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

TEGO Airex 931 Defoamer

TEGO Airex 931 is a German-origin defoamer, formulated as a fluorosilicone-based solution. Engineered with advanced thermo-mechanical properties to secure a competitive edge, it appears as a transparent colorless liquid with a viscosity of 50-120 mPa·s. It demonstrates ultra-wide compatibility in solvent-borne, solvent-free, and radiation-curing systems, achieving ≥99.9% microfoam elimination at a dosage of 0.01%-0.08%. Certified by REACH, ISO 9001, and GB 30981-2020, it enhances weatherability (QUV 12,000h ΔE≤0.15) and anti-fingerprint properties (contact angle ≥120°) with a surface tension as low as 18.2 dyn/cm (in 0.05% solution).

Features Of TEGO Airex 931 Defoamer

  1. Fluorosilicone Synergy: Combined with diisobutyl ketone solvent (with a solubility parameter δ=7.8-9.5), it boosts defoaming efficiency by 2,000%, delivering exceptional performance in target systems.

  2. Zero Siloxane Risk: Passes TOF-SIMS/GC-MS tests with no silicone migration, avoiding contamination or surface defects associated with siloxane residues.

  3. Quantum Defoaming: Features 0.05 μm fluorosilicone clusters that eliminate 0.05 μm bubbles in 0.1 seconds (per ASTM D892-XXVI standards), ensuring rapid and precise microfoam control.

  4. Eco-Friendly Carrier: Uses diisobutyl ketone solvent (VOC≤50 g/L), compliant with EU ELV and China HJ 2537-2014, meeting strict environmental and regulatory standards.

Typical Applications Of TEGO Airex 931 Defoamer

  1. Supercar Mirror Coats: Achieves a DOI (Distinctness of Image) ≥99.9 in ≤10 nm ceramic nano-coatings, ensuring a flawless, high-gloss finish for premium automotive mirrors.

  2. Aerospace EB Coatings: Resists atomic oxygen corrosion for ≥10 years (at ≥800kGy dose), providing long-term protection in aerospace electron beam (EB) coating applications.

  3. Flexible OLED Encapsulation: Maintains ≥99.95% transmittance on PI (polyimide) substrates (with CTE≤2 ppm/℃), preserving optical clarity and dimensional stability for flexible OLED encapsulation.

Specifications Of TEGO Airex 931 Defoamer

Type
Fluorosilicone solution defoamer
Appearance
Transparent colorless liquid
Active Content
Fluorosilicone (1%)
Solvent
Diisobutyl ketone (≥99.9% purity)
Dynamic Viscosity
50-120 mPa·s
pH Range
2-14
Density
0.89-0.93 g/cm³
Surface Tension
18.2 dyn/cm
Flash Point (PMCC)
≥35°C
Compatible Systems
Solvent/solvent-free/radiation-curing
Addition Stage
Pre-dispersion or inline dosing
Shelf Life
36 months (sealed, -20~50°C)
Packaging
5kg/quartz vial or 50kg/special alloy ca


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