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STIRRI RMA

Chemical Family
Rosins

STIRRI RMA™ is a no-clean solder paste and tacky flux known for its excellent printability and suitability for stencil applications. It belongs to the rosin chemical family and complies with regulatory standards like REACH (Europe). Ideal for defense and aerospace applications, it offers reliability and precision in soldering tasks.

Product families

Industrial — Military & Defense
  • Other Military & Defense Applications
Automotive & Transportation — Transportation
  • Aerospace & Aviation

Other characteristics

Brand
STIRRI
Features
Excellent Printability
Product Type
Solder Paste
Application Area
  • Aerospace Applications, Defense, Stencil
  • Aerospace Applications
  • Defense
  • Stencil
Markets
  • Automotive & Transportation
  • Industrial
Keynotes

Rosin-based low-activity ROL0 (No-clean); World-class printability, instant activity response; Optimal tack/viscosity for Defense/Aerospace; Superior dispensing flow, stellar stencil printing, excellent pin transfer; Sharp definition at high-speeds; Low solder balling and graping; Long stencil life; REACH-complaint; Easy to clean using IPA, solvents, water-based saponifiers, vapor degreaser or ultrasonic devices

Printing

Optimal print definition for fine pitch applications. Long stencil life of this product virtually eliminates waste of solder paste. For mesh/size determination refer to the Pitch Requirements chart below:

Viscosity
* Malcom @ 10 RPM @ 25°C x10³ g/cm/s
Availability

STIRRI-RMA™ available in many alloys including high reliability solder: Sn42Bi58, Sn42Bi57.6Ag0.4, Sn42Bi57Ag1, Sn43Pb43Bi14, Sn60Pb40, Sn62Pb36Ag2, Sn62.8Pb36.8Ag0.4, Sn63Pb37

Technology
Ready-to-Use Products
Packaging Type
  • Cartridges
  • Jars
  • Syringe
Product Families

Ready-to-Use Products — Other Ready-to-Use Products

Printer Operations

Stencil printer does not require any specific optimization, should be fully adjustable based on standard in-house process requirements, including high-speed printers; Print Speed: 20-200 mm/sec (add pressure for speed) Squeegee Pressure: 70-540 g/cm of blade (add for speed) Stencil Vac/Wipe: Every 10-25 prints or as necessary; Automated and vacuum cleaning systems for both stencil and misprinted boards. Manual cleaning using Isopropyl alcohol (IPA), co-solvents and/or ultrasonic scrubbers, vapor degreaser.

Packaging Information
Options with various viscosity and metal load for stencil printing and dispensing applications:
Printing
Jars, 1/4 NPT nozzle cartridges
Dispensing
Syringes, ProFlow cassettes
Certifications and Compliance
REACH (Europe)
Ready to Use Product Features
Excellent Printability
Shelf LIfe

Refrigerated storage at 5-7°C will prolong the solder paste shelf life to no less than 6 months. Solder Paste should be allowed to reach ambient temperature, normalize for about 6-8 hours before use. Tacky flux has 24 months shelf life stored in room temperature. Refrigeration won't extend shelf life. Normalize for 4-6 hours if stored refrigerated. Paste/flux in syringes and cartridges should be kept vertically, dispensing tip pointing down.. Note :NEVER FREEZE SOLDER PASTE / FLUX!

Technical data

Table 1 of 1

1 row
CharacteristicValueUnit
Stencil Life (at 30 - 70% R/H & 20 - 25°C)max. 12hours

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