Project Description

LEAD SOLDER PASTE

YunFang series solder paste is No Clean, Lead-Free & ROL0 designed to offer the SMT process reliable solder joints for assembly of components on PCB. It has been formulated to provide good printing performance, tack holding power for components during pick & place process and optimized soldering attributes during reflow.

When You Need a Solution

Whether you are a hobbyist or manufacturing professional, engineer or a contractor, we are here to help you find a solution for your assembly application. Combining top name brands with expert support, your success is our priority!

DESCRIPTION

YunFang paste flux system has been designed for tin-lead applications. It is a No Clean,ROL0 formulation to offer the SMT process reliable solder joints for assembly of components on PCB. The product chemistry is compatible with Tin-lead alloy such as Sn60Pb40 or Sn63Pb37 alloys. It has been formulated to provide good printing performance,tack holding power for components during pick and place process and optimized soldering attributes during reflow.

Alloy melting temperatures

Lead Free Solder Paste
(Jar or syringe packing)
Melting point ˚C
Sn96.5Ag3.0Cu0.5

Sn99.0Ag0.3Cu0.7

Sn42Bi58

Sn64Bi35Ag1.0

Sn64Bi35Ag0.3

217˚C-221˚C

217˚C-228˚C

138˚C

178-182˚C

185-187˚C

Lead Solder Paste
(Jar or syringe packing)
Melting point ˚C
Sn60/Pb40

Sn63/Pb37

191˚C

183˚C

Technical Docs

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Support Services

offers a variety of solder and specialty products and technical support to assist any size customer.

Stencil Design Support

Solder paste defects may be prevented as early as the pre-design stage. The design of the stencil and its apertures is vital to ensure acceptable paste performance. Due to the importance of this parameter, Yunfang offers a stencil design support and consultation service.

Solder Joint Analysis

Yunfang Solder’s Reliability Analysis Program provides analytical support services such as solder joint and cleanliness analysis to ensure the integrity and reliability of these parts and assembled products before a failure occurs.

​Solder Analysis

The solder in a wave solder machine can become contaminated with other metals dissolved during the soldering process. Our solder support services include solder testing and analysis to help prevent defects.

Dross Reclamation

Our solder recycling service is easy, environmentally friendly, and complies with all federal, state, and provincial regulations. You will be provided with free reclamation buckets and shipping labels along with instructions for returning dross.

Consulting Services

Our solder support personnel will work with the customer’s process engineers and machine operators, sharing their expertise in soldering materials and applications, until the issue has been resolved completely.

Technical Training

In the ever-changing electronics assembly industry, it is often difficult to maintain the latest welding materials and process technology. Through Yunfang, customers enjoy more than just a strong supplier, but also a partner and coaching advantage.

Custom Service

Yunfang Metals offers a variety of additional value-added services, including Solder alloy, Rosin content, package, and label. With these value-added services, vast product offering, and knowledgeable customer service, it’s easy to see that Yunfang Metals is truly your one source for your complete Solder products needs.
For questions or to receive a quote, contact our sales team and they will be happy to assist you.

FREE QUOTE

Do you need help with soldering? Fill out this form to get in touch.

EMERGENCY

+86-13925579960

E-MAIL

Sally@yunfangxiye.com

WORKING HOURS

8:00am – 6:00pm

EMERGENCY

+86-13925579960

E-MAIL

Sally@yunfangxiye.com

WORKING HOURS

8:00am – 6:00pm