This technical note has been developed in response to market problems and failuresrelating to the quality of off form finishes being achieved from formwork plywood in theAustralian market.Most issues relate to Class 2 surface finishes as defined in AS 3610, but issues do from timeto time occur in Class 3.This Technical Note discusses some common formwork plywood problems and lists …

Choosing your Plywood Formply is typically covered with an overlay paper to slow water absorption andcreate a smooth concrete surface; however, there are many different types ofplywood overlays and not all of them are suitable for use on formply. AS6669 hasstrict requirements for the quality of formply overlay to ensure it is water resistant,durable and will not adhere to the …

For years, judging the quality of the as-cast concrete was really a guessing game. Often “good enough” translated to “only a few bugholes” and walls that weren’t too curvy. The subcontractors who followed the concrete placement were expected to patch any honeycombed areas and adjust their framing work to the dimensions left after formwork removal.  But in the last few …