that respect original materials
while enhancing building performance.