Ecofrec 303 is a high-reliability, VOC-free, no-clean liquid flux. It is designed for high-performance wave soldering and selective soldering.

Key Features of Ecofrec 303 VOC-Free Flux

• Water-based, VOC-free chemistry
• No cleaning required
• Perfect for wave and selective soldering

Safer, Greener Chemistry

This flux meets strict environmental rules without compromising quality. In addition, its water-based chemistry removes the risks of alcohol-based solvents.

Wide Process Window

Ecofrec 303 offers a very wide process window. As a result, it gives excellent wetting on many board finishes, including OSP and Ni/Au.

Clean, Reliable Residue

The low-residue formula leaves a non-conductive finish that needs no cleaning. So it keeps excellent surface insulation resistance (SIR), even in demanding conditions.

Why Choose This VOC-Free Flux?

It comes in a robust 5L drum. For example, it suits manufacturers who want a sustainable solution that still supports zero-defect soldering.

Therefore, Ecofrec 303 helps you meet high standards for both safety and environmental compliance.

Because there is no alcohol to evaporate, it also helps reduce solvent odours around your soldering machines.

Browse our full range of soldering fluxes to find the right match for your process.