This standard specifies the requirements for metal-faced plywood, a composite material made by bonding metal sheets to a plywood core. It details the materials (plywood, metal, adhesive), manufacturing process, dimensions, tolerances, finish, and testing methods to ensure performance in applications like partitions, furniture, and vehicle bodies.
Metal-faced plywood -Specification
Quick Reference Values
Plywood Core RequirementConforming to IS 303 or IS 710
Adhesive for Bonding MetalSynthetic resin adhesive conforming to IS 848
Tolerance on 12mm thickness±1.2 mm
Adhesion Test LoadNo separation under 50 kg load for 6 hours
Wet Heat Test Condition3 hours in boiling water
Dry Heat Test Condition150 ± 2 °C for 4 hours
Practical Notes
Ensure the core plywood grade (IS 303 for MR, IS 710 for BWR) is specified according to the application's moisture exposure.
The choice of metal facing (e.g., aluminium, GI steel) and its thickness must be clearly specified to meet corrosion resistance and structural needs.
Verify that the adhesive used for bonding metal to plywood is of Phenol Formaldehyde (PF) type for exterior or high-humidity applications.