Products

AEROSIL® R 106 is a hydrophobic fumed silica surface treated with D4 (octamethylcyclotetrasiloxane).

AEROSIL® R 711 is a fumed silica aftertreated with a methacrylsilane.

ACRYSOL™ DR-73 Rheology Modifier is a synthetic liquid thickener that provides a cost-effective, high-performance alternative to cellulosic thickeners in interior flat latex paints. ACRYSOL™ DR-73 offers application and feel properties similar to medium-grade cellulosic thickeners and hydrophobically modified HEC thickeners, while increasing high shear viscosity for enhanced film build, brush drag, and hiding power. It also delivers outstanding spatter resistance. ACRYSOL™ DR-73 is easy to handle and incorporate into paint formulations, and it is designed to resist microbial contamination.

ACRYSOL™ RM-2020 NPR is a nonionic, solvent-free, hydrophobically modified ethylene oxide urethane (HEUR) rheology modifier that offers excellent flow and leveling, film formation, gloss development and high shear (film build) viscosity in interior and exterior latex paints.

CRAYVALLAC® SF is a proprietary amide-modified hydrogenated castor oil rheology modifier with an enhanced tolerance to temperature and solvent strength suitable for a variety of different solvent-based systems e.g. aromatic hydrocarbons and aromatic hydrocarbon/alcohol blends. Compared to other hydrogenated castor oil based rheology modifiers, CRAYVALLAC® SF is more tolerant to strong solvents and high processing temperatures due to the presence of its unique performance enhancing amide. The activation process constitutes the conversion of the CRAYVALLAC® SF particles to an interacting network of fibre-like particles. It is this network that gives rise to the final coating’s shear thinning rheology. This shear thinning characteristic provides a very high viscosity under the low shear rates associated with sedimentation, and a low viscosity at the much higher application shear rates. The net result is excellent control of sedimentation combined with ease of application.

ACRYSOL™ TT-935 Rheology Modifier is an alkali-soluble, anionic associative thickener, designed to give medium-shear-rate viscosity in interior/exterior flat latex paints. ACRYSOL™ TT-935 Rheology Modifier can be used as either a primary or co-thickener in water-based coatings. It offers excellent resistance to roller spattering with better film build and leveling than conventional thickeners. Paints formulated with ACRYSOL™ TT-935 Rheology Modifier as a sole thickener exhibit improved flow and leveling compared with medium- to high-molecular-weight cellulosic thickeners. The rheology can be modified to further improve flow and leveling by addition of low levels of surfactant or glycol-ether-type co-solvents to reduce the low-shear viscosity. Addition of some pre-dispersed colorant may also have this effect. ACRYSOL™ TT-935 Rheology Modifier is recommended for interior paints requiring improved flow and leveling and lower raw material cost compared to cellulosic thickeners. Where superior water resistance is required, we recommend ACRYSOL™ SCT-275 Rheology Modifier. ACRYSOL™ TT-935 can be used in exterior paints, but formulators should exercise caution to minimize potential blistering due to the anionic nature of this product. Delivered as a low-viscosity liquid, it is very easy to handle and incorporate into paint. It is resistant to microbiological degradation, thereby avoiding viscosity loss in paint, a common problem for manufacturers.

Castorwax® is a wax like compound obtained by the controlled hydrogenation of pure castor oil. The principle constituent is glycerol tri-(12-hydroxystearate), also known as opalwax. Castorwax® is a hard, brittle, high melting point wax that is insoluble in most organic solvents but is highly compatible with most resins and waxes.

