เคมีภัณฑ์ชนิดพิเศษ

High pigment loading without increase in viscosity. Reduction of dispersing time. Enhances gloss and levelling. For air drying and stoving solvent-borne paints and particularly for water dilutable paint systems. ADDITOL XL 203 prevents the floating of titanium dioxide in conjunction with organic or inorganic coloured pigments. It can be employed in solvent-borne and water dilutable air drying and stoving paint systems. ADDITOL XL 203 enhances gloss and levelling of paint films. Pigment loading of paints and pigment pastes can be increased without rises in viscosity. Dispersion time is reduced. The recommended level may range from 0.1 to 1.5 % on total paint. Level on pigments: inorganic pigments: 0.5 - 2.5 %, organic pigments: 1.5 - 5 %. The figures given here may serve as a guide for extensive trials to find the optimum in dosage and effect and to save costs. Since ADDITOL XL 203 is a cationic product it should not be used in conjunction with certain anionic products. Phase seperation occurs and ADDITOL XL 203 becomes ineffective at once. The compatibility should be determined by experiments. ADDITOL XL 203 can be combined with cationic and non-ionic products.

ADDITOL XL 6568 is used for the formulation of stripping enamels, release agents and temporary corrosion protection. ADDITOL XL 6568 is added to stripping enamels as anti adhesion promotor. Coatings of this nature give temporary protection against mechanical attack and corrosion to various substrates. Such coatings can easily be pealed off later. ADDITOL XL 6568 can be used in solvent based as well as in aqueous systems. Suitable binders for solvent based systems are the Hostaflex grades CM 150 and CM 133 as well as the Mowital grades B30HH and B60H. To formulate aqueous systems, acrylic dispersions like Ucecryl B 3022 are recommended. While solvent based release coatings can easily be removed from metallic substrates aqueous systems based on styrene acrylate dispersions can also be removed from glass, pottery, wood and plastics. For formulating systems with high film strength aqueous systems are more suitable than solvent based systems.

Prevents the sedimentation of pigments in paints. Improves the pigment-wetting during dispersion. In many paint systems the floating of pigments in pigment-mixtures is prevented. The tendency to flow off is reduced and the covering of edges is improved. Suggested for all solvent based and solvent-free paint systems. ADDITOL XL 270 is usually compatible with solvent based and solvent-free binders. It prevents the sedimentation of pigments in paints. The rheological character of paints is improved. The tendency to flow on vertical surfaces is reduced. The edges of substrates are better covered in case of dipping application. The drying of oxidatively drying systems is not influenced by ADDITOL XL 270, if the appropriated dose is used. Also the efficiency of siccatives in paints, stored for a long time, is not reduced using ADDITOL XL 270. Considering anti-corrosive paints, there is no corrosion-resistance loss by using ADDITOL XL 270. It is recommended to be used for the activating of organophile bentonites and it improves the effect of pyrogene silica.

ADDITOL XL 180 enhances intercoat adhesion of stoving paints and fast drying air-drying paints on electrodeposition primers, white electrodeposition paints and primers. ADDITOL XL 180 is dilutable with aliphatic and aromatic hydrocarbons,ketones, esters and alcohols, and is in its form of delivery not dilutable with water. ADDITOL XL 180 improves intercoat adhesion between finish and primer. ADDITOL XL 180 has excellent compatibility characteristics with many binder systems and thus affords universal use. In water dilutable systems ADDITOL XL 180 is best used neutralized with amines, preferably triethylamine. Effects of ADDITOL XL 180 are increased adhesion and enhanced flexibility of stoving alkyd or acrylic resin paints to primers and white paints applied b electrodeposition. In single coats on iron and aluminium, ADDITOL XL 180 does not seem to be efficience. ADDITOL XL 180 as well as its salts can be combined with non-ionic and anionic substances with interfacial activity. Compatibility with cationic substances, however, should be checked individually to prevent mutual flocculation and reduction of gloss. Experience so far has neither shown impaired weathering resistance nor reduced storage stability in connection with the use of ADDITOL XL 180.