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Orgal K 640 N has a low viscosity which facilitates the use in production facilities. Orgal K 640 N is an excellent choice for high quality paints as ammonia-free styrene acrylic polymer with reduced environmental effects.
CAS NUMBER: 39295-60-8
SYNONYM:
Orgal P 850 ; ORGAL PST 100 E; ORGAL PST-50A; ORGAL PST50A; ORGAL PST 100A ; Orgal PST 100 A; ORGAL PST -100A; ORGAL PST-65; ORGAL PST -65; ORGAL PST65; orgal pst 100 e; orgal pst-50a; orgal pst50a; orgal pst 100a ; orgal pst-65; Orgal Pst50a; Orgal Pst-65; Orgal Pst65; ORGAL p-850
In summary, the main characteristics of the Orgal K 640 N are as follows. Orgal K 640 N is a styrene acrylic polymer without APEO and without ammonia. Orgal K 640 N offers excellent interaction with various PU rheology organizers, Orgal K 640 N gives perfect color intensity with different dye systems, Orgal K 640 N has excellent adhesion to pigments and excellent resistance to friction, Orgal K 640 N offers very good adhesion on mineral surfaces, Orgal K 640 N has excellent water resistance, which is the product of long-term studies on innovation and the use of new technologies, is an excellent choice for high quality paints as ammonia-free styrene acrylic polymer with reduced environmental effects. Orgal K 640 N is a styrene acrylic copolymer emulsion without ammonia, APEO or formaldehyde. Suitable for formulating moisture barrier coatings, roof coatings and cement based 2 component roof coating systems. Exhibits very good adhesion, flexibility, durability, low glass transition temperature and water resistance. Shows compatibility with cement mixtures. The shelf life of Orgal K 640 N is 12 months. Orgal K 640 N forms a transparent, elastic and slightly tacky film when dried above 0 ° C. Product type Acrylic and acrylic copolymers Styrene acrylic copolymers Chemical composition Styrene acrylic copolymer liquid physical form.
Decorative construction paints have different binder technologies. These differences are shaped by performance characteristics, local market needs and environmental / health issues. The most styrenic acrylic binder polymers are the first choice in many markets due to their high pigment bond strength and high rub resistance due to their hydrophobic character. Binders produced with this technology usually contain ammonia and cause a strong odor in the product. Organic Chemistry has developed Orgal K 640 N, a new generation, ammonia-free, environmentally sensitive polymer that meets customer requirements. Orgal K 640 N is a 50% solids styrene acrylic polymer developed for interior and exterior paint applications. Orgal K 640 N has been developed to be suitable for use in the following paint formulations. Interior and exterior matt and semi-gloss paints, Textured paints, Interior / exterior acrylic coatings, Varnishes / fillers, Putties. Test the performance of Orgal K 640 N by selecting competitive products containing ammonia (A +) / free (A-) used on the market.
ORGAL K 640 N is A polymer offers excellent interaction with various polyurethane rheology regulators. Figure 2 shows the proportions of the polyurethane thickener used to equalize the final viscosity of the paint containing 30% PVC based on Orgal K 640 N and other acrylic polymers of styrene at 7000-8000 cps. Here, we see the good performance of Orgal K 640 N compared to other styrenic acrylic polymers and offering a cost advantage. New generation Orgal K 640 N exhibits excellent color intensity performance with different dye systems thanks to its innovative technology. Orgal K 640 N a. In Image 3, the comparison of the intensity of colors with different colors appears visually. Orgal K 640 N polymer used the paint gives a better intensity of color. Friction resistance performance in paints made with ORGAL K 640 N are much more than paints made with other acrylic polymers of styrene. According to the test carried out according to ISO 11998, the loss of micron on the surface of the paint determines the performance. To paint Decreased micron loss at the surface indicates better performance.
Orgal K 640 N is suitable for primers. Recommended for architectural exterior paints, textured paints, EIFS topcoats and elastomeric wall paints. Orgal K 640 N is in-line with VOC regulations, phasing out formaldehyde, ammonia and other restricted substances. Orgal K 640 N are water based polymers that can be produced from styrene and various acrylate esters such as methyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, etc. By selecting the appropriate hard (ie styrene) and soft monomers, polymers with specific attributes for a variety of end-use applications can be built. Orgal K 640 N are versatile because of the building blocks and Tg that can be created. All of the different acrylic monomers can be used to build a random copolymer. Suppliers continue to develop new monomers for use by the synthetic emulsion polymers industry. Because of the wide variety of properties that can be achieved, Orgal K 640 N find use in every market where water-based systems are used.
