diff --git a/cura/Machines/Models/BaseMaterialsModel.py b/cura/Machines/Models/BaseMaterialsModel.py
index 4759c8b5b0..4d0b9eea36 100644
--- a/cura/Machines/Models/BaseMaterialsModel.py
+++ b/cura/Machines/Models/BaseMaterialsModel.py
@@ -21,10 +21,11 @@ class BaseMaterialsModel(ListModel):
     MaterialRole = Qt.UserRole + 5
     ColorRole = Qt.UserRole + 6
     ContainerNodeRole = Qt.UserRole + 7
+    CompatibleRole = Qt.UserRole + 8
 
     extruderPositionChanged = pyqtSignal()
 
-    def __init__(self, parent = None):
+    def __init__(self, parent = None) -> None:
         super().__init__(parent)
         self._application = Application.getInstance()
         self._machine_manager = self._application.getMachineManager()
@@ -36,6 +37,7 @@ class BaseMaterialsModel(ListModel):
         self.addRoleName(self.MaterialRole, "material")
         self.addRoleName(self.ColorRole, "color_name")
         self.addRoleName(self.ContainerNodeRole, "container_node")
+        self.addRoleName(self.CompatibleRole, "compatible")
 
         self._extruder_position = 0
         self._extruder_stack = None
diff --git a/cura/Machines/Models/BrandMaterialsModel.py b/cura/Machines/Models/BrandMaterialsModel.py
index 236f105d12..5adc3d10fd 100644
--- a/cura/Machines/Models/BrandMaterialsModel.py
+++ b/cura/Machines/Models/BrandMaterialsModel.py
@@ -122,7 +122,8 @@ class BrandMaterialsModel(ListModel):
                     "brand": metadata["brand"],
                     "material": metadata["material"],
                     "color_name": metadata["color_name"],
-                    "container_node": container_node
+                    "container_node": container_node,
+                    "compatible": metadata.get("compatible", "unknown")
                     }
             brand_group_dict[brand][material_type].append(item)
 
diff --git a/cura/Machines/Models/GenericMaterialsModel.py b/cura/Machines/Models/GenericMaterialsModel.py
index 2fac919f3e..48f4c4ea50 100644
--- a/cura/Machines/Models/GenericMaterialsModel.py
+++ b/cura/Machines/Models/GenericMaterialsModel.py
@@ -19,7 +19,7 @@ class GenericMaterialsModel(BaseMaterialsModel):
         self._material_manager.materialsUpdated.connect(self._update) #Update when the list of materials changes.
         self._update()
 
-    def _update(self):
+    def _update(self) -> None:
         Logger.log("d", "Updating {model_class_name}.".format(model_class_name = self.__class__.__name__))
 
         global_stack = self._machine_manager.activeMachine
@@ -51,7 +51,8 @@ class GenericMaterialsModel(BaseMaterialsModel):
                     "brand": metadata["brand"],
                     "material": metadata["material"],
                     "color_name": metadata["color_name"],
-                    "container_node": container_node
+                    "container_node": container_node,
+                    "compatible": metadata.get("compatible", "unknown")
                     }
             item_list.append(item)
 
diff --git a/resources/qml/Menus/MaterialMenu.qml b/resources/qml/Menus/MaterialMenu.qml
index 64b3130724..c2de8f31e9 100644
--- a/resources/qml/Menus/MaterialMenu.qml
+++ b/resources/qml/Menus/MaterialMenu.qml
@@ -22,6 +22,7 @@ Menu
             text: model.name
             checkable: true
             checked: model.root_material_id == Cura.MachineManager.currentRootMaterialId[extruderIndex]
+            enabled: model.compatible
             exclusiveGroup: group
             onTriggered:
             {
diff --git a/resources/qml/SidebarHeader.qml b/resources/qml/SidebarHeader.qml
index 0e5ac852e8..d39e2b9416 100644
--- a/resources/qml/SidebarHeader.qml
+++ b/resources/qml/SidebarHeader.qml
@@ -1,5 +1,5 @@
-// Copyright (c) 2017 Ultimaker B.V.
-// Cura is released under the terms of the LGPLv3 or higher.
+//Copyright (c) 2018 Ultimaker B.V.
+//Cura is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.7
 import QtQuick.Controls 1.1
@@ -402,7 +402,7 @@ Column
             property var valueError: !isMaterialSupported()
             property var valueWarning: ! Cura.MachineManager.isActiveQualitySupported
 
-            function isMaterialSupported ()
+            function isMaterialSupported()
             {
                 if (!hasActiveExtruder)
                 {