diff --git a/cura/Machines/MachineNode.py b/cura/Machines/MachineNode.py
index 88736826fd..aa4db8bb8f 100644
--- a/cura/Machines/MachineNode.py
+++ b/cura/Machines/MachineNode.py
@@ -14,6 +14,7 @@ from cura.Machines.QualityChangesGroup import QualityChangesGroup  # To construc
 from cura.Machines.QualityGroup import QualityGroup  # To construct groups of quality profiles that belong together.
 from cura.Machines.QualityNode import QualityNode
 from cura.Machines.VariantNode import VariantNode
+from cura.Machines.MaterialNode import MaterialNode
 import UM.FlameProfiler
 
 
@@ -167,13 +168,20 @@ class MachineNode(ContainerNode):
 
         return self.global_qualities.get(self.preferred_quality_type, next(iter(self.global_qualities.values())))
 
+    def isExcludedMaterial(self, material: MaterialNode) -> bool:
+        """Returns whether the material should be excluded from the list of materials."""
+        for exclude_material in self.exclude_materials:
+            if exclude_material in material["id"]:
+                return True
+        return False
+
     @UM.FlameProfiler.profile
     def _loadAll(self) -> None:
         """(Re)loads all variants under this printer."""
 
         container_registry = ContainerRegistry.getInstance()
         if not self.has_variants:
-            self.variants["empty"] = VariantNode("empty_variant", machine = self)
+            self.variants["empty"] = VariantNode("empty_variant", machine=self)
             self.variants["empty"].materialsChanged.connect(self.materialsChanged)
         else:
             # Find all the variants for this definition ID.
diff --git a/cura/Machines/VariantNode.py b/cura/Machines/VariantNode.py
index 39664946a3..6c3e9359d0 100644
--- a/cura/Machines/VariantNode.py
+++ b/cura/Machines/VariantNode.py
@@ -60,7 +60,7 @@ class VariantNode(ContainerNode):
             materials = list(materials_per_base_file.values())
 
         # Filter materials based on the exclude_materials property.
-        filtered_materials = [material for material in materials if material["id"] not in self.machine.exclude_materials]
+        filtered_materials = [material for material in materials if not self.machine.isExcludedMaterial(material)]
 
         for material in filtered_materials:
             base_file = material["base_file"]
diff --git a/resources/definitions/ultimaker2_plus_connect.def.json b/resources/definitions/ultimaker2_plus_connect.def.json
index 2e7a98fdd6..dc55d8febf 100644
--- a/resources/definitions/ultimaker2_plus_connect.def.json
+++ b/resources/definitions/ultimaker2_plus_connect.def.json
@@ -20,6 +20,9 @@
             "ultimaker_tough_pla_green",
             "ultimaker_tough_pla_red",
             "ultimaker_tough_pla_white",
+            "ultimaker_tough_pla_blue",
+            "ultimaker_tough_pla_gray",
+            "ultimaker_tough_pla_yellow",
             "generic_cffcpe",
             "generic_cffpa",
             "generic_gffcpe",
diff --git a/tests/Machines/TestVariantNode.py b/tests/Machines/TestVariantNode.py
index 7f06ad468c..e15d64a444 100644
--- a/tests/Machines/TestVariantNode.py
+++ b/tests/Machines/TestVariantNode.py
@@ -46,6 +46,7 @@ def getInstanceContainerSideEffect(*args, **kwargs):
 def machine_node():
     mocked_machine_node = MagicMock()
     mocked_machine_node.container_id = "machine_1"
+    mocked_machine_node.isExcludedMaterial = MagicMock(return_value=False)
     mocked_machine_node.preferred_material = "preferred_material"
     return mocked_machine_node
 
@@ -95,6 +96,7 @@ def test_variantNodeInit(container_registry, machine_node):
 
 def test_variantNodeInit_excludedMaterial(container_registry, machine_node):
     machine_node.exclude_materials = ["material_1"]
+    machine_node.isExcludedMaterial = MagicMock(side_effect=lambda material: material["id"] == "material_1")
     node = createVariantNode("variant_1", machine_node, container_registry)
 
     assert "material_1" not in node.materials