Mapei Antique NHL Eco Risana Plaster – Discount & Info | 20kg

Report entered on 01/27/2026 at 8.27pm

Reviving Historic Walls: A Natural Hydraulic Lime Mortar Solution

A new pre-mixed mortar offers a breathable, salt-resistant solution for restoring and maintaining both historic and modern structures.

• This pre-mixed mortar utilizes pure natural hydraulic lime (NHL) and selected calcareous sands.
• It’s designed for both internal and external walls, particularly in buildings prone to dampness.
• The formulation is cement-free, promoting breathability and preventing efflorescence.
• A 20mm minimum thickness is recommended for optimal performance.
• The product is currently available with an expiry date of 01/28/2026.

For those wrestling with the challenges of preserving historic buildings, or simply seeking a healthier, more durable wall finish, a new mortar option is now available. This pre-mixed formulation, based on pure natural hydraulic lime (NHL) and carefully chosen calcareous sands, offers a compelling alternative to traditional cement-based mortars. The key? A macroporous structure that allows walls to breathe, preventing moisture buildup and the unsightly formation of efflorescence.

The Science Behind Breathability

The composition of this mortar is notably cement-free, a crucial factor in its performance. Cement-based mortars can trap moisture within walls, leading to a host of problems, including salt damage and structural deterioration. This NHL-based mortar, however, allows water vapor to escape, maintaining a healthier internal environment and protecting the building fabric. It resists soluble salts, further safeguarding against damage.

Application and Performance Details

Applying this mortar is straightforward. It requires between 5 and 5.4 liters of water per 20 kg bag and can be applied using either a trowel or a plastering machine. The product is classified as a Category CS II renovation mortar according to EN 998-1, indicating its suitability for repair work. Notably, it boasts very low VOC emissions, contributing to improved indoor air quality.

Looking for a durable, breathable mortar? This NHL-based formulation provides a cement-free solution ideal for historic buildings and damp environments.

Availability and Shipping

Currently, the product is listed as available, with an expiry date of 01/28/2026. Standard shipping options are available. Please note that product prices and availability are accurate as of the date and time the report was entered—01/27/2026 at 8.27pm—and are subject to change. Any price or availability information displayed at the time of purchase will apply to that transaction.