Borchi Coll 10

Colloid dispersions of silica particles

Borchers

抗阻滞剂 Antiblocking agent 丙烯酸/丙烯酸盐树脂 Acrylic/Acrylate Resins 醇酸树脂 Alkyd Resins 聚酯 Polyester 硅酸盐 Silicate 涂层 >> 水生 Coatings >> Waterborne 木器 &家具涂层 Wood & Furniture Coatings Borchi® Coll 10 10 Anti-Blocking additive for all water-borne paints and coatings Borchi® Coll 30 Borchi® Coll 20 Borchi® Coll 20 M Borchi® Coll 10 Description The Borchi® Coll additives are colloid dispersions of silica particles of variable particle size according to type. Aqueous, low-viscosity, non-settling dispersions. Properties With its reactive groups, Borchi® Coll affects initial and through drying of synthetic resin dispersions, silicate paints and water-borne alkyd resin systems which dry by oxidation. Borchicoll also improves adhesion to wood, plastic and metal surfaces. Borchi® Coll reduces the tendency towards under-rusting as a result of improved film quality and more uniform distribution of barrier properties on the substrate. The various improvements attainable with Borchi® Coll are as follows: -brushability -increased hiding power -shorter drying time-increased film hardness -increased whiteness-blocking resistance -increased resistance to water and alcohol -ability to withstand high temperatures -adhesion to plastic, non-ferrous metals and wood -corrosion resistance Depending on the water-borne binder used, a stable degree of gloss across the entire spectrum from matt to gloss is attainable with Borchi® Coll. To achieve the described effects, Borchi® Coll must always be incorporated during the dispersion process. Applications Silk-finish and gloss emulsion paints (based on copolymers, acrylic esters) Borchi® Coll 10 has proved particularly suitable for silk-finish and gloss dispersions based on copolymers or acrylic esters. At an addition rate of approximately 3 %, it improves blocking resistance, through-drying and final hardness. lt has only a negligible effect on gloss. lf added to excess, reduction in gloss may occur, depending on the system. Silk-finish and gloss paints (based on waterborne isocyanate-modified alkyd resins) Borchi® Coll 20 M and Borchi® Coll 30 are particularly suitable for use in waterborne isocyanate-modified alkyd resins. They are highly compatible with these systems and accelerate drying of the films. They improve film strength and final film hardness. At addition rates of up to 2 %, hiding power is increased without any adverse effect on gloss. Interior and exterior paints based on polymer dispersions (copolymers of vinyl acetate, ethylene and vinyl chloride) Improvements in interior and exterior paints based on polymer dispersions, e.g. copolymers of vinyl acetate, ethylene and vinyl chloride, have been achieved by addition of Borchi® Coll 20. An addition rate of approximately 5 % increases film hardness and makes the films dirt-repellent. Water-borne paints (based on modified linseed oil alkyds) which dry physically or by oxidation Water-borne paints which dry physically or by oxidation exhibit a known tendency towards surface tack. Surface tack can be considerably reduced through addition of Borchi® Coll 20 M by ensuring even and fine dispersion into the film. Mixing and addition rate Borchi® Coll can be incorporated during pigment dispersion or subsequently into finished systems. We recommend that Borchi® Coll is added to the milling stock and left to mature for 24 hours. Addition rate: 1 - 3 % relative to total paint formulation, depending on system, area of application and desired effect. Anti-Blocking anionic additive for all water-borne paints and coatings . Aqueous, low-viscosity, non-settling dispersions. Affects initial and through drying of synthetic resin dispersions, silicate paints and water-borne alkyd resin systems which dry by oxidation. Improves adhesion to wood, plastic and metal surfaces. Reduces the tendency towards under-rusting as a result of improved film quality and more uniform distribution of barrier properties on the substrate. Brushability. Increased hiding power. Shorter drying time-increased film hardness. Increased resistance to water and alcohol. Ability to withstand high temperatures. Depending on the water-borne binder used, a stable degree of gloss across the entire spectrum from matt to gloss is attainable. Has proved particularly suitable for silk-finish and gloss dispersions based on copolymers or acrylic esters. At an addition rate of approximately 3 %, improves blocking resistance, through-drying and final hardness. Has only a negligible effect on gloss. lf added to excess, reduction in gloss may occur, depending on the system. Should be incorporated during pigment dispersion or subsequently into finished systems. Added to the milling stock and left to mature for 24 hours. Recommended usage level:1 - 3 % relative to total paint formulation, depending on system, area of application and desired effect.