RA&Sons Logo
PRODUCT

Rastaw

rastaw new

Rastaw

RASTAW is a cement-free, premixed powder mortar formulated with natural hydraulic lime, graded sand, microfibers, and specific additives. Designed for both restoration and new construction, it is ideal for repairing and protecting historic masonry, stone structures, and facades, ensuring long-term durability while maintaining breathability.

When mixed with water, RASTAW develops a thixotropic consistency, making it highly workable and suitable for both vertical and horizontal applications. Its transpirant (breathable) properties help regulate moisture, making it an excellent choice for both interior and exterior use.
Available in Rastaw Stone Colour, Rastaw Natural Colour and other colours upon request , it provides aesthetic versatility while seamlessly integrating with historical and new architectural elements.

 

Technical Data

The data and statements in this information sheet refer to laboratory tests in our possession, conducted in standard environmental conditions. Practical applications on site according to these conditions of use may result in different data readings. Due to the wide variety of possible uses and applications, the end-users should independently determine the suitability of the material for their specific purpose prior to use. R.A. & SONS Manufacturing Ltd. reserves the right to make technical modifications of any kind without prior notice.

Other Products

RA&Sons Logo

Subscribe

Sign up for our Newsletter
© Copyright RA & Sons Ltd 2026