Resin-supported emulsions (RSE) are a unique subset of Orgal K 640 N. An emulsion is built on an alkali soluble resin that results in a vehicle with low MFFT relative to the polymers Tg. These products have much of the same flexibility and broad applicability as do Orgal K 640 N. Celanese manufactures Orgal K 640 N dispersions for use in a variety of industrial and consumer end-use applications, including: architectural decorative coatings such construction products as ceramic tile adhesives, fillers, putties and elastomeric roof coatings glass-fiber secondary binder applications, such as wall coverings. Orgal K 640 N dispersions have a limited availability. Please check with your Celanese representative for current statuses. View specific products and product grades throughout our website as well. Orgal K 640 N is a water-based dispersion emulsion of styrene acrylic copolymer. Orgal K 640 N is a surfactant stabilized colloid free emulsion that has excellent pigment loading characteristics, alkali resistance, and good binding capacity to hold texture aggregates. This product is used for producing semi gloss to matt finish emulsion paint, interior and exterior architectural structure.
Orgal K 640 N are used as binder for interior and exterior paints due to their outstanding pigment binding properties. Orgal K 640 N offer ideal gloss, film strength, durability and resistance to removal by detergents. Coatings based on styrene acrylate emulsions display excellent U.V stability and resistance to water, and alkalis. Orgal K 640 N is important to note that increasing the styrene content in styrene/acrylic copolymers may impair the water absorption and elasticity of the film. These coatings require very low maintenance as they have low tendency to pick up dirt and show good film flexibility and hardness. Orgal K 640 N are considered as a significant component of floor finishes. Majorly used in architectural/decorative paints for interior and exterior wall coatings, gloss paints for kitchen and bath, façades etc. followed by the wood and furniture industry. An aqueous coating composition comprising a mixture of: an aqueous emulsion of a first polymeric film-forming resin; and a second polymeric film-forming resin comprising an organic solution of a plasticised Orgal K 640 N emulsified in water. An aqueous coating composition as claimed in claim 1, wherein the plasticised Orgal K 640 N is present in an amount of greater than or equal to 2 wt% and less than or equal to 15 wt%, preferably greater than or equal to 3 wt% and less than or equal to 7 wt% based on the total weight of the composition.
An aqueous coating composition as claimed in claim 1 or 2, wherein the Orgal K 640 N is derivable by polymerisation of a monomer mixture comprising one or more alkyl (meth)acrylate monomers and one or more optionally substituted styrene comonomers. An aqueous coating composition as claimed in any one of the preceding claims, wherein the styrene-acrylic copolymer is derivable from a monomer mixture comprising greater than or equal to 30 wt% and less than or equal to 60 wt% of one or more alkyl (meth)acrylate comonomers and greater than or equal to 40 wt% and less than or equal to 70 wt% of one or more optionally substituted styrene comonomers. An aqueous coating composition as claimed in claim 3 or 4, wherein the one or more alkyl (meth)acrylates comprises one or more C1 to C8 alkyl (meth)acrylates. An aqueous coating composition as claimed in any one of claims 3 to 5, wherein the one or more optionally substituted styrene monomers are selected from one or more of unsubstituted styrene and C1 to C6 alkyl substituted styrene. An aqueous coating composition as claimed in any one of the preceding claims, wherein the Orgal K 640 N is essentially not cross-linked.
An aqueous coating composition as claimed in any one of the preceding claims, wherein the Orgal K 640 N has a weight averaged molecular weight of greater than or equal to 50,000 Daltons. An aqueous coating composition as claimed in any one of the preceding claims, wherein the Orgal K 640 N has a weight averaged molecular weight of less than or equal to 200,000 Daltons. An aqueous coating composition as claimed in any one of the preceding claims, wherein the ratio by weight of the first polymeric film-forming resin to the plasticised Orgal K 640 N is 2:1 to 1:4. An aqueous coating composition as claimed in any one of the preceding claims, wherein the first polymeric film-forming resin is selected from an acrylic resin, a styrene-acrylic resin, a polyvinyl acetate resin, a polyurethane resin, an alkyd resin or a polyalkyl siloxane. An aqueous coating composition as claimed in any one of the preceding claims, wherein the first polymeric film-forming resin is an acrylic resin.An aqueous coating composition as claimed in any one of the preceding claims, wherein the first polymeric film-forming resin is a copolymer. An aqueous coating composition as claimed in any one of the preceding claims, wherein the first polymeric film-forming resin is present in an amount of 1 to 20% by weight, preferably 2 to 10% by weight, based on the total weight of the composition.
