SMD291 Tack Flux delivers reliable performance for lead-free soldering projects where RoHS compliance is essential. The included 5cc syringe with precision applicator tip gives you exact control over flux placement, reducing waste and ensuring consistent results on every joint. Ideal for surface mount work, fine-pitch components and detailed repair jobs, this flux wets quickly and cleans easily without leaving stubborn residue. Whether you're working on professional pedal builds or precision DIY projects, SMD291 keeps your workflow efficient while meeting strict regulatory standards.

• Ideal for all rework, solder, de-solder and reflow applications
• Non-corrosive, non-conductive, no-clean
• Tack flux will not run all over PCB when applied
• Has a pleasant odor
• Excellent wetting
• Easily cleaned with isopropyl alcohol (IPA)
• Attachment of BGA spheres
• Soldering flip chip components
• Long stencil life
• Wide process window
• Clear residue
• For Lead-Free applications
• RoHS II and REACH compliant
  

Specifications

• Flux Type: SMD291 Synthetic No-Clean (for Lead-Free applications)
• Flux Classification: REL0
• Packaging: 5cc/5g Syringe
• Shelf Life: Refrigerated >24 months, Unrefrigerated >24 months
• Stencil Life >8 hours @ 20-50% RH 22-28°C (72-82°F), >4 hours @ 50-70% RH 22-28°C (72-82°F)
• Manual cleaning using isopropyl alcohol (IPA).
  
  

Storage and Handling

• Store refrigerated or at room temperature 3-25°C (37-77°F). Do not freeze. Allow 4 hours for flux to reach an operating temperature of 20-25°C (68-77°F) before use.
  
  

Conforms to the following Industry Standards:

• J-STD-004B, Amendment 1 (Solder Fluxes)
• RoHS 2 Directive 2011/65/EU