SagTex Industrial & Textile Antifoams

SagTex DSA silicone antifoam is a medium viscosity, highly potent antifoam emulsion that offers excellent foam control as well as excellent compatibility in a variety of surfactant concentrates and foaming systems. Compared to common silicone defoamers, it offers exceptional foam knockdown and durability, and greater compatibility in difficult surfactant systems, e.g., such as those rich in solvents and/or electrolytes.

KEY FEATURES AND TYPICAL BENEFITS

• High antifoam efficiency in surfactant-rich systems
• Rapid foam knockdown
• Excellent foam control at temperatures up to 95°C (203°F)
• Long-term foam inhibition
• Easy dispersion in all foam systems
• Easy dispersion in hard water
• Long durability in acid and alkaline conditions
• No oily spots or lumps when diluted with water
• Compatibility with a variety of surfactant concentrates

POTENTIAL APPLICATIONS

• TEXTILE PROCESSES
• Sizing
• Scouring
• Printing
• Finishing

PRODUCT USAGE GUIDELINES
SagTex DSA silicone antifoam is a medium viscosity emulsion that can be easily transferred from its original package using piston pumps. Centrifugal pumps are not recommended, as they risk destabilizing, and in extreme cases, separating the emulsion. In low viscosity formulations, preliminary stabilityand compatibility studies must be conducted prior to formulation design.

If SagTex DSA silicone antifoam is intended to be used in surfactant concentrates (primarily surfactants, water and solvent), it is recommended that the product be dosed in as received, i.e., without any predilution. Following its addition, carry out slow to moderate mixing to ensure complete and homogenous dispersion of the antifoam. Typical levels of use range between 0.1 and 0.5% depending on the formulation and the degree of foam control required. 
For process applications, we recommend prediluting SagTex DSA silicone antifoam with cold water in a ratio of 1:1 to 1:10. For high dilutions level, care must be taken to ensure stability of the dilution. Stability can be extended by adding small amounts of a suitable thickening agent, e.g., xantham gum or polyacrylates. Commercial biocides(a) containing 2-Methyl-4 Isothiazolin-3 ones and/or 2-Bromo-2-nitro-1,3-propanediol are very effective in this type of product.A suggested starting concentration is typically between 0.1 and 2%, but this will vary depending on the severity of the foaming problem.(a) Biocides must be used in accordance with FIFRA regulations and manufacturer’s guidelines.

OFFSET GRADES
TEGO MR1015

SagTex PhD silicone foam control agent is a high-performance antifoam emulsion desgined for multiple uses in the textile industry. The product typically offers very good initial foam knockdown and excellent durability at concentrations less than half that of competitive silicone antifoams. Additionally, SagTex PhD silicone antifoam gives a homogeneous dilution in water or bath formulations with no oiling or agglomerates.

Key Features & Typical Benefits

• Long durability in acidic or alkaline conditions
• Outstanding durability at low add-on levels
• Effective performance at significantly lower use levels than competitiv antifoams.
• Excellent foam control at ambient and evelated temperatures
• Rapid foam knockdown
• No oily spots or agglomerates when diluted with water
• Easily dispersed in hard water.

How to Use
SagTex PhD silicone foam control agent is a medium viscosity emulsion that can be easily transferred from its original package using piston pumps. Centrifugal pumps are not recommended, as they risk destabilizing, and in extreme cases, seperating the emulsion. In low viscosity formulations, preliminary stability and compatibility studies must be conducted prior to formulation design.

For process application, we recomment prediluting SagTex PhD silicon foam control agent with cold water (less than 18 °C) in a ration of 1:1 to 1:20. If the diluted SagTex PhD emulsion will be stored before use, then care must be taken to ensure stability of the dilution. Stability can be extended by adding small amounts of a suitable thinkening agent, such as xanthan gum or polyacrylates, to the diluting water. Commercial biocides containing 2-Methyl-4Isothiazolin-3 one and / or  2-Bromo-2-nitro-1,3-propanediol are very effective in this type of product.

A suggested starting concentration is typically between 0.1 and 2 percent, but this will vary depending on the severity of the foaming problem.

Offset Grades
Tego MR1015