An aqueous coating composition as claimed in any one of the preceding claims wherein the first polymeric film-forming resin is essentially a non-thickening polymeric resin. An aqueous coating composition as claimed in any one of the preceding claims further including a thickening agent. An aqueous coating composition as claimed in any one of the preceding claims wherein the first polymeric film-forming resin has a weight average molecular weight of greater than or equal to 225,000 Daltons and less than or equal to 600,000 Daltons. An aqueous coating composition as claimed in any one of the preceding claims wherein said coating composition further includes one or more pigments. An aqueous coating composition as claimed in any one of the preceding claims wherein said coating composition further includes one or more extenders. An aqueous coating composition as claimed in any one of the preceding claims, wherein the aqueous coating composition has a solids content of from 30 to 75 wt% based on the total weight of the composition. Orgal K 640 N is a high solids, APEO-free acrylic polymer produced with UV crosslinking technology. Orgal K 640 N is used to formulate elastomeric wall coatings having outstanding exterior durability, excellent elongation, tensile strength, crack bridging properties and dirt pick-up resistance.
The grade does not turn yellow on UV exposure and exhibits crack resistance, very low water absorption, water vapor permeability, very low surface tack. Orgal K 640 N shows adhesion over a variety of substrates. Orgal K 640 N is internally plasticized which eliminates the need for external plasticizer. Orgal K 640 N has a shelf life of 12 months. A broad range of all acrylics, styrene acrylics and vinyl acrylics for matt, semi-gloss and gloss interior and exterior paints. All new product developments are in line with the latest VOC regulations, phasing out formaldehyde, ammonia and other restricted substances. A method of preparing an aqueous coating composition as defined in any one of the preceding claims comprising contacting, preferably mixing, an aqueous emulsion of a first polymeric film-forming resin as defined in any one of the preceding claims with an organic solution of a plasticised Orgal K 640 N emulsified in water as defined in any one of the preceding claims.
IUPAC NAME:
4-amino-N-(5,6-dimethoxypyrimidin-4-yl)benzenesulfonamide;5-[(3,4,5 trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
TRADE NAME:
Benzenesulfonamide, 4-amino-N-(5,6-dimethoxy-4-pyrimidinyl)-, mixt. with 5-((3,4,5-trimethoxyphenyl)methyl)-2,4-pyrimidinediamine; Borgal; Ro 6-2153; Sulfadoxine mixture with trimethoprim; Tridoxine; Trimethoprim, sulfadoxine drug combination; Trimethoprim-sulfadoxine
OTHER NAME:
39295-60-8
Suitably, the first polymeric film-forming resin as defined hereinafter is a conventional film-forming polymer resin, such as a vinylic or acrylic resin, employed in emulsion paints. Unexpectedly, it has been found that the inclusion of a second polymeric film-forming resin comprising an organic solution of a plasticised Orgal K 640 N emulsified in water in combination with an aqueous emulsion of the first polymeric film-forming resin typically provides an aqueous coating composition which exhibits improved adhesion and cohesion compared with a comparable aqueous coating composition which only includes either the first polymeric film-forming resin or the second polymeric film-forming resin. Suitably, the aqueous coating composition of the present invention may exhibit improved UV colour fastness, improved abrasion resistance and improved water resistance (i.e. scrub resistance) compared with waterborne counterpart compositions which include either the first polymeric film-forming resin or the second polymeric film-forming resin only.
