Adhesives & Sealants

In order to be able to process PVC plastisols and other sealants by means of coating, dipping, extrusion or other processes, the desired flow properties have to be achieved. Those rheological requirements can be achieved thanks to the high degree of fineness, the uniform grain size distribution, the nature and the amount of surface coating and the calcite crystal structure of ultra-fine SOCAL® and WINNOFIL® grades.

Ultra-fine coated SOCAL® and WINNOFIL® qualities are used in PVC, silicone, polysulphide and polyurethane sealants for the automotive, construction, aerospace, appliances and other industries.

Acrylic Sealants	In acrylic sealants, Solvay PCC helps to enhance properties such as rheology, viscosity, peel and bond strength to metal and plastics.
MS Sealants	Modified silicone (MS) sealants are based on silyl terminated polyethers and are very versatile. SOCAL® and WINNOFIL® coated ultrafine PCCs help to modify and control the pre-cure rheology of the sealant and enable good tensile properties to be obtained.
Polysulphide Sealants	Polysulphide polymer based sealants are mainly used for insulating glass, joint sealing in construction and civil engineering as well as aerospace applications - often in cases where chemical resistance is required.
Polyurethane Sealants	Polyurethane based sealants are characterized by a wide range of hardness and flexibility when fast cure is required.
PVC/ Acrylic Plastisols	Plastisols are widely used in the automotive industry for underbody coating and seam or gap filling. For the last two decades PVC plastisols have dominated but acrylic plastisols are now also being used.
Rubber Preformed Tapes	Hydrocarbon rubber-based sealants can be formulated as hot melts, solvent-release or preformed tapes using polybutenes, butyl rubber or polyisobutylene.
Silicone Sealants	Silicone or modified silicone sealants are used in glass sealing, sanitary and industrial applications.