Formply is usually sold on the basis of surface class, stress-grade and bond quality. For
example “Class 2 F17 A Bond”.
This indicates that the formwork plywood is intended to provide a Class 2 surface finish,
has a stress-grade of F17 and has a Type A bond.
AS 6669 permits three (3) bond types as follows:
- A Bond – Durable for 50 years weather exposure
4 - B Bond – Durable for 2-5 years weather exposure
- C Bond – Durable for 1-2 years weather exposure
Currently, all formply manufactured in Australia is Type A or Type B bond.
