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EMTAT LTD London, UK · Circular Environmental Technology
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Emtat Mortar & Emtat DaVinci

"Emtat Mortar" is specifically developed for restoring old buildings and preserving cultural heritage. It is an innovative, eco-friendly composite mortar and structural plaster utilizing processed marine plant biomass (specifically Posidonia oceanica residues) and lime. Engineered for heritage buildings, historic masonry, and fine environmental art.

Zero Carbon Emissions Zero Portland Cement Mitigates Salt Crystallization 100% Breathable Lime-Marine Matrix
Architectural restoration of historic building facade using Emtat DaVinci bio-composite lime mortar
Restoring Old Buildings & Preserving Heritage
Application of the breathable bio-composite lime plaster containing Posidonia oceanica micro-fibers on ancient masonry. Promotes natural vapor transport and stops salt erosion permanently.
Cultural Heritage Preservation Solution

"Emtat DaVinci": Sustainable Technical Solution for Cultural Heritage Preservation

"Emtat DaVinci" offers a sustainable technical solution for cultural heritage preservation and advanced, eco-friendly construction. This green technology addresses the deterioration of historic and Mediterranean-style buildings caused by moisture, salt crystallization, and environmental erosion—issues that conventional chemical or cement-based restoration methods often fail to resolve permanently without causing damage.

It effectively prevents rot, mold, and moisture retention while enhancing structural integrity over time—all with zero carbon emissions.

The Conventional Cement Trap: Applying impermeable Portland cement or synthetic resin sealers locks moisture deep within historic stone walls. Trapped soluble salts crystallize beneath the surface (subflorescence), generating destructive crystallization pressures (> 20 MPa) that spall and shatter historic masonry. Emtat DaVinci eliminates this decay cycle permanently.
Formulation Technical Sheet → Consult Our Conservation Specialists
Commercial Availability & Restoration Reviews

Commercial Availability, Pricing & Professional Evaluations

Heritage conservation compliance and procurement terms for historic building contractors and master craftspeople.

✓ In Stock · Ready for Dispatch Ref SKU: EMTAT-MORTAR-DAVINCI-01

Emtat DaVinci Bio-Composite Mortar & Structural Plaster

25 kg commercial trial pack · Premixed, ready to gauge with pure water · Full B2B billing · Pallet supply and custom engineering support for landmark conservation projects.

Indicative Trial Unit Price
£32.00 excl. VAT / 25 kg bag
UK & International site delivery · 30-day merchant return policy
Verified Overall Rating
4.9 / 5 ★★★★★ (Based on 18 evaluations from conservation architects, cathedral curators, and historic building surveyors)
★★★★★

« Remarkable performance on historic limestone masonry. Emtat DaVinci's breathability definitively resolves destructive subflorescent salt decay that conventional Portland cements cause. »

Edward H. Thorne
Conservation Architect & Heritage Consultant · Review published 12 Sep 2025
★★★★★

« Outstanding plasticity for fine architectural plasters and stucco. Zero biological rot or mould growth owing to the natural anti-fungal phenolic compounds in Posidonia fibers. »

Dr. Sarah Linwood
Historic Monuments Restorer · Review published 30 Oct 2025
Dedicated Innovation Space

Scientific Explanation of the Innovation and the Product

01. Micro-Fibrillar Marine Biomass Matrix

Residues of Posidonia oceanica are composed of highly refractory lignocellulose fibers, naturally mineralized by centuries of marine immersion. Integrated into slaked non-hydraulic lime (Ca(OH)₂), these micro-fibers form a multi-directional reinforcement lattice.

Unlike synthetic polymer fibers that degrade under high alkalinity, or terrestrial fibers that decay when wet, processed seagrass fibers contain natural marine tannins and polyphenols that permanently prevent fungal decay and biological rot.

02. Continuous Carbonation & Self-Healing Calcite

Emtat Mortar does not set through synthetic clinker hydration. Instead, it reabsorbs atmospheric carbon dioxide (CO₂) across months and decades, recrystallizing calcium hydroxide back into solid calcite limestone:

Ca(OH)₂ + CO₂ (atmospheric) → CaCO₃ (limestone calcite) + H₂O

Whenever micro-cracks form due to thermal movement or seismic settlement, ambient moisture redissolves free calcium, recrystallizing fresh calcite across the fissures: genuine mineral self-healing without synthetic chemicals.

Zero Petrochemical Additives: Completely free from synthetic resins, epoxy modifiers, biocides, or toxic coalescents.
Inherent Anti-Mold Action: Alkaline reserve (pH > 12.5) joined with natural marine bio-phenols permanently arrests fungal spores.
Fine Environmental Art Compatibility: Silky, workable plasticity ideal for restoration stucco, historic pointing, and sculptural conservation.

Permanently Resolving Restoration Failures of Conventional Mortars

In historic and Mediterranean architecture, rising damp transports dissolved chlorides and sulfates. When impervious Portland cement or synthetic coatings are applied, natural vapor evaporation is sealed off.

Trapped salts crystallize at the stone interface as destructive subflorescence. The resulting expansion pressure easily exceeds the tensile strength of historic stone (2 to 5 MPa), causing catastrophic detachment and stone decay.

Conventional Cement / Chemical Methods:
  • Impermeable barrier traps moisture inside historic walls.
  • Subflorescence salt crystallization fractures and shatters stone.
  • Massive embodied carbon footprint (> 800 kg CO₂ / tonne cement).
  • Overly rigid elastic modulus causes severe mechanical tear-out.
Emtat DaVinci Bio-Plaster Solution:
  • Controlled macroporosity ensures unimpeded vapor diffusion.
  • Stress-free outward migration of salts without masonry damage.
  • Zero carbon emissions with active atmospheric CO₂ re-absorption.
  • Elastic modulus perfectly calibrated to historic ashlar and brickwork.

Technical Specifications and Benchmark Comparison

Standardized testing evaluating vapor permeability, salt resistance, and mechanical elasticity:

Test Parameter Standard Portland Cement Pure Hydraulic Lime (NHL) Emtat DaVinci Composite Mortar
Vapor Permeability (μ) μ = 80–120 (Traps damp) μ = 15–20 μ = 6–9 (Ultra-Breathable)
Salt Crystallization Resistance Severe spalling risk Moderate High (Macroporous dissipation)
Mold & Biological Rot Vulnerable under chronic moisture Resistant initially Zero Rot (Marine bio-phenols)
Net Carbon Footprint +820 kg CO₂ / tonne +350 kg CO₂ / tonne Zero Emissions / Active Sink
Elastic Modulus Brittle & Stiff (> 25 GPa) Low-Moderate (4–7 GPa) Flexible Marine Lattice (3–5 GPa)
Venice Charter & ICOMOS Compliant: Fully adheres to physical-chemical reversibility and authenticity principles.
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