By the term "aqueous emulsion of a first polymeric film-forming resin" we mean the first film-forming resin is insoluble in water and is in the form of an aqueous colloidal dispersion. The second film-forming resin is dissolved in an organic solvent which is immiscible with water and the resultant organic solution emulsified in water. Preferably, the second film-forming resin is essentially an organic solution-in-water emulsion wherein the water is the predominant phase. Suitably, the aqueous coating compositions of the present invention are water based and so the main liquid component is water. Conventional emulsion paints usually comprise, as well as water, a minor amount of an organic solvent, such as 2,2,4-trimethyl 1,3-pentanediol monoisobutyrate (Texanol), Butyl Cellosolve, or white spirit, to aid coalescence of the dispersed film - forming polymer. Preferably, the aqueous coating composition of the present invention includes less than or equal to 10 wt%, more preferably less than or equal to 8 wt%, even more preferably less than or equal to 5 wt%, even more preferably less than or equal to 3 wt%, based on the total weight of the aqueous coating composition, of organic solvents. Preferably, all of the organic solvent present in the aqueous coating composition is derived from the organic solvent-in-water emulsion of the plasticised Orgal K 640 N.
Preferably, the aqueous composition of the present invention comprises greater than or equal to 10 wt%, more preferably greater than or equal to 15 wt%, even more preferably greater than or equal to 20 wt%, most preferably greater than or equal to 25 wt%, based on that total weight of the composition of water. Preferably, the aqueous composition of the present invention comprises less than or equal to 55 wt%, more preferably less than or equal to 45 wt%, even more preferably less than or equal to 35 wt%, most preferably less than or equal to 30 wt%, based on the total weight of the compositions, of water. Orgal K 640 N will be appreciated the organic solvent of the second film-forming resin forms the balance of the liquid phase of the aqueous coating composition of the present invention.
Preferably, the plasticised Orgal K 640 N comprises less than or equal to 5 wt%, more preferably less than or equal to 3 wt%, most preferably less than or equal to 1 wt%, based on weight averaged molecular weight of the Orgal K 640 N, of one or more cross-linking comonomers. Most preferably, the Orgal K 640 N is non-crosslinked. Preferably, the plasticised Orgal K 640 N includes essentially no functional groups which may react with complimentary functional groups present in the first polymeric film-forming resin. Suitably, the resultant film formed from the aqueous coating composition is essentially non-crosslinked. The Orgal K 640 N is essentially a linear polymer. Preferably, the plasticised Orgal K 640 N itself (i.e. the Orgal K 640 Nand plasticiser but not including the organic solvent and aqueous phase) is present in an amount of greater than or equal to 2 wt%, more preferably greater than or equal to 3 wt%, most preferably greater than or equal to 4 wt%, based on the total weight of the aqueous coating composition.
Preferably, the plasticised Orgal K 640 N itself (i.e. the Orgal K 640 N and plasticiser but not including the organic solvent and aqueous phase) is present in an amount of less than or equal to 15 wt%, more preferably less than or equal to 10 wt%, most preferably less than or equal to 7 wt%, based on the total weight of the aqueous coating composition. The second polymeric film-forming resin comprising the Orgal K 640 N and plasticiser, and other non-aqueous soluble components if present, dissolved in an organic solvent, such as C9-C11 aliphatic hydrocarbons and the resultant organic solution is emulsified in an aqueous phase. Orgal K 640 N will be appreciated by those skilled in the art that Orgal K 640 N is necessary to include the appropriate amount of such an organic solvent-in-water emulsion so that the overall content of the Orgal K 640 N itself, organic solvent and plasticiser, in the aqueous coating composition of the present invention falls within the preferred limits as defined herein. Suitably, such amounts may be determined by routine experimentation based on the known concentration of Orgal K 640 N, and organic solvent and plasticiser if present, in the Orgal K 640 N aqueous mixture.
Although the Orgal K 640 N and plasticiser is in the form of an organic solvent-in-water emulsion, the Orgal K 640 N is essentially insoluble in water. The Orgal K 640 N is essentially formed from hydrophobic monomers as detailed hereinafter which typically have a solubility in water of less than 50 g/l at 25 °C and 1 bar. Preferably, the Orgal K 640 N itself is present in an amount of greater than or equal to 10 wt% and less than or equal to 35 wt%, most preferably approximately 20 wt%, based on the total weight of the organic solution emulsified in water. Suitably, the organic solution of the Orgal K 640 N emulsified in water comprises less than or equal to 65 wt% and greater than or equal to 35 wt%, most preferably approximately 45 wt% of water. Suitably, the organic solution of the Orgal K 640 N emulsified in water comprises between 5 to 20 wt%, most preferably 15 wt% of an organic solvent. Suitably, the organic solution of the Orgal K 640 N emulsified in water comprises between 5 to 30 wt%, most preferably approximately 20 wt% of a plasticiser, based on the total weight of the organic solution emulsified in water. Suitable organic solvents are well known to those skilled in the art and include 2,2,4-trimethyl-1,3-peritanediol monoisobutyrate (Texanol), Butyl Cellosolve and white spirit.
