For Lamination of Coverlays and Flexible Circuits

Pacoflex•Ultra is specifically engineered for the Lamination of Cover-Layers to Flexible Printed Circuit Boards. This product is a robust highly Conformable Release Film which, when exposed to heat and pressure , becomes extremely soft and pliable for superior conformance to intricate flex part topographies. The soft heat-activatable hydraulic center is application-designed to consistently reduce excessive “squeeze-out” and effectively blocks adhesive or resin flow into unwanted areas.

• Total Elimination of Entrapped Air between the Cover-Layer and the Circuitized Base Laminate.
• PacoFlex•Ultra delivers discreet hydraulic force to reliably drive the Cover-Layer into complete
  side-wall conformance with the Circuitized Base Laminate.
• Finite Control of Adhesive Flow.
• Due to the optimized surface, and superior conformability, PacoFlex•Ultra dams back acrylic and
  epoxy adhesives from flowing into Cover-Layer clearance areas.
• Quick, Easy, Contaminate-Free Release
• Two-Ply polymeric structure with “functional” release on the matte opaque side is positioned
  adjacent to the circuit leaving the other shiny side to be easily positioned adjacent to the
  PACOPAD® conformable driver sheet which is easily determined by operator use.
• Reduces mechanical distortion.
• PacoFlex•Ultra “locks-in” around the Flexible components to minimize distortion due to Heat
  and Pressure.
• PacoFlex•Ultra conforms closely to the part surface without excessive flow-out from the
  sheet. Deformed Circuits, Crushed Pads, and Glossy Pressure Spots are eliminated, resulting in
  repeatable Pad Registration due to the engineered z-axis characteristics of the base hydraulic
  film.
• Allows for Reduced Lamination Pressure in some applications.
• PacoFlex•Ultra , used with PACOPADS® Pressure Diffuser Pads, delivers unmatched Z-axis
  pressure equalization. These two companion products conform and stabilize the Flexible
  components allowing the user to reduce the Hydraulic Force by up to 30%.

• One-Side releasable with two-ply polymeric structure for a more robust residue free functionality. Gauge measures .006" (156µ).
• Engineered Conformance layer that prevents uncontrolled “squeeze-out”.
• Smooth Surface Finish for superior Adhesive Flow Control.
• Extremely low X-Y axis movement.
• Clean, inert with no out-gassing of contaminants or solvents harmful to Vacuum systems.
• Operating temperature to 425°F/216°C with reduced Ram Pressures.
• Environmentally friendly with no ozone-depleting Chemicals or Flourines.
• Suitable for incinerator or landfill.