Specialty Chemicals

ADDITOL XL 109 prevents surface defects in oxidatively drying paints, like icing, wrinkling, shrinkage. Enhances through-drying, levelling and hardness. For paints on oil and alkyd resins. ADDITOL XL 109 is a specific antioxidizing agent for oxidizing paint systems and inhibits or retards the crosslinking reactions initiated by air oxygen in the surface of paint films. Thus ADDITOL XL 109 acts as antiskinning agent and impairs too quick drying of the surface. The paint films remain liquid for longer times and oxygen can contact the deeper layers of the films. Through drying is enhanced and becomes uniform over the whole layer of the film.Surface defects usually due to inuniform drying, like icing, wrinkling and shrinkage can be prevented. At the same time, gloss, levelling, and film hardness are enhanced.ADDITOL XL 109 remains active in the paint on prolonged storage in closed containers. Crystallization eventually occurring on storage at lower temperatures can be dissolved by gentle heating. We recommend to jointly use ADDITOL XL 109 and ADDITOL XL 297. Both additives are supplementary in effect giving superior performance in respect of antiskinning, drying and gloss.

ROSKYDAL K 65 is a binder for highly filled, coarse and fine knifing fillers for use on metal, wood and mineral substrates. Fillers based on ROSKYDAL K 65 cure fully when applied in both thin and thick coats. They can be made harder by the addition of, for example, ROSKYDAL K 14 M or ROSKYDAL K 36. Formulation Combinations of talc, dolomite/calcite and baryteswith lowiron content have proved suitable as extenders, with talc as the main component because it improves the adhesion to the substrate.

ADDITOL VXL 6237 N improves the wetting of very difficult-to-disperse pigments, specially in aromatic free solventborne highgrade automotive series, car repair and industrial paints. Shortens the dispersing time. Prevents the reflocculation of the pigments. Improves gloss and levelling. ADDITOL VXL 6237 N permits a higher pigmentation of the mill base without increasing viscosity and shortens the dispersing time. The ready pigment pastes and paints are distinguished by a high colloidal stability and do not tend to a reflocculation of the pigments. By using ADDITOL VXL 6237 N in solvents containing acrylate systems, a stabilizing effect on the binder can be observed.

ADDITOL VXW 4973 is an easily emulsifiable defoamer with very good incorporating ability. It is suited for defoaming of coarse-disperse to fine-disperse (plastic) dispersions on the basis of PVAC, PVC, acrylates and their copolymerisates. Also low-viscous products may be defoamed with ADDITOL VXW 4973.