Suitably, when the Orgal K 640 N is in the form of an aqueous mixture as defined herein, the aqueous mixture comprising 20 wt% of the Orgal K 640 N, 20% plasticiser, 45 wt% water and 15 wt% organic solvent has a Brookfield viscosity of (spindle number 1 at 60 rpm and at 25 °C) of greater than or equal to 30 cps and less than or equal to 60 cps, more preferably greater than or equal to 40 cps and less than or equal to 50 cps. Preferably, the Orgal K 640 N is formed by polymerisation of a monomer mixture comprising one or more acrylic monomers as defined herein with one or more optionally substituted styrene monomers as defined herein. Preferred acrylic monomers include acrylic acid, methacrylic acid and the esters of such acids. Preferred esters include alkyl (meth)acrylates which term refers to the corresponding acrylate or methacrylate ester which are usually formed from the corresponding acrylic or methacrylic acids by reaction with an alkanol. In other words the term "alkyl (meth)acrylate" refers to either an alkyl methacrylate or an alkyl acrylate. Other acrylic monomers include hydroxyl functional monomers such as hydroxyethyl acrylate, hydroxyethyl methacrylate and hydroxybutyl acrylate and gamine functional monomers such as dimethylaminoethyl methacrylate. Preferably, the Orgal K 640 N includes less than or equal to 10 wt%, more preferably less than or equal to 5 wt%, most preferably essentially no hydroxy and/or amine functional acrylic monomers.
Preferably, the alkyl (meth)acrylate is a (C1-C22)alkyl (meth)acrylate. Examples of C1-C22 alkyl groups of the alkyl (meth)acrylates includes methyl, ethyl, n-propyl, n-butyl, iso-butyl, tert-butyl, iso-propyl, pentyl, hexyl, cyclohexyl, 2-ethyl hexyl, heptyl, octyl, ethylhexyl, nonyl, decyl, isodecyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, behenyl, and isomers thereof. When there are sufficient number of carbon atoms, the alkyl group may be straight or branched chain. Preferably, the (C1-C22)alkyl (meth)acrylate is a (C1-C8)alkyl methacrylate, in particular methyl methacrylate, ethyl acrylate, butyl acrylate, butyl methacrylate and 2-ethylhexyl acrylate, and isomers thereof.
Preferably, the Orgal K 640 N is derived from a monomer mixture comprising two or more alkyl (meth)acrylate monomers as defined herein, in particular butyl methacrylate, especially iso-butyl methacrylate, and 2-ethylhexyl acrylate. Preferably, the Orgal K 640 N includes less than or equal to 10 wt%, based on the weight average molecular weight of the Orgal K 640 N, more preferably less than or equal to 5 wt%, most preferably essentially no acrylic acid monomers. Preferably, the Orgal K 640 N includes less than or equal to 10 wt%, based on the weight average molecular weight of the Orgal K 640 N, more preferably less than or equal to 5 wt%, most preferably essentially no methacrylic acid monomers. Highly preferred acrylic monomers consist essentially of one or more alkyl (meth)acrylate monomers as defined herein. Preferably, the Orgal K 640 N comprises greater than or equal to 30 wt%, more preferably greater than or equal to 40 wt%, most preferably greater than or equal to 45 wt%, based on the weight average molecular weight of the Orgal K 640 N, of one or more acrylic monomers as defined herein. Preferably, the Orgal K 640 N comprises less than or equal to 60 wt% more preferably less than or equal to 55 wt%, most preferably less than or equal to 50 wt%, based on the weight average molecular weight of the Orgal K 640 N, of one or more acrylic monomers as defined herein.
Preferred optionally substituted styrene monomers include unsubstituted styrene and styrene substituted with one or more C1-C6 alkyl substituents. The styrene may be substituted at the α or β position of the ethylene group or on the aromatic ring, or at a combination of these positions. Preferably, the styrene is substituted at the α or β position of the ethylene group. More preferred optionally substituted styrene monomers include unsubstituted styrene and styrene substituted with one or more C1-C6 alkyl substituents, such as methyl, ethyl, propyl, butyl, pentyl or hexyl which alkyl group when there are sufficient number of carbon atoms may be straight or branched chain. Highly preferred optionally substituted styrene monomers include unsubstituted styrene and mono substituted C1-C6 alkyl styrene, particularly mono substituted C1-C4 alkyl styrene such as butyl styrene. Preferably, the Orgal K 640 N comprises greater than or equal to 40 wt%, more preferably greater than or equal to 45 wt%, most preferably greater than or equal to 50 wt%, based on the weight average molecular weight of the Orgal K 640 N, of one or more optionally substituted styrene monomers as defined herein.
