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Working with Mix & Go – Guide

Mix & Go is a premixed product designed to provide all the benefits of traditional lime mortars for wider general use in the construction industry, particularly new construction and general building repair.Mix & Go eliminates inconsistency in mixes, commonly associated with site practice, allows greater flexibility and comfort to the specifier in choosing a lime […]

Making NHL Mortar – Guide

NHL Mortar preparation: can be mixed in normal Mortar mixers. Put approx two-thirds the amount of water, one third the amount of sand and all the lime followed by the remaining amount of sand and additional water until the required consistency is achieved. Mortar should be mixed for at least 10 minutes. Greater workability and […]

Cladding – Guide

St. Astier NHL products for use with masonry cladding. For the purpose of this document Masonry Cladding means thin sections of masonry each one fixed back to a frame or substructure or to themselves. The masonry will generally be between 1 1/2″ to 2 3/4″ thick. Its main function will be decorative. Many cladding designs […]

Ashlar Joints – Guide

Traditional ashlar jointing and bedding mortars were made with lime and crushed chalk, usually with a small amount of crushed stone or sand added for bulk. This was mixed on a marble slab with just enough linseed oil to grease the tools, it was made up into a consistency similar to stiff glazing putty, wrapped […]

NHL Mortars: Consumption Chart – Guide

NHL products are bought by weight but mixed by volume. Their low density in comparison with other binders means that with the same weight one would produce up to three times the amount of mortar. Binder consumption for 1cu. yard of mortar: volume /weight comparison     Average Volumetric Mixes – lbs/cu.yd Binder Density (lbs/cu.yd […]


If you have a “chink” in the armor of a building it is usually due to different or moving materials coming together and the need for a filler that accommodates the differential in movement between the two masses. Plastics may work but many owners wanting to go green don’t want that between their logs in […]

Biography of Andrew L deGruchy

A Quotable Quote: Why you should send your kids to Trade School… “My mother has always been unhappy with what I do, She would much rather I do something nicer, like be a bricklayer.” … Mick Jagger REDBOOK MAY 1992 Click here to learn more about the specific Trade School that Andy deGruchy lived at […]

Old Stone Basement Foundation FAQ

This is part of a series of blog entries that will feature mason, Randy Ruth. Randy was the former lab technician at and received lots of questions on masonry and the use of our materials. We post some of these questions on our blog.  Look for “FAQ” in other titles of our blog. Q: […]

Let’s Talk Sand

Our Ecologic™ Mortar uses a sharp well graded proprietary blend, so it’s not just ANY sand! The dictionary definition of Sand: weathered particles of rocks, usually high in silica, smaller than gravels and larger than silts, typically between about 0.06 mm to 5 mm. The particles are hard and will not crumble. Sand is used […]