Where required, our products are manufactured to meet industry or local specifications. Surface or top courses are also available depending on the Graymont site and location of the works.

Fill products we can supply are often a mix of limestone with variable percentages of soil and clay. Grade and availability will vary depending on the quarry works being carried out at the time. Please contact our sales team enquire about the composition and availability of fill materials.

Various products are available including Rip Rap/Shot Rock and Armour Rock for the protection of shorelines, steep slopes, stop banks and bridge foundations. Suitable size grades for gabion baskets or wire mattresses are available at some sites by arrangement. Please contact our sales team to enquire about availability in your region.

Currently landscaping products including pebble and some paving stones are only available in New Zealand through select landscaping supply yards. Please note that these products are not available for supply direct to public from our quarry sites. Please contact our sales team to enquire about a stockist near you.

Graymont's hydrated lime products can be used during pond transition procedures and to correct pond pH during growth cycles. Pond water that becomes acidic will place unnecessary stress on many prawn species and may result in lower growth rates.

Livestock types such as dairy cattle, swine, beef cattle, sheep, horses and poultry need calcium and the quantity of the mineral required depends on several factors such as breed, age of animal, forage type, introduced feed and the environment in which the livestock are raised.

CALCIUM AND THE DAIRY COW

A number of factors should be taken into account when selecting a suitable limestone product such as bird species, life stage, feed delivery system and the calcium content of seasonal or standard feed regimes. 

Poultry health products available in the regions we operate include:

Hydrated lime can be used to help control viruses, bacteria and parasites, as well as to absorb urine and significantly reduce odors.

Soil testing is essential to assess pH and nutrient levels prior to applying agricultural lime and to gauge whether a farm is in need of capital or ongoing maintenance inputs of agricultural lime.  Where a large increase in soil pH is required, capital application of agricultural lime is best. This is where lime inputs are far greater than the usual levels required for maintaining pH.