SMT Equipment

WS159 - Water Soluble Solder Paste

Company Information:

With numerous facilities in the United States, we are one of the electronics industry's leading manufacturers of lead-free solder products, superior quality stencils, and precision cut parts.

Greeley, Colorado, USA


  • Phone 970-346-8002
  • Fax 970-346-8331

See Supplier Website »

Company Postings:

(14) products in the catalog

(14) technical library articles

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WS159 - Water Soluble Solder Paste

WS159 - Water Soluble Solder Paste


WS159 - Water Soluble Solder Paste


Solder Materials

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WS159 - Water Soluble Solder Paste Description:

WS159 water washable solder paste is designed to provide humidity tolerance and excellent wetting to meet the requirements for reliable solder joints in PCB Assemblies. WS159 offers high levels of repeatability and consistency even in a wide range of temperatures (65-85F) and relative humidity (25-65% RH). WS159 is formulated to deliver exceptional cosmetics with easy-cleaning residues using warm water.


  • Excellent print volume consistency with Surface Area Ratios (SAR) as low as 0.55 when used with the UltraSlic™ stencil technology
  • Non-hygroscopic formulation resistant to slump and dry-out, suitable for areas with extreme humidity conditions
  • Wide reflow window with excellent wetting characteristics on all surface finishes
  • Enhanced tack performance and printer open time
  • Low voiding/high reliability composition
  • Compatible in either Nitrogen or Air reflow



SN63 (MP=183°C)
62/36/2 (MP=179°C)

Powder Size

Type 3 and Type 4 Standard
Type 5 available upon request


Automatic/Manual Printing
Automatic/Manual Dispensing

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WS159 - Water Soluble Solder Paste was added in Apr 2012

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