SD-670

Product Details

CasNo： 9006-65-9

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Basic Information

• Product Name: SD-670 Defoamer
• Packaging Specification: 200 kg/blue iron drum
• Main Ingredient: Organic silicon (polysiloxane compounds), processed through a special technique to possess self-dispersing properties, enabling uniform distribution in systems without additional dispersing agents.

2. Product Characteristics

1. Self-Dispersibility & Easy Application:It can be directly added to the system for rapid dispersion without high-shear stirring or solvent dilution, significantly simplifying the operation process. Compared with traditional defoamers that require pre-dilution, it reduces the time consumed in production links, making it particularly suitable for automated production lines or emergency defoaming scenarios.

2. Broad-Spectrum Application & Efficient Defoaming:

   • Printing Inks: Eliminates foam generated by high-speed stirring or air entrainment during ink production and printing, avoiding defects such as blurred halftone dots and uneven ink layers.
   • Adhesives: Inhibits foam during emulsion polymerization or coating, ensuring the transparency and bonding strength of the colloid.
   • Water-Miscible Cooling Lubricants: Controls foam in metalworking fluids, maintaining cooling and lubricating effects and extending tool life.
   • Paper Coatings/Building Materials: Prevents residual air bubbles during coating application or cement mixing, improving surface flatness.

3. Excellent Chemical & Physical Stability:

   • Wide temperature resistance range (-10℃~150℃), suitable for high-temperature ink drying or building material curing scenarios.
   • Acid, alkali, and electrolyte resistance (pH 2~12), maintaining stability in water-based adhesives or systems containing mineral fillers.
   • Strong compatibility with resins, pigments, surfactants, and other components, without affecting the curing speed or mechanical properties of the system.

4. Low Dosage & Cost-Effectiveness:The recommended dosage is only 0.05%~0.3% of the total system volume. Compared with non-self-dispersing defoamers, the dosage can be reduced by 20%~40%, lowering raw material costs while avoiding system defects (such as craters and poor film formation) caused by excessive addition.

3. Application Fields

4. Usage Methods

• Addition Method:
  • Direct Addition: Pour the defoamer slowly into the system under stirring, no dilution required (self-dispersing properties ensure uniform dispersion within 30 minutes).
  • Special Scenarios: For systems with extremely high viscosity (e.g., high-solid-content inks), pre-dilute with the system solvent at a ratio of 1:10 before adding.
• Optimal Dosage:
  • Printing Inks: 0.1%~0.3% (based on the total ink volume).
  • Adhesives: 0.05%~0.2% (based on the weight of the adhesive solution).
  • Metalworking Fluids: 0.2%~0.5% (can be increased to 0.8% when foam is severe).

5. Storage and Transportation

• Storage Conditions:Store in a cool and dry place (5℃~35℃), avoid direct sunlight or freezing. Sealed packaging prevents the volatilization of siloxane; it is recommended to use up the product within 3 months after opening.
• Transportation Requirements:It is a non-hazardous material and can be transported as ordinary chemical products. During transportation, avoid collision and deformation of the iron drum, keep it stacked upright to prevent leakage.
• Shelf Life:The shelf life is 24 months in the unopened state. After opening, store in a dry environment; if stratification occurs, stir evenly before continuing to use.