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Intonachino Arenino MGN

Coloured Lime Finish (24 colours)
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Intonachino Arenino MGN - Description

INTONACHINO ARENINO MGN is a naturally coloured, breathable lime finishing plaster, suitable for both interior and exterior applications. The colouring is stable in time and weatherproof as it is made with the exclusive use of natural coloured earths and marble powder, therefore it is not subject to the classic phenomenon of discolouration or fading.

This product is available in 24 colours - 12 pastel colours (options 01-12) and 12 mediterranean colours (options 101-112), including white (option 01).

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Key Features

Here are some key features of this product.
Breathable
Being a lime plaster, it's naturally vapour permeable or breathable.
Weatherproof
Once set, it becomes resistant to weather and rain.
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.  
Multiple Colours
This is a coloured plaster that comes in multiple colours.

Composition

  • Natural air lime: highest purity lime containing min 90% CaO, classified as CL90S according to EN-459-1 standard
  • Cocciopesto (ground terracotta): brick powder milled from traditional porous bricks, wood fired at low temperatures at around 600°C
  • Natural hydraulic lime NHL 3.5, certified according to EN-459-1 standard
  • Marble powder: certified according to EN 12620 standard
  • Natural river sands: washed river sands, free of salts and impurities, certified according to EN 13139 standard
  • Natural earth pigments for colouring. Highly resistant to UV and sunlight. Won’t fade or discolour.  

Technical Data

Granulation (mm)
0-1
Vapour diffusion resistance (μ)
11
Declared thermal conductivity - λ (D)
0.53
Water absorption
W0
pH
10.5
Adhesion (N / mm²)
0.3
Compressive strength (N / mm²)
3.1
Bulk density (kg / m³)
1448
Bag weight (kg)
25
Water intake (litre / bag)
5
Consumption (kg / m² / cm)
10
Application temperature (°C)
5-30
Chloride content (%)
None
Harmful substances
None
Colour options
24
Recommended thickness (mm)
3-4

Certifications

  • UNI EN 998-1:2016 – Certified General Purpose Plaster for Internal / External Use (GP)
  • Green Environmental Criteria (CAM) Declaration: a “green purchase” environmental declaration, indicating that this product satisfies the environmental requirements of the Italian Government, representing the best ecological solution for a project when taking into account the entire life cycle of a product from manufacturing to disposal.
  • CE Marking: this product complies with all relevant European Union regulations, meeting all performance requirements required by the CE marking.

Work Specifications & Application

Here are the recommended work specifications for this plaster.

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Finishing

This coloured finish (including white) can be used as a normal finish. Alternatively, if the material is compacted really well, it is suitable for the creation of Venetian Marmorino-like high end, very smooth finishes.    

[4 mm] Lime finish applied as:

  • â–ˆ [2 mm] First half of the finish.
  • â–’ [Mesh] Fibreglass fine mesh (4 x 4 mm): embed a mesh into the finish for added flexibility.
  • â–ˆ [2 mm] Second half of the finish.

[3-4 mm] Ultra-high-quality lime finish applied in 3 coats as:

  • â–ˆ [1 mm] First coat, compacted really well.
  • â–ˆ [1 mm] Second coat, compacted really well.
  • â–ˆ [1 mm] Third coat, compacted really well.
  • â–’ [Oil + Soap] A mix of natural oils and soaps for increased waterproofing and shine.

Application Instructions

Here are some key technical points about how to apply this material correctly. Please have your plasterer read / watch the application instructions before applying the product. If any questions, please contact us, happy to help.

  • 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. 
  • IMPORTANT: Dry to wet mixing: plasters with hydraulic ingredients should always be mixed from dry to wet (workable) state. Add your powder to a bit of water, start mixing and gradually add more water till the right consistency is reached. This is the right way. Mixing the other way – wet to dry mixing – by starting with lots of water then gradually adding powder to the right consistency, is incorrect. Reason: excessive wetting weakens the plaster, alters its hydraulic set resulting in less performant, more friable and shorter lasting plasters.
  • Recommended thickness of the finish: 3-4 mm. For best results, the finish should be applied in two “half-coats” of 2 mm each, with a fine 3-4 mm fibreglass mesh embedded in-between. The mesh makes the finish more flexible, minimizing the appearance of fine cracks.
  • Various textured finishes can be achieved, depending on the finishing technique used:
    • Coarse finish: by finishing the surface with a sponge or wooden trowel.
    • Smooth finish: by using a stainless steel trowel, compressing and smoothing the semi-dry surface, the sand granules are pushed into the material, resulting in a smooth finish.
    • Washed finish: by finishing the surface with a sponge trowel. After the surface has hardened, the surface is washed with water and blotted with a sponge to bring out the aggregate, its specific texture and colour.
  • 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).

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. 

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Solutions

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

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Similar Category 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.