A mould tool comprising: a first tool part defining a first area of a mould profile; an actuated tool part defining a second, adjacent area of the mould profile, which actuated part is configured to move from a moulding position to an actuated position at the end of each mould cycle to facilitate removal of a moulded component; and, a temperature control apparatus configured to control the temperature of the actuated part to influence a clearance between the first part and the actuated part by thermal expansion and / or contraction of the actuated part; characterised in that: the first tool part is divided into a plurality of independently temperature controlled zones, each zone having: a cavity; and, an independently operable temperature control apparatus arranged to provide a fluid flow to the cavity in order to alternately heat and cool the mould profile; and, the mould tool comprises a controller which is configured to: independently control each of the independently operable temperature control apparatuses in each of the independently temperature controlled tool zones of the first tool part; and, independently control the temperature control apparatus of the actuated tool part. a first tool part defining a first area of a mould profile; an actuated tool part defining a second, adjacent area of the mould profile, which actuated part is configured to move from a moulding position to an actuated position at the end of each mould cycle to facilitate removal of a moulded component; and, a temperature control apparatus configured to control the temperature of the actuated part to influence a clearance between the first part and the actuated part by thermal expansion and / or contraction of the actuated part; characterised in that: the first tool part is divided into a plurality of independently temperature controlled zones, each zone having: a cavity; and, an independently operable temperature control apparatus arranged to provide a fluid flow to the cavity in order to alternately heat and cool the mould profile; and, the mould tool comprises a controller which is configured to: independently control each of the independently operable temperature control apparatuses in each of the independently temperature controlled tool zones of the first tool part; and, independently control the temperature control apparatus of the actuated tool part. the first tool part is divided into a plurality of independently temperature controlled zones, each zone having: a cavity; and, an independently operable temperature control apparatus arranged to provide a fluid flow to the cavity in order to alternately heat and cool the mould profile; and, a cavity; and, an independently operable temperature control apparatus arranged to provide a fluid flow to the cavity in order to alternately heat and cool the mould profile; and, the mould tool comprises a controller which is configured to: independently control each of the independently operable temperature control apparatuses in each of the independently temperature controlled tool zones of the first tool part; and, independently control the temperature control apparatus of the actuated tool part. independently control each of the independently operable temperature control apparatuses in each of the independently temperature controlled tool zones of the first tool part; and, independently control the temperature control apparatus of the actuated tool part.