DKL DK-P8 No-Clean Tin/Lead Solder Paste

DKP8 Solder Paste

Description

DKP8 is a halogen-free, no-clean solder paste engineered to deliver exceptional soldering performance with leaded alloys. Designed for a variety of substrate materials including Sn/Pb, Au/Ni, and OSP-treated finishes, DKP8 combines excellent print consistency with strong process flexibility. Its pin-testable formulation allows easy test probe penetration through post-soldering residues, and it is fully compatible with both air and nitrogen reflow systems.

Key Benefits of using DKP8 no clean solder paste

Fast printing speeds: 20–300 mm/sec
No-clean formulation: ROL0 (J-STD-004)
Slump-free – eliminates solder balling and mid-chip balling
Halogen-free – environmentally friendly composition
Consistent, printer-friendly performance
Excellent solderability with up to 72-hour tack life
Suitable for both air and nitrogen reflow

Slump-Free Performance

DKP8’s synthetic gel system ensures higher temperature stability – remaining structurally sound up to 60°C above conventional gel pastes. This design eliminates solder balling and mid-chip defects by preventing premature de-structuring during reflow. The result is cleaner joints, improved cosmetic finish, and enhanced reliability across assemblies.

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The advanced activator system in DKP8 allows optimal soldering performance across a range of thermal profiles. Whether for low-temperature activation or sustained activity under longer reflow conditions, DKP8 provides engineering flexibility—enabling process optimisation for best yield and minimal defects.

VOC-Free Printing

Utilising a modern solvent package, DKP8 qualifies as VOC-free according to the European Solvent Directive (vapor pressure < 0.1 mbar). This allows environmentally responsible, low-emission printing operations without compromising soldering quality.

Cleaning

Although no cleaning is required, DKP8 residues can be easily removed using DKL’s range of cleaning agents. Our cleaners effectively eliminate flux residues without leaving white stains or crystalline deposits. Recommended cleaning conditions are 25–60°C for 2–5 minutes.

Storage and Shelf Life of DKP8 no clean solder paste

Storage: Room temperature or refrigerated between 0°C and 10°C for best results
Shelf life (refrigerated <10°C):
- 12 months for unopened cartridges and tubs
- 6 months for unopened syringes
Always allow the paste to reach room temperature before opening

Printing Guidelines

Ensure the paste is at room temperature before use. For tubs, stir thoroughly and apply a consistent roll across the stencil. DKP8 provides smooth, reliable printing at speeds between 20–300 mm/sec.

Alloy Availability

Alloy	Composition	Metal Content	Particle Size	Available Packaging
62S	Sn62Pb36Ag2	90.0%	25–45 μm (T3)	1000 g / 500 g cartridges, 500 g / 250 g tubs
63/37	Sn63Pb37	90.0%	25–45 μm (T3)	1000 g / 500 g cartridges, 500 g / 250 g tubs