Skimming Mortar
Natural Calk Skimming Mortar is designed for smoothing uneven and non-uniform surfaces, to be applied before interior or exterior finishes. It is ideal for correcting surface irregularities and inconsistencies on rough masonry, as well as for filling and patching.
Produced with wood-fired magnesium lime putty, in accordance with UNI EN 459-1 standards and naturally aged in tanks, the mortar is mixed with selected aggregates, without the addition of cement or chemical additives.
Scope and Product Application
To obtain a homogeneous mixture, mechanically stir Natural Calk Skimming Mortar with a low-speed mixing paddle. Apply in one or more coats as needed, optionally embedding mesh for plasters or insulation systems. Application is done using a steel trowel or spatula, with final finishing using a sponge or steel float.
This mortar can be used in the Tillica Pasta system as a preparatory layer on old walls, aiming at levelling and unifying surfaces that are uneven after removing compromised finishing layers affected by moisture and mould. This removal step is essential to open the pores of the masonry and eliminate mould trapped between old, non-breathable paint and finish layers.
Natural Calk Skimming Mortar is also suitable for:
- Interior or exterior surfaces of new walls
- Insulated panel systems
- Interior or exterior surfaces of old walls
Features and Benefits
Natural Calk Skimming Mortar application methods and drying times may vary depending on the type of work, required thickness, and atmospheric conditions. It is advisable to protect the application from rain for approximately 48 hours. Thanks to its natural and ecological composition, it is particularly suitable for bioarchitecture and the restoration of historical and artistic heritage.
Why shall you choose Natural Calk Skimming Mortar
- Fireproof – does not emit toxic substances when exposed to flame
- Resistant to alkaline and bacterial attack from mould and moss
- Good adhesion and abrasion resistance
- Ready to use
- Vapour diffusion resistance (μ=0.65)
- Mechanical strength: 2.50 N/mm² after 30 days
- pH: 12
Warnings
Natural Calk Skimming Mortar must not be applied when the ambient or substrate temperature is below +5°C or above +25°C.
Take care in excessively ventilated environments or those at risk of rapid drying, as well as on sun-heated walls.
It is recommended to protect the treated surface from strong thermal fluctuations.
During the drying phase, protect the product from frost and rain. In hot and windy periods, moisten the walls before applying the product.
It is essential to exclusively use Natural Calk products at every stage of the Tillica Pasta System to preserve the system’s properties and ensure its full effectiveness.
The company is responsible for the product up to the point of shipment from the Arte e Mestieri Srl warehouse/supplier premises. The application and use of the product are the responsibility of the customer or the applicator.
The company reserves the right to modify the composition while maintaining the product’s fundamental properties.
Certifications & Safety
Tillica is rigorously tested and certified by leading Italian institutions. It complies with EU directives and CEE building product standards.