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CIRCUPOSIT™ Hole Prep 4126

CIRCUPOSIT™ Hole Prep 4126 Sweller is a solvent swell product designed to enhance the resin texturing and smear removal of high Tg materials during the subsequent CIRCUPOSIT™ Promotor stage. 

Pack Sizes and Applications:





  • High Density Interconnect

Material Features:

  • CIRCUPOSIT™ Hole Prep 4126 Sweller has been formulated to be capable of processing both traditional FR-4 type laminates and more advanced high Tg materials
  • Its low solvent concentration makes waste treatment much easier
  • It is designed to produce an excellent surface texture on the hole wall
  • Featuring a single solvent system, optimising ease of control
  • CIRCUPOSIT™ Hole Prep 4126 Sweller is ICD-free