Duro Pumaply is the evergreen workhouse plywood that can withstand any adverse condition. Duro pumaply is a 100% boiling water plywood that is bonded with the best quality phenol formaldehyde resin, manufactured with AAA grade tropical hardwood and termo treated. Thus, be it inclement weather, changes in humidity, or even termites, Duro Pumaply is truly an all weather proof plywood.