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Qualitek 618D lead free solder paste syringes

618D Leaded Solder Paste

618D Leaded Solder Paste

MPN: 618D

A lead free solder paste in a syringe for easy hand or dispensing equipment application.

  • A Tin Silver Copper SAC305 alloy
  • Available in Type 3 and Type 4 solder powders
  • No clean flux

Note: Currently not available for delivery to N.Scotland, N.Ireland, Scottish Isles, Isle of Wight, Isle of Man, Scilly Isles, Europe Zone 3, Europe Zone 4, Europe Zone 5, Europe Zone 6, Guernsey, Jersey and Australia, Brazil, Canada, Hong Kong, Malaysia, Mexico, New Zealand & USA.

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Choose Piston & Plunger (Hand dispensing):
Choose Solder paste powder size:
from £17.68 ex VAT(£21.22 inc VAT)


Delivery Options

Product Description

A lead free solder paste available in a syringe for easy dispensing when soldering SMT components of printed circuit boards. The Qualitek 618D is a SAC305 Tin Silver Copper standard solder paste lead free alloy combined with an excellent no clean flux.

Excellent wetting and tack life

Available as a Type 3 and Type 4 powder size

No cleaning required

Available with a piston and plunger for hand dispensing or without for automatic dispensing machines

Customer Reviews

By on
"did the job very fine."
Star Rating 5


Alloy: Tin 96.5% Silver 3% Copper 0.5%
Metal Content: 86%
Flux: No Clean (ROL0)
Recommended needle gauge: Type 3 (Gauge 23), Type 4 (Gauge 25)
Bellcore compliant
Pin testable post solder residues

See our range of Dispensing Needles at this link:




I'm unsure of the difference in a Type 3 solder paste and a Type 4 solder paste. Are different pastes used for different surface mount component soldering?

Solder paste types are based on the solder powder carefully graded to produce a powder with a predominant particle size. A Type 3, which is probably the most common size, is used for fine-pitch components at or above 0.5 mm (0.020") pitch. It has >80% particle size of 25 - 45 um. AType 4 solder paste is typically used for fine-pitch components below 0.5 mm (0.020") pitch and is made up of >90% of 20 - 38um powder particles.

Somerset Solders

Leading stockist of lead free and leaded solder wires, pastes and bar. Liquid fluxes and flux gels stocked.

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Qualitek 618D lead free solder paste syringes