Atron DC ATRON® DC is a water-based cleaner for safe, high-performance removal of coatings from frames, pallets and fixtures. Atron SP 200 ATRON® SP 200 is an alkaline aqueous cleaner for carbonized flux residues on wave-solder frames and flux traps. Atron SP 300 ATRON® SP 300 is an aqueous alkaline cleaner for baked-on flux residues in cyclones, condensation traps and solder pallets.