Key considerations for choosing the right flux

What Does 'No-Clean' Mean? The more powerful a flux is as a cleaner, the more it requires clean up after itself. While some residues can be conductive or corrosive and require removal, no-clean fluxes are designed so that their residues do not need to be cleaned off.

What Does Water-Soluble Mean? Water-Soluble flux allows residues to be swiftly washed away, leaving a clean surface. Such solder paste provides improved wettability and enhanced activation, leading to more reliable solder joints.

What Does Rosin or RMA (Rosin Mildly Activated) Mean? Rosin is a natural resin derived from pine trees and available with three levels of activation for stronger levels of cleaning. Its residue is non-corrosive and typically does not need to be cleaned off the board. It's highly effective at removing oxidation from metal surfaces and ensuring good solder joints.

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