"R" type solder paste

Key to Rosin Fluxes [from SUPERIOR FLUX & MFG. CO.]

Type R (Rosin): Non-activated rosin flux for soldering copper. Residues are non-corrosive and non-conductive.

Type RMA (Rosin Mildly Activated): Mildly activated rosin flux that contains no chlorides. For higher lead-containing solders.

Type RA (Rosin Fully Activated): High activity rosin flux ideal for high lead alloys.

IPC J-STD-004B Requirements for Soldering Fluxes [http://www.ipc.org/TOC/IPC-J-STD-004B.pdf] ... So, it would be either a "R0L0" or "R0L1"

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I'm the Rep for KOKI in the southeast. They offer solder paste with a type R flux. You can call Shantanu Joshi (760-504-2544) for details.

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