GRC Techinical Information

Technical Information


Stone by Design LTD's GRC Architectural Cast Stone meets the very highest of standards BS 1170 part 5.


Cement Efflorescence:

As with all reconstructed stone cement-based products, the temporary phenomenon known as efflorescence is likely to occur. It sparkles. It's white, sometimes with a grayish tint. It flakes off the surface and is present only on the surface. It's a crystalline deposit of salts often seen on the surface of concrete, brick, stucco or natural stone surfaces. It occurs when water leaves behind salt deposits and is present on or in the masonry surface.


Effloresence is in no way damaging to the product. This effect reduces over a period of time with natural weathering.  The specially selected additives we use within our mix design, helps prevent this natural occurance.


Manufacturing Tolerances:

Dimensional tolerances permitted by BS 1217: 1997

GRC Specification

Stone by Design LinkedIn Page
Stone by Design Instagram Page
Stone by Design Facebook Page

Stone by Design LTD

Unit 12 Brierley Industrial Park, Brierley Park Close, Sutton-In-Ashfield, Nottingham,

NG17 3JZ, United Kingdom

© Copyright. All Rights Reserved. Stone by Design LTD 2024

Stone by Design Home Page Link