Solder Paste
No-Clean Solder Paste
There basic categories exist for no-clean pastes: High residue, Medium residue, and Low residue types. The most popular no-clean is the Medium Residue type. These Medium Resideue types contain 4.5% to 6.0% by weight solids and prove to meet testing requirements. However, if aesthetics is a concern, lower residue should be used. Whether you SMT process requires no-clean types 3with low residues, exteded tack time and good printability, we can provide you with a suitable no-clean selection. NOTE: Special pkg. in cartridges and tubes are also available. *These parts have SN63/Pb37 alloy. Other alloys are available upon request.

No-Clean Solder Paste

Part Number Description Tack Time
670I-63-250
Designed for high speed component placements Pkg. 250 gm jar. FLUX CLASS PER J-STD-400: Resin MO, PERCENT METAL: 90%.
 4-8 hrs.
Water-Soluble Solder Paste
Water-soluble pastes are commonly used in hard to solder applications when solvent cleaning is not feasible or in applications where no-clean residues may pose cosmetic issues. Qualitek has developed a line of water-soluble pastes, which addresses the issues concerning water-soluble processes. These water-soluble pastes have extended tack time, excellent solderability and pleasant orders. NOTE: Special pkg. in cartridges and tubes are also available. *These parts have SN63/Pb37 alloy. Other alloys are available upon request.

Water-soluble Solder Paste

Part Number Description Tack Time
792-63-250
Very active paste with excellent printability & wash ability. Pkg. 250 gm jars. FLUX CLASS PER J-STD-400: Organic MO, PERCENT METAL: 90%.
 4-8 hrs.
RMA - Solder Paste
RMA paste by Qualitek is Bellcore approved and QLP listed. It can be easily cleaned in CFC substitute or saponifier type cleaners. Made at 90% metals for stenciling and 88% metals for screening. NOTE: Special pkg. in cartridges and tubes are also available. *These parts have SN63/Pb37 alloy. Other alloys are available upon request.

RMA Solder Paste

Part Number Description Tack Time
230-63-250
Standard RMA with excellent activity and pritability. Pkg. 250 gm jars. FLUX CLASS PER J-STD-400: Resin MO, PERCENT METAL: 90%.
 4-8 hrs.
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