Preferably, the Orgal K 640 N comprises less than or equal to 70 wt%, more preferably less than or equal to 60 wt%, most preferably less than or equal to 55 wt%, based on the weight average molecular weight of the Orgal K 640 N, of one or more optionally substituted styrene monomers as defined herein. Preferably, the Orgal K 640 N is derived essentially from a monomer mixture comprising one or more alkyl (meth)acrylate monomers a defined herein and one or more optionally substituted styrene comonomers as defined herein. In other words, the alkyl (meth)acrylate and optionally substituted styrene monomers represent greater than 99%, preferably 100%, of the monomers present in the Orgal K 640 N. Suitable plasticisers are well known to those skilled in the art and include phthalic anhydride esters, trimellitic acid esters, hydrogenated terphenyls, chlorinated parrafins as disclosed in US 5,962,579 . Preferably, the one or more plasticisers comprises a chloroparaffin or an alkyl phthalate. The plasticiser may be present in an amount of greater than or equal to 70 wt% and less than or equal to 20 wt%, most preferably 50 wt%, based on the weight averaged molecular weight of the Orgal K 640 N.
Preferably, the Orgal K 640 N includes less than 5 wt%, more preferably less than 3 wt%, most preferably less than 2 wt%, of one or more adjuvants, such as in can preservation agents i.e. methyl iso-thiazolinone or chloro methyl isothiazolinone. Preferably, the Orgal K 640 N itself has a weight averaged molecular weight of greater than or equal to 30,000, more preferably greater than or equal to 50,000, most preferably greater than or equal to 70,000. Preferably, the Orgal K 640 N itself (i.e. in the absence of any plasticiser and further adjuvants as defined herein) has a weight averaged molecular weight of less than or equal to 400,000, more preferably less than or equal to 200,000, most preferably less than or equal to 100,000. Preferably, the Orgal K 640 N itself (i.e. in the absence of any plasticiser and further adjuvants as defined herein) has a glass transition temperature (Tg) of less than or equal to 70 °C and greater than or equal to 35 °C. Preferably, the glass transition temperature of the Orgal K 640 N and plasticiser is less than or equal to 50 °C and greater than or equal to -10 °C, preferably greater than or equal to 0 °C. Glass transition temperatures may be determined by routine experimentation using the Fox equation, employing a pre-dried (at 105 °C for 2 hours) sample of the Orgal K 640 N, with a heating rate of 4 °C min-1 over a temperature range of -60 to +150 °C and a modulation rate of ±1 °C per 55 sec. Applications: Orgal K 640 N can be used for interior and exterior paints with good washability, Orgal K 640 N is also suitable for the formulation of floor tile and building adhesives, roof coatings and sealants.
Orgal K 640 N is a versatile and easy to formulate, APEO and ammonia free, vinyl copolymer emulsion that forms clear, tack-free and tough films when dried above 12°C. Orgal K 640 N is a new generation emulsion with superior pigment binding power that provides excellent scrub resistance even at high PVC levels. Orgal K 640 N is an APEO and formaldehyde-free, acrylic polymer with excellent outdoor durability, gloss potential, can clarity and thickener response. Orgal K 640 N shows excellent scrub- and UV resistance. Orgal K 640 N exhibits good adhesion in wet and dry conditions. The dried films based on Orgal K 640 N show good early block-, yellowing- and water resistance. Orgal K 640 N is suitable for most flat to gloss coatings for interior and exterior applications, including acrylic eggshell for kitchens and bathrooms. Orgal K 640 N is also suitable for wood stains, concrete floor paints and primers. The maximum shelf life is 12 months. Orgal K 640 N is a versatile and easy to formulate, APEO and ammonia free, vinyl copolymer emulsion that forms clear, tack-free and tough films when dried above 12°C. Orgal K 640 N is a new generation emulsion with superior pigment binding power that provides excellent scrub resistance even at high PVC levels.
