High Density Overlay (HDO) 173C Concrete Form

Description: Paneltech’s Conform HDO is a specialty overlay composed of a bleached kraft paper saturated with high levels of phenolic thermoset resin. Its high resin content gives a smooth surface ideally suited for use as a concrete forming surface. It gives a smooth surface finish to concrete suitable for architectural pours.

HDO 173C bonds well to an MDO cushion sheet as well as commonly used wood substrates. HDO 173C has been fully APA certified for concrete forming and has undergone extensive field testing. 173C exceeds the requirements of the PS 1-07 Voluntary Product Standard.


  • Durable, hard surface resists alkalinity and abrasion wel/
  • 54% Resin Content, 50 lb (80 gsm dry weight) base paper.
  • Use as 100/30, 120/30 or as a backer to balance an HDO panel
  • Quality controlled continuously by online weight and volatile sensors calibrated hourly
  • Each sheet visually inspected