A ready to paint, galvanised metal jointer used to join HardiePlank™ weatherboard cladding. This accessory supports the plank to allow for application of James Hardie™ Joint Sealant. Specifically designed for use with 230mm HardiePlank® weatherboards. A concealed alternative to PVC jointers. Suitable for use with all HardiePlank® weatherboard finishes e.g. 'Smooth', 'Woodgrain' etc. Not suitable for coastal applications.