. .

Pure and Ultra-Pure

SPEX Fusion Flux

Announcing SPEX CertiPrep's lines of Pure and Ultra-Pure Fusion Fluxes and additives. Both lines are made from a "Micro Bead" formula to guarantee the same ratio of components in every bead. These beads prevent harmful dust from clogging your instruments. To maintain a higher level of consistency and quality, each batch of Flux is made identically with no lot-to-lot variation.

Request a free 100g sample of the SPEX Fusion Flux of your choice.
No purchase necessary.

Key Benefits:

  • Pre-Fused with additives for better accuracy
  • New Micro Beads eliminate dust that clogs equipment!
  • Consistency — Each bead has the exact same ratio of components
  • Our Ultra-Pure line is 99.998% pure!