Construction Floor CoveringsAttractive and Durable Flooring Products Using Calcium Carbonates

No matter the use, there is a demand for attractive and functional floor covering. Ground calcium carbonates (GCCs) and ground dolomites (calcium magnesium carbonates) can assist in the production of such sought-after flooring, such as resilient vinyl composite tile (VCT), resilient sheet or roll flooring, vinyl cove molding and latex-based carpet backing.

Calcium Carbonate in Vinyl Composite Tile

One of the most popular uses for ground calcium carbonates is in the production of vinyl composite tile (VCT). GCC is the main filler, decreasing the cost of manufacture through its use as an extender for the polyvinyl chloride (PVC) resin. GCC usually makes up 75 to 80% of VCT. Optimal packing density, reduced demand for resin and good colour (meaning less expensive pigment is needed) makes GCC an attractive alternative.

Calcium Carbonate in Vinyl Sheet Flooring

The no-wax variety of vinyl sheet flooring has become especially sought-after, and comprises lower levels of GCC filler than VCT. The backing layer of the sheet usually consists of 50% GCC, typically a finer grade to give better malleability. The top layer has very little to no filler. The GCC filler is usually a 200 or 325 mesh product.

Calcium Carbonate in Vinyl Cove Molding

GCC filler is also used in flexible cove molding; utilising a fine GCC offers the flexibility and strength called for in this extruded vinyl building component.

Calcium Carbonate in Carpet Backing

Carpet backing with a latex base is used to hold the fibres in place on woven carpet. It also offers a great mix of resiliency and stiffness. The backing on carpet is typically constructed using a styrene-butadiene-based thermosetting latex emulsion, with a ground calcium carbonate used as a filler and whitener. GCC allows the manufacture of the carpet backing to be more cost-effective by extending the latex. The most important feature to look for when picking a filler is particle size distribution. The GCC's brightness requirements usually vary by the style of the carpet, its quality, and the preference of the manufacturer.