McGrath’s Limestone are currently supplying CongCal Calcium Carbonate to the following industries:

Alumina manufacturing  CongCal Calcium Carbonate assists in the manufacturing of alumina and alumina hydrate. We supply fine calcium carbonates and specialized granular products to assist filter process.

Automotive Industry for asbestos free brake linings

Electrical Cable Industry for low iron content cable coating

Steel Industry for the purification of iron,from iron ore in a blast furnace. The calcium carbonate is calcined in situ to give calcium oxide, which forms a slag with various impurities present, and separates from the purified iron

Welding Rods as a filler agent

Oil additives & lubricating greases

Drilling Fluids Calcium Carbonate powder is used as an acid soluble weighting and bridging agent in work over and completion fluids.

  • “Rusal Aughinish is the largest alumina refinery in Europe and the largest of the alumina facilities operated by UC RUSAL.The plant was built between 1978 and 1983 and had an initial rated capacity of 800,000 tonnes a year. The current annual capacity of the refinery is in excess of 1.8 million tonnes of alumina. Rusal Aughinish has always been to the forefront in terms of technology in the industry. Year after year it implements the most modern technologies available to ensure it remains one of the top alumina producers in the world.

    McGrath’s Limestone have supplied Rusal Aughinish for past number of years, during this time they have helped Aughinish to maximise efficiency by producing specialised granular and powder calcium carbonate products customised to their needs.

    Rusal Aughinish