Qualitek 399-42 is a homogeneous mixture of halogen-free, low solids organic flux designed for high-temperature lead-free wave-soldering, selective soldering, surface mount assembly and through-hole applications. 399-42 exhibits excellent wetting and through-hole fill. 399-42 was formulated specifically for lead-free soldering processes.

Qualitek 399-42 flux is also available in bulk container sizes (5L & 10L), please contact our Sales Office for a quotation for these container sizes.

Key Product Features and Benefits:

– Available to purchase online in a 1L container. For larger container sizes contact our Sales Office.
– Flux Classification: ORL0
– Excellent Hole Fill
– Halogen-free
– Specifically designed for Lead-Free Solder Systems
– 2 year shelf life from DOM

Weight N/A

10L, 1L, 5L


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