For use with electrolytic regeneration. Circuposit Promoter 3308 is a replenishable alkaline permanganate bath that effectively removes drill smear and debris while texturising remaining resin surfaces to ensure consistently supperior coverage, adhesion and solderability.

CIRCUPOSIT™ Promoter 3310/4140 is an alkaline permanganate solution which effectively removes resin smear from inner layer junctions, whilst
cleaning and texturing the hole wall to improve the adhesion of plated copper.