Specialty Minerals' facility in Canaan, Connecticut, located in the northwest corner of that state, has been producing finely ground industrial mineral products since 1960. The Canaan plant has been in operation since 1850, producing ground dolomitic limestones for the whitewash used on the New England houses and churches, for local iron foundries and for agriculture. Dolomite ore from a nearby quarry is processed into ground and screened dolomite products. These products are packaged for shipment throughout North America. Products are shipped in bulk truck and bulk rail, 50-pound bags, and semi-bulk bags. With the formation of Minerals Technologies in 1992, the Canaan plant became part of the Performance Minerals group of Specialty Minerals Inc. (SMI).
The Specialty Minerals dolomite deposit at Canaan is a true dolomite—calcium magnesium carbonate, not just a magnesium-containing dolomitic limestone. The ground and screened dolomite products are now used for filling and extending cast polymers (cultured marble), asphalt roofing shingles, vinyl tile flooring, joint compound, masonry products, pool plastering, caulks and sealants.
Canaan Dolomite Products
Coarse ground grades—CCA, FCA, and MS-4—provide a source of extremely white aggregate for manufacturing white concrete block, white split face block and pre-cast shapes. Bright white Marblemix® dolomite pool sands are ideally suited for plastering swimming pools. For joint compound, sealants, putties, caulks, and other building products the Dolocron® dolomite fillers provide high brightness and low oil absorption. The DF series of dolomites offer a wide variety of performance options for vinyl floor tile, stucco and grout manufacturers.
As with the other SMI Performance Minerals facilities, the Canaan plant is ISO 9001 certified, with stringent quality control and continuous improvement programs to ensure the needs of its customers are fully met.
- Specialty applications for SMI Performance Minerals products
- SMI minerals for building products
- SMI products for caulks and sealants
- SMI products for paint and coatings
- SMI products for unsaturated polyesters
- Other SMI Performance Minerals plants
- About Specialty Minerals Inc.
- Quality and ISO at Specialty Minerals
- What is Dolomite/Dolomitic Limestone?