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

TEGO Foamex 32 Defoamer

TEGO Foamex 32 is a German-origin defoamer, formulated as a self-emulsifying polyether-silicone/fumed silica nanocomposite. Engineered with advanced thermo-mechanical properties to secure a competitive edge, it appears as an amber transparent liquid with a viscosity of 800-2,000 mPa·s. It maintains stable activity under extreme pH conditions (0.5-14) and temperatures ≤220°C, achieving 99.8% foam suppression at a dosage of 0.005%-0.03%. Certified by REACH, ISO 9001, and GB 30981-2020, it enhances weather resistance (QUV 5,000h ΔE≤0.5) and thermal conductivity (≥0.8 W/m·K) in high-solid automotive coatings and electronic encapsulation systems.

Features Of TEGO Foamex 32 Defoamer

  1. Self-Emulsifying Technology: Equipped with 80 nm particles that auto-disperse in water (with ≤5% size growth, verified by DLS), eliminating the need for pre-dispersion and simplifying production workflows.

  2. Extreme Tolerance: Maintains stability during 220°C/4h baking (with ≤0.3% viscosity change) and across pH 0.5-14, ensuring reliability in the harshest processing environments.

  3. 100% Active Concentrate: Solvent-free, featuring a 3D network of fumed silica with a surface area of 450 m²/g, delivering high efficiency without volatile components.

Typical Applications Of TEGO Foamex 32 Defoamer

  1. Automotive E-Coat: Achieves a DOI (Distinctness of Image) ≥98 in ≥30μm cathodic electrodeposition primers, ensuring a smooth, high-quality finish for automotive electrocoating systems.

  2. 5G Electronic Potting: Enhances thermal conductivity by 40% in ≥800,000 mPa·s silicone/epoxy formulations, improving heat dissipation for high-performance 5G electronic components.

  3. UV-LED Inks: Controls dot gain to ≤0.15% under UV-LED curing at ≥800 mJ/cm² (385-405nm), ensuring precision in high-intensity radiation-cured ink applications.

Specifications Of TEGO Foamex 32 Defoamer

Type
Self-emulsifying polyether-silicone/fumed silica concentrate
Appearance
Amber transparent liquid
Active Content
Polyether-silicone + fumed silica (100%)
Dynamic Viscosity
800-2,000 mPa·s
pH Range
0.5-14
Density
1.20-1.28 g/cm³
Surface Tension
15.2 dyn/cm
Flash Point (PMCC)
≥250°C
Solvent System
Solvent-free
Recommended Dosage
0.005%-0.03% (by total weight)
Shelf Life
60 months (sealed, -30~70°C)
Packaging
10kg/stainless steel can or 200kg/IBC tote


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