Calcina Bianca MGN

Traditional White Lime Plaster

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Calcina Bianca MGN - Description

Calcina Bianca MGN is a premixed mortar based on very high-purity air lime (over 90% calcium oxide), a small percentage of natural white hydraulic lime, and washed river sands without impurities. Due to the extremely high-quality raw materials it is suitable for bio/green buildings, both internally or externally.

Calcina Bianca is an extremely breathable lime plaster, with high adhesion and a low content of water-soluble salts.

The plaster can be applied both internally and externally, by hand trowel or plastering machines, on brickwork or natural stone. It can also be applied on reinforced concrete after applying the RINZAFFO MGN base coat first. Once set, a natural lime finish, such as Calcina Fine, Intonachino Arenino or Marmorino, can be applied.

Key Features

Here are some key features of this product.

Breathable

Being a lime plaster, it's naturally vapour permeable or breathable.

No cement, no chemicals

This plaster does not contain chemicals or cement - it only contains natural materials.

Suitable for Listed buildings

This plaster is suitable for historic or listed buildings and heritage renovations.  

Composition

  • Natural air lime: highest purity lime containing min 90% CaO, classified as CL90S according to EN-459-1 standard
  • Natural hydraulic lime NHL 3.5, certified according to EN-459-1 standard
  • Natural river sands: washed river sands, free of salts and impurities, certified according to EN 13139 standard
  • Marble powders, certified according to EN 12620 standard

Technical Data

Granulation (mm)
0-3
Vapour diffusion resistance (μ)
14
Declared thermal conductivity - λ (D)
0.50
Water absorption
W0
pH
10.5
Adhesion (N / mm²)
0.2
Compressive strength (N / mm²)
CS II
Bulk density (kg / m³)
1450
Bag weight (kg)
25
Water intake (litre / bag)
5
Consumption (kg / m² / cm)
15
Application temperature (°C)
5-30
Fire rating
A1
Chloride content (%)
None
Harmful substances
None
Colour
White
Recommended thickness (mm)
15-20

Certifications

  • UNI EN 998-1:2016 – Certified General Purpose Plaster for Internal / External Use (GP)
  • CE Marking: this product complies with all relevant European Union regulations, meeting all performance requirements required by the CE marking.

Solutions

This material can be used in the following applications or solutions:

Photo Galleries

Here are some photos demonstrating this solution. Click on any image to open the photo gallery.

1 found

Old Cottage Wall Replastering

This old cottage has been suffering from rising damp for quite a while. As a result the internal plastering has been blown. The long-time fix involves the replastering of the wall with the Rinzaffo MGN Roman salt-resistant base coat, providing a building-friendly fix for several decades.  

Similar Products

Here are some other similar products of the same category (e.g. other main coats or finishes). Depending on your application, you could use these as alternative products. 

Product Combinations

Although all MGN plasters can be used on their own, in many applications they perform best when certain materials are applied together as a plastering system complementing and reinforcing each other.

Here are some other plasters which are recommended to be used with this one.

Projects

Here are some of our projects where this plaster has been used:

Any Questions? Need Technical Advice?

If you have any questions about a project, a problem, a solution, or any of our plasters - please get in touch.

We understand that each project is unique. Using the contact form below feel free to ask us any question. Give us as much detail as you can about your project so we can get back to you with more relevant answers. 

Application

Here are some key technical points about how to apply this material correctly:

  • Clean the masonry: the plaster must be applied on a cleaned and uniformly wet substrate. All crumbling and loose parts must be removed by brushing so the masonry is free of dust, salts and oils. If possible, also wash the walls with a pressure washer; this will clean and wet the walls in one go. Close larger holes with lime mortar and pieces of bricks.
  • Mixing: mix the material with clean tap water only without adding anything else (no other material or additive), until a homogenous, creamy-consistency mix is obtained. 
  • Recommended thickness: min recommended thickness for interior walls is 15 mm, for external walls is 20 mm.
  • Application: apply the plaster in 10 mm coats.
  • Additional coats can be applied in 10 mm increments. Use an embedded fibreglass mesh for extra reinforcement over the recommended thickness.
  • Finish options: main lime coats can be optionally left without finishing. To have a finished surface any MGN finish can be applied: Calcina Fine MGN (white lime finish), Intonachino Arenino MGN (coloured lime finish) or Marmorino MGN (Venetian Marmorino finish).
  • Painting: as this is a breathable lime plaster, wall surfaces should be painted with a breathable mineral paint. Wallpapers and modern emulsion petrol-based paints, with no or limited breathability, should be avoided.
  • Application conditions: ambient and wall temperatures must be between +5 to +30°C during application. Surfaces should be protected from rain and humidity until they have completely dried (approx. 3 – 10 days depending on weather conditions).

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