ACRYSOL™ SCT-275 Rheology Modifier is an efficient nonionic polyethylene oxide(HEUR) associative rheology modifier which can impart excellent rheological properties including flow and leveling, uniform film formation and film build, to latex based coatings. ACRYSOL™ SCT-275 Rheology Modifier is recommended for use in flat to semigloss paints and primers for both exterior paints and premium interior paints.It is especially suited to replace or be blended with conventional cellulosic thickeners where improved flow and leveling, increased hiding, and spatter resistance is desired. ACRYSOL™ SCT-275 Rheology Modifier is particularly suited for low solids, vinyl acrylic formulations where it yields excellent flow/sag balance, color acceptance, and syneresis resistance. ACRYSOL™ SCT-275 Rheology Modifier is supplied as a low viscosity liquid that is easy to handle and incorporate in the paint making process.

ACRYSOL™ RM-725 Rheology Modifier is a solvent-free, hydrophobically modified ethylene oxide urethane (HEUR) based on proprietary technology for an excellent balance of properties. ACRYSOL™ RM-725 Rheology Modifier is designed as a universal, efficient mid shear viscosity builder with all binder types that are used for interior wall paints as well as exterior systems for wood, trim stains and masonry. This KU-building associative thickener offers formulators an excellent balance of sag resistance and leveling, including PVA and VAE binder based paints. ACRYSOL™ RM-725 Rheology Modifier also contributes significant to high shear viscosity, allowing the reduction of ICI builder use level in the paint.

CRAYVALLAC® SLT is a high performance micronised amide wax rheology modifier designed for activation-free manufacture of moisture curing methoxysilane based systems. Simple stirring is only necessary to get full efficiency. CRAYVALLAC® SLT is also suitable for the activation-free manufacture of moisture curing methoxysilane based adhesives. CRAYVALLAC® SLT is specially designed for the low temperature manufacture of one-component methoxysilane sealants where processing temperatures typically lie within the range 30 - 80°C. CRAYVALLAC® SLT particles are converted to an interacting network of crystalline fibres. It is this network that gives rise to the shear thinning rheology. This shear thinning characteristic provides for a low viscosity at the shear rates associated with application by extrusion, and a veryhigh viscosity under the low shear rates experienced after application. The net result is ease of application followed by excellent sag and slump resistance.

CRAYVALLAC® LA-250 is a modified urea dissolved in DMSO and is a pourable liquid rheology modifier for post addition to low polarity solvent based coatings. CRAYVALLAC® LA-250 should be added to the coating as a slow stream under low to medium shear conditions to ensure sufficient dispersion. Although efficient stirring is required to ensure homogeneity, elevated temperatures are not required for activation and the use of excessive shear should be avoided.

AEROSIL® R 974 Silicas is a hydrophobic fumed silica aftertreated with DDS (Dimethyldichlorosilane) based on a hydrophilic fumed silica with a specific surface area of 200 m²/g.

CRAYVALLAC® PA3 BA 20 is a HAPs-free pre-activated amide wax supplied in a mixture of butyl acetate and alcohol. It is a rheology modifier in paste form with high efficiency (optimum sag resistance and viscosity).CRAYVALLAC® PA3 BA 20 is supplied in the form of crystalline fibres. In a coating system, these fibres form an interacting network. This network gives rise to the shear thinning rheology of the final coating. This shear thinning characteristic provides a very high viscosity under the low shear rates associated with sedimentation, and a low viscosity at the much higher application shear rates. The net result is excellent control of sedimentation combined with ease of application.

SIPERNAT® represents a specific product range of precipitated silica, aluminium and calcium silicates. SIPERNAT® 880 is a calcium silicate which is used as a flow and anticaking agent in many applications.

CRAYVALLAC® SUPER is a high performance, micronised amide wax rheology modifier suitable for a wide range of solvent-based, high-solids and solvent-free applications. CRAYVALLAC® SUPER overcomes those difficulties which exist with hydrogenated castor oil based rheology modifiers e.g. seeding and false-body. Consequently, coatings formulated using CRAYVALLAC® SUPER exhibit an enhanced performance such as controlled flow behavior, ease of application and excellent sag resistanceIts smooth viscosity recovery will help to achieve high film thickness without compromising a good levelling.