Kester Solder Paste P/N 7021020511 (Flux-R562, Type 3, Water Soluble, Sn63Pb37, Metals 0.9). Price and package is in 600g Cartridges.
Kester R562 is an organic acid, water-soluble solder paste specifically designed for resistance to environmental extremes. Water-soluble pastes tend to dry out in low relative humidity and slump at high relative humidity. R562 will maintain its print characteristics, tack and activity even after exposure to environmental extremes. • Reduces BGA voiding to <3% • Bright, shiny joints • 12 hour stencil life • Print speeds up to 6 in/sec • Compatible with enclosed print head systems • Capable of multiple reflow profiles before a cleaning operation is required • Consistent printing over a range of temperatures and humidity • Excellent solderability to a wide variety of metallizations, including Palladium • Residues easily removed with hot DI water, even up to 96 hours after processing • Classified as ORH0 per J-STD-004
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