Wrap and Twist in FormplyAS 6669 provides a 30mm flatness limitation for formply sheets. To measure flatness,formply sheets are placed concave down on a flat surface and any bow or twist exceeding30mm above the flat fails the product Standard.In addition, sheets must be able to be pushed flat using “palm pressure”, of approximately15kg.Formwork plywood supplied to the market with flatness …

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 …