Limestone produced by Longcliffe brings massive economic and environmental benefits to the whole of the UK. Major building product related uses of our limestone granules and powders, precipitated calcium carbonates and other products include:
The role of calcium carbonate in adhesives and sealants is to reduce cost, improve processing characteristics and increase the durability of the finished product.
Longcliffe’s ground limestone fillers are used in areas where high loadings are essential such as ceramic tile adhesives (CTA’s), grouts and joint fillers – sometimes comprising up to 80% of the formulation. Special care is given to control large particles to provide smooth finishes.
Our precipitated calcium carbonates (PCC’s) are also used as fillers in adhesives and sealants. However, because of their much smaller sizes they are mainly used as the primary rheological additive and reinforcement in high-performance products.
Asphalt is a mixture of bitumen with sand, crushed rock, or similar material, and aggregate fillers which is used like cement in the construction and repair of roads, car parks, pavements and driveways.
Fine ground limestones/calcium carbonates (GCCs) from Longcliffe are used as a part of the solid aggregate filler mix in asphalts. Adding a fine particle-sized material to the coarser aggregate increases the density and stability of the asphalt system by eliminating air voids in the aggregate.
Longcliffe also supplies limestone fillers for use in bituminous roofing membranes, roofing felts, as well as mastic asphalt and polymer-modified mastic asphalt systems. Mastic asphalt has a long and successful history as a waterproofing medium for flat roofs, water tanks, basements and foundations, as well as a surfacing material for floors, pavements, car parks and bridge decks.
The surface coatings industry is made up of a number of different sectors ranging from decorative paints, industrial coatings, road-marking paints and automotive finishes through to more specialist areas, such as; protective coatings, textured finishes, plasters, powder coatings, and wood finishes.
All these applications have their own particular requirements and furthermore, nearly all are embracing more environmentally friendly technology to reduce solvent usage and emissions. As a result both water-based and high solids systems have become increasingly important.
Important markets for Longcliffe limestone products include plasters and textured finishes.