TENSAN TS‑506 is a lead‑free, no‑clean solder paste formulated with optimised rheology and a carefully balanced flux system. It ensures consistent print volumes, clean stencil release, and extended working time on the stencil – all while maintaining excellent wetting and low voiding. With TS‑506, you can reduce stencil cleaning frequency, improve first‑pass yield, and maximise the utilisation of your printing equipment.
Excellent Printability Solder Paste with Long Stencil Life – TENSAN TS-506
In high‑volume surface‑mount assembly, downtime is the enemy of productivity. Every stencil cleaning stop, every print adjustment, and every scrap panel directly impacts your throughput and cost. The single most important factor determining uptime is the solder paste’s printability and its ability to maintain consistent transfer efficiency over extended production shifts. That is why leading EMS providers and OEMs actively seek a solder paste with long stencil life – one that delivers sharp deposits, minimal slump, and stable viscosity hour after hour.
Excellent Printability Solder Paste with Long Stencil Life – TENSAN TS‑506 is a lead‑free, no‑clean solder paste formulated with optimised rheology and a carefully balanced flux system. It ensures consistent print volumes, clean stencil release, and extended working time on the stencil – all while maintaining excellent wetting and low voiding. With TS‑506, you can reduce stencil cleaning frequency, improve first‑pass yield, and maximise the utilisation of your printing equipment.
What Is TENSAN TS‑506?
TENSAN TS‑506 is a no‑clean solder paste for SMT assembly that delivers:
TS‑506 is the ideal solder paste with long stencil life for high‑mix, high‑volume production lines where uninterrupted printing is key to meeting demanding schedules.
Key Specifications
Alloy & Physical Properties
Electrical & Reliability Properties
Why Choose TENSAN TS‑506 as Your Excellent Printability Solder Paste with Long Stencil Life?
1. Optimised Rheology for Flawless Printing
Printability starts with the paste’s flow behaviour under shear. TS‑506 exhibits a strong pseudoplastic (shear‑thinning) characteristic: it flows easily through the stencil apertures under the squeegee pressure, then quickly recovers its viscosity to hold the printed shape without slumping. This ensures sharp, well‑defined deposits even for ultra‑fine pitches (0.25 mm / 10 mil) and small apertures (as small as 0.20 mm). The controlled tackiness holds components securely during placement, reducing tombstoning and misalignment. This level of performance defines an Excellent Printability Solder Paste with Long Stencil Life.
2. Extended Stencil Life – Less Downtime, More Output
The flux system in TS‑506 is engineered to resist evaporation and degradation at room temperature, preventing the paste from drying out on the stencil surface. In production environments with typical temperature (20‑25°C) and humidity (<65% RH), TS‑506 maintains its viscosity within specification for over 8 hours of continuous printing. This means fewer stencil cleaning cycles (often twice per shift instead of every 2‑3 hours), less operator intervention, and higher overall equipment effectiveness (OEE). As a solder paste with long stencil life, TS‑506 directly contributes to lower cost per joint and higher throughput.
3. Minimal Slump and Bridging
Slump – the spreading of paste after printing – is a major cause of bridging and solder shorts, especially on fine‑pitch QFP and BGA pads. TS‑506’s high yield stress and fast viscosity recovery keep the printed deposits exactly where they are placed, even after hours on the stencil. This stability reduces rework and improves first‑pass yield, making it a trusted solder paste with long stencil life for high‑density boards.
4. Clean Stencil Release – Consistent Transfer Efficiency
Stencil release is critical for volume consistency. TS‑506’s low adhesion to metal stencils ensures clean, complete release from aperture walls, leaving a well‑defined deposit with minimal smearing. This characteristic is maintained throughout the stencil life, ensuring that the first print and the thousandth print have the same volume. This reliability is especially valuable for high‑mix lines that run different boards on the same stencil.
5. Robust Performance Across a Wide Range of Printing Conditions
TS‑506 accommodates varying print speeds (25 – 150 mm/s), stencil thicknesses (100 – 150 μm), and squeegee pressures, giving process engineers flexibility to optimise for their specific equipment. Whether you use metal squeegees or polyurethane blades, TS‑506 delivers consistent results. This adaptability further reinforces its position as an Excellent Printability Solder Paste with Long Stencil Life.
6. No‑Clean Residue – Compatible with ICT and FVT
After reflow, the transparent residue does not interfere with in‑circuit test (ICT) or functional test (FVT) probes, eliminating the need for cleaning. This simplifies the process and reduces chemical costs, while the consistent printability ensures that test pads have the correct solder volume for reliable probing.
Storage and Handling Guidelines
Important: Always warm up TS‑506 in its sealed container to prevent moisture condensation, which can affect printability and increase voiding. Proper handling further extends the stencil life you can achieve.
Recommended Temperature Curve
While printability is the focus, the reflow profile remains important. The slow preheat and moderate soak help the flux activate fully, ensuring that the excellent print characteristics translate into reliable solder joints.
Typical Applications
TS‑506 is the preferred solder paste with long stencil life across a broad spectrum of industries:
Wherever high‑volume printing runs and tight process margins exist, this Excellent Printability Solder Paste with Long Stencil Life delivers the consistency and reliability needed.
Quality Assurance
Every batch of TENSAN TS‑506 is accompanied by a Certificate of Analysis confirming:
Our rigorous quality control ensures that every shipment provides the same excellent printability and long stencil life you expect.
Frequently Asked Questions
Q: How long can TS‑506 stay on the stencil without performance degradation?
A: Under typical shop‑floor conditions (20‑25°C, <65% RH), TS‑506 maintains consistent print performance for more than 8 hours, making it a genuine solder paste with long stencil life. We recommend resealing unused paste between shifts.
Q: Does TS‑506 support ultra‑fine pitch (0.3 mm) printing?
A: Yes, with Type‑4 powder and optimised rheology, TS‑506 prints reliably on 0.3 mm and 0.25 mm pitch pads, provided the stencil design is appropriate. This reinforces its claim as an Excellent Printability Solder Paste with Long Stencil Life.
Q: What squeegee type is recommended for TS‑506?
A: Both stainless steel metal squeegees and polyurethane blades (80‑100 Shore A) work well. Metal squeegees are preferred for fine‑pitch applications to maintain consistent pressure.
Q: How does TS‑506 compare to standard SAC305 pastes in terms of stencil life?
A: TS‑506’s flux system is specifically designed to resist drying, giving it a longer stencil life than many standard pastes, while also being more cost‑effective due to its lower silver content.
Q: Is the paste compatible with high‑speed printers (e.g., 150 mm/s)?
A: Yes, TS‑506 performs well across a wide speed range, from 25 to 150 mm/s, allowing flexibility for different printer models and throughput requirements.
Q: Can TS‑506 be used for paste‑in‑hole (PiH) as well?
A: Yes, its stable rheology also supports PiH applications, though stencil design and printing parameters may need adjustment.
Conclusion
In the competitive world of SMT assembly, printability and stencil life are not just technical specifications – they are direct drivers of productivity and cost. TENSAN TS‑506 is engineered to deliver exactly that: consistent, high‑quality prints hour after hour, shift after shift. It is the Excellent Printability Solder Paste with Long Stencil Life that helps you reduce downtime, improve yield, and maximise equipment utilisation.
By choosing TS‑506, you invest in a solder paste with long stencil life that also provides low voiding, excellent wetting, and electrical reliability – all at a cost‑effective low‑silver composition. Whether you run high‑mix prototypes or massive volume production, TS‑506 gives you the printing performance you need.
Upgrade your SMT line with TENSAN TS‑506 – where printability meets durability.
Contact Information
TENSAN VIETNAM CO., LTD
TS10 Road, Tien Son Industrial Park, Bac Ninh Province, Vietnam
Tel: +84‑222‑650‑8818
Email: mark@sztensan.com
