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

TEGO Airex 900 Defoamer

TEGO Airex 900 is a German-origin defoamer, formulated as a silicone-nonionic surfactant nanocomposite. Engineered with advanced thermo-mechanical properties to secure a competitive edge, it appears as a clear to slightly hazy liquid with a viscosity of 50-150 mPa·s. It maintains stable activity under temperatures ≤120°C and extreme shear (≥10⁴ s⁻¹), achieving 95% foam suppression at a dosage of 0.03%-0.08%. Certified by REACH, ISO 9001, and GB/T 23986-2009, it enhances leveling (Ra≤0.1 μm) and curing efficiency in radiation-curing systems and two-component epoxy formulations.

Features Of TEGO Airex 900 Defoamer

  1. Universal Compatibility: Stable in UV/EB curing systems (≥200 mJ/cm²), 100% solid epoxy (with amine value 200-400 mg KOH/g), and solvent-borne acrylics (≥60% solids), adapting to diverse formulation types.

  2. Nano Enhancement: Features 0.25 μm silicone particles that collapse bubbles in 2 seconds (per ASTM D892-VIII standards), ensuring rapid and effective foam control.

  3. High-Temp Resistance: Exhibits ≤2% viscosity change when baked at 120°C, maintaining stability in high-temperature processing.

Typical Applications Of TEGO Airex 900 Defoamer

  1. Epoxy Self-Leveling Floors: Achieves ≥5H hardness in ≥3mm amine-cured epoxy systems, enhancing the durability and strength of self-leveling floor coatings.

  2. UV Screen Inks: Controls dot gain to ≤0.5% at curing speeds ≥30 m/min, ensuring precise and consistent print quality in UV screen printing.

  3. Wood UV Primers: Improves sandability by 30% in nitrocellulose (NC) systems with ≥40% solids, facilitating smoother post-processing of wood primers.

  4. Electronic Potting: Limits bubbles to ≤0.01% in PU encapsulants with ≥50,000 mPa·s viscosity, ensuring reliable protection and performance in electronic potting applications.

Specifications Of TEGO Airex 900 Defoamer

Type
Silicone-nonionic surfactant nanocomposite
Appearance
Clear to slightly hazy liquid
Active Content
Modified silicone + nonionic surfactant (15%)
Dynamic Viscosity
50-150 mPa·s
pH Range
4-12
Density
0.95-1.02 g/cm³
Surface Tension
20.5 dyn/cm
Thermal Stability
No activity loss (120°C/4h)
Recommended Dosage
0.03%-0.08% (by total weight)
Shelf Life
24 months (sealed, -10~50°C)
Packaging
20kg/stainless steel drum or 200kg/IBC tote


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