Specialty Chemicals

MACRYNAL VSM 2570/70BAC is a high solids content at application viscosity- Good drying speed. Good adhesion to metals. Very Good mechanical properties, Good gloss and Good outdoor durability. Macrynal VSM 2570 is a hydroxy functional acrylic resin cross-linkable with aliphatic polyisocyanates to formulate air drying and forced drying 2-pack high solids coating systems. In pigmented topcoats (pigment/binder = 1 : 1) a solids content of 65 % at application viscosity of 55 s (efflux time DIN EN ISO 2431, 4 mm, 23 °C) can be achieved. To ensure that optimal properties are obtained it is necessary to have complete crosslinking. For stoichiometric (equivalent) crosslinking (NCO : OH = 1 : 1) approx. 100 parts per weight Macrynal VSM 2570 (f.o.d.) require approx. 21 parts per weight Desmodur N 3390 (Covestro). in combination with amines like diethyl amino ethanol (approx. 0.2 %, based on solid resin). Potlife is thereby reduced, however. Dilution Suitable diluents are butyl acetate, methyl isobutyl ketone, 2-methoxypropyl acetate or aromatic solvents like solvent naphtha 150/180. Anhydrous solvents as well as solvents free of hydroxy functional groups should be used in the presence of isocyanates. Pigments Inert pigments and extenders are suited for pigmentation. Pigments with basic surface treatment can act as additional catalyst and shorten the potlife even more. Macrynal VSM 2570 is a hydroxy functional acrylic resin cross-linkable with aliphatic polyisocyanates to formulate air drying and forced drying 2-pack high solids coating systems. In pigmented topcoats (pigment/binder = 1 : 1) a solids content of 65 % at application viscosity of 55 s (efflux time DIN EN ISO 2431, 4 mm, 23 °C) can be achieved. To ensure that optimal properties are obtained it is necessary to have complete crosslinking. For stoichiometric (equivalent) crosslinking (NCO : OH = 1 : 1) approx. 100 parts per weight Macrynal VSM 2570 (f.o.d.) require approx. 21 parts per weight Desmodur N 3390 (Covestro). Additives To improve levelling ADDITOL VXL 4930 is recommended. ADDITOL VXL 6212 has proved to be an effective wetting agent.

SETALUX 1198 SS-70 is in combination with aliphatic isocyanates: good exterior durability, good build and gloss, high end hardness and good adhesion results on metallic base-coats. It is used as varnishes, clearcoats and solid colour systems for car repair and big rolling stock. Industrial top-coats. All systems can be used for drying at room temperature, as well as drying at elevated temperatures.

SETALUX 1199 XS-60 is in combination with aliphatic poly-isocyanates: suitable for the manufacture of air drying and forced drying twocomponent paints with high mechanical strength and good corrosion, chemical and weather resistance. It is used as varnishes, clearcoats and solid colour systems for car repair (cars, trains and tram units etc.). Industrial topcoats (big rolling stock).

SETALUX 1186 SS-60 LC is in combination with aliphatic poly-isocyanates: excellent hardness, very good exterior durability, good gloss, good build, excellent solvent and mechanical resistance and excellent mechanical properties. It is used as Industrial topcoats with excellent solvent and chemical resistance.