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SILICONE ANTIFOAM EMULSIONS – C-21030, C-2005, C-2010, C-2020, & C-2030
The above listed C-2000 series of antifoams are food-grade, water-based, silicone emulsions (as polydimethylsiloxane) designed to control foam in most aqueous systems. Widely used in many non-food-grade industrial applications, these antifoams find utility beyond, and are not limited to, the food industry. The functional properties developed especially for our C-2000 products to eliminate and prevent excessive foam include: quick dispersibility, slight insolubility, relative stability, and a high degree of spreadability in the foaming system. The active ingredient, polydimethylsiloxane, is an inert polymer with the following structure:
where the value for n is approximately 180 repeating units
These particular C-2000 antifoam products utilize only food-grade, nonionic emulsifiers; and contain only ingredients that are recognized by qualified experts as safe in food products according to the Code of Federal Regulations, Title 21, Part 173.340. They may therefore be used as direct food additives in most foods at levels anywhere from 33 to 333 parts per million (mg/L) depending upon the product. As processing aids, these C-2000 products are considered ‘secondary direct food additives’ and impart no flavor, odor, or functional attributes to the food. Please consult the Code of Federal Regulations for further clarification on antifoam usage in your particular foodstuff.
SILICONE ANTIFOAM COMPOUNDS – C-2100
Like the other food-grade C-2000 antifoams, C-2100 is based on polydimethylsiloxane; however, unlike the other C-2000 antifoams, C-2100 is not a water-based emulsion: it’s a 100% active, water-free, thick dispersion of silicon dioxide within a body of silicone fluid. The C-2100 series of antifoams are designed to control foam in many types of primarily non-aqueous systems, although some utility can be found in certain aqueous applications. Widely used in many non-food-grade industrial applications, C-2100 also finds utility beyond, and is not limited to, the food industry.
NON-SILICONE ANTIFOAM EMULSIONS – C-2220, C-2286, C-20FG2
C-2220 is a water-based, non-silicone, food-grade emulsion designed to control foam in aqueous systems where the presence of silicone is not desired or cannot be tolerated. Widely used in many non-food-grade industrial applications, (for example, to suppress foam formation in o/w emulsions) C-2220 finds utility beyond, and is not limited to, the food industry.
C-2220, an oil-in-water emulsion of a fine grade of white mineral oil conforming to 21 CFR 172.878, utilizes only food-grade, nonionic emulsifiers and contains only ingredients that are recognized by qualified experts as safe in food products according to the Code of Federal Regulations, Title 21, Part 173.340. It may therefore be safely used as a direct food additive in an amount not to exceed that reasonably required to inhibit foaming in specific applications such as wash water for sliced potatoes, and for the processing of beet sugar and yeast. As a food processing aid, C-2220 is considered a ‘secondary direct food additive’ and imparts no flavor, odor, or functional attributes to the food. C-2220 is also widely used as an indirect food additive for the manufacture of articles or components of articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food; and is approved for the manufacture of paper and paperboard per 21 CFR 176.170, 176.180, and 176.210. Consult the Code of Federal Regulations for further clarification on antifoam usage in your particular food-grade application.
C-2286 is somewhat similar in chemical composition to C-2220, but has a thinner viscosity. Like C-2220, C-2286 finds applicability in food-grade applications, but it, too, also possesses attributes which make it suitable for industrial applications intolerant to the presence of silicone. For example, C-2286 is effectively utilized within the printed circuit board and electronics industries as an antifoam/defoamer for rinsing, waste, and developing operations.
C-20FG2 is a water-based, non-silicone, food-grade emulsion designed to control foam in aqueous food-canning processes where the presence of silicone is not desired or cannot be tolerated. C-20FG2 disperses readily when added to an aqueous system, yet possesses slight insolubility to control excessive foam. When used in sufficient but not excessive quantities, C-20FG2 should in no way alter the taste of food products.
INDUSTRIAL SILICONE ANTIFOAM EMULSIONS – C-2222, C-22223, & C-2278
C-2222 & C-22223 are highly complex, water-based, industrial-grade antifoam emulsions containing organic non-silicone components for good foam knockdown and low levels of silicone (as polydimethylsiloxane) for good foam control. These products are primarily used as wastewater and effluent defoamers, but find applicability in a wide range of industrial applications, including high-temperature operations.
C-2278 silicone antifoam is a water-based, silicone and polypropylene glycol emulsion designed to control foam in aqueous systems, including fermentations and wastewater. C-2278 contains 19% actives and is a highly efficacious alternative to strictly silicone antifoams. In addition to multiple industrial applications, C-2278 is approved as a direct food additive per 21 CFR 173.340 – provided its use is limited to processing beet sugar and yeast. C-2278 can also be used as an indirect food additive for the manufacture of articles or components of articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food; and is approved for the manufacture of paper and paperboard per 21 CFR 176.170, 176.180, and 176.210.
NON-SILICONE INDUSTRIAL DEFOAMERS – C-2245
C-2245 is a water-based, biodegradable, non-silicone defoaming blend developed to prevent excessive foaming in C.I.P. cleaning systems and auto-dishwashing applications. It is alkali-soluble and stable, performs in high temperature systems and high protein soil conditions such as whey evaporators, and possesses mild detergency. C-2245 is effective within the food industry where direct and indirect food contact is not expected to occur.
To control foam, C-2245 defoamer is normally added directly to the foaming product or process. A good starting point is 0.2 to 0.5% by weight in an aqueous system. For example, a standard recommendation is 3 oz. of C-2245 for each 10 gallons of liquid caustic soda. C-2245 will cloud when exposed to slightly elevated temperatures. This reversible phenomenon is normal, and is the mechanism by which C-2245 derives its efficacy within high-temperature cleaning systems. C-2245 performs best in alkaline processes operating at temperatures above 90° F (32 °C). As with any antifoam or defoamer, thorough testing should always be conducted to determine the suitability and compatibility of the antifoam with the foaming system and processing equipment.
SPECIALTY INDUSTRIAL ANTIFOAMS – C-2290
C-2290 is a water-based, industrial-grade antifoam utilizing low levels of chemically modified silicones in conjunction with non-silicone defoaming polymers to deliver outstanding foam-combative performance. The functional properties developed especially for C-2290 to eliminate and prevent excessive foam include very quick dispersibility and a high degree of spreadability in the foaming system. C-2290 possesses excellent stability and long-lasting efficacy in metalworking fluids, does not negatively impact the clarity of synthetic fluids when incorporated properly, and finds utility in cleaning products subjected to foam causing application methods. C-2290 contains a very small amount of special silicones possessing enhanced rinseability and water dispersibility characteristics; thus, in some instances, it may be possible to utilize C-2290 in applications traditionally sensitive to the presence of silicone. The total level of both silicone and non-silicone actives in C-2290 is about 15%. C-2290 is also a suitable antifoam for the manufacture of paper and paperboard per 21 CFR 176.170, 176.180, and 176.210.
EXTREME SITUATIONS INDUSTRIAL ANTIFOAMS – C-2276, C-2297, C-2020, C-20SD11,
C-2396, C-20EP1
These antifoams are formulated for unusual and unique foam control situations.
C-2276 is a proprietary non-aqueous silicone defoamer liquid which finds extensive use in industrial applications.
C-2297 is a 50% silicone antifoam emulsion, which finds use as a secondary food additive as well as industrial applications.
C-2020 is a powder, silicone absorbed antifoam.
C-20SD11 is a solid moldable silicone antifoam.
C-20EP1 is a copolymer non-aqueous defoamer liquid.