diff --git a/spoolman/database/utils.py b/spoolman/database/utils.py
index 54fb3d8..3cab16f 100644
--- a/spoolman/database/utils.py
+++ b/spoolman/database/utils.py
@@ -47,7 +47,7 @@ def add_where_clause_str_opt(
         if len(value) == 0:
             stmt = stmt.where(sqlalchemy.or_(field.is_(None), field == ""))
         else:
-            stmt = stmt.where(field.ilike(f"%{value}%"))
+            stmt = stmt.where(sqlalchemy.or_(*(field.ilike(f"%{value}%") for value in value.split(","))))
     return stmt
 
 
@@ -61,7 +61,7 @@ def add_where_clause_str(
         if len(value) == 0:
             stmt = stmt.where(field == "")
         else:
-            stmt = stmt.where(field.