Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Efka SI 2741 Defoamer

Efka SI2741 is a highly effective silicone-based defoamer designed to eliminate air entrapment during pigment dispersion, mixing, and pumping processes. It significantly reduces foam buildup in ink pans or reservoirs during printing, with specific formulation for solvent-based applications—proving particularly effective in nitrocellulose systems. It may also be suitable for flexo and gravure printing, with a recommended usage level of 0.1% to 1.0% of the total formulation to ensure optimal performance across various applications.

Features Of Efka SI 2741 Defoamer

  1. Air Entrapment Elimination: Effectively eliminates air entrapment during pigment dispersion, mixing, and pumping, preventing foam-related defects.

  2. Foam Buildup Reduction: Significantly reduces foam buildup in ink pans or reservoirs during printing, ensuring smooth printing processes.

  3. Solvent-Based Focus: Specifically formulated for solvent-based applications, with particular effectiveness in nitrocellulose systems.

  4. Printing Compatibility: Suitable for flexo and gravure printing, expanding its application range in printing processes.

Typical Applications Of Efka SI 2741 Defoamer

  1. Pigment Dispersion Processes: Used in pigment dispersion to eliminate air entrapment, improving dispersion quality.

  2. Solvent-Based Systems: Ideal for solvent-based applications, especially nitrocellulose systems, controlling foam during production and use.

  3. Flexo Printing: Suitable for flexo printing processes, reducing foam in ink pans/reservoirs to enhance print quality.

Specifications Of Efka SI 2741 Defoamer

Chemical Composition
Silicone-based defoamer
Flash Point
42℃
Refractive Index
1.471 - 1.481
Solvent
Methoxy propyl ester / Alkylbenzene
Appearance
Colorless, clear or slightly turbid liquid
Active Ingredient
69 - 71%
Recommended Dosage
Add 0.5 - 1.5% based on the total amount
Storage Conditions
Store in a cool and dry place. The shelf life of the product in intact packaging is 5 years from the date of production.


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