Lead-Free No-clean Solder Paste
Type: SMRT-305

• Description
  Formula is a mildly activated resin-based formulation designedspecifically to allow post-process residues to be left on the PCB without degradation.
  SMRT-305 has a wide process window uncommon to most no-clean solder pastes, which allows it to accommodate a variety of environments and process applications.
  SMRT-305 performs well in continuous production, offering good slump resistance, high tack, and low post-process residues. The post soldering residues are compatible with ICT (In Circuit Testing).
  SMRT-305 is a solder paste formula that maintains its activity and printing characteristics for up to 8 hours.


• Features
  Alloying component: Sn96.5-Ag3.0-Cu0.5
  Powder size: Type4 (20~38µm)
  Alloying powder component: 89.0wt%
  Residue: about 5wt%
  Packaging: 500g per bottle
  


• Application
  The product is applied to between standard moulding board print and fine pitch one.
  The print speed is suggested to be 20~100mm/sec.
  The moulding board thickness is 0.1mm~0.2mm,The scraper pressure is 1~10kg/cm2.
  Application conditions: Temperature: 25±3°C,RH≤65%.


• Safety
  SMRT-305 has no toxicity, but it will produce some reacting or compound broken down gas in the process of solder reflowing. Therefore, It's suggested that there aregood atmospheric conditions in the work area.


• Store
  SMRT-305 a refrigerated shelf life of 6 months at 3-10°C.
  
  SMRT-305 packaged in syringes must be refrigerated in order to avoid material separation. Do not freeze this product.
  
  Allow the solder paste to warm completely and naturally to ambient temperature (4 hours is recommended) prior to breaking the seal for use.
  
  Refrigeration may result in the separated materials of solder paste. Thoroughly mix the product for 3 to 6 minutes for manual mixing and 2-3 minutes for machine mixing before application.
  
  Do not store new and used paste in the same container. Re-seal any opened containers while not in use. As the cap of the 500 gram jars is not a seal, replace the internal plug in conjunction with the cap to ensure the best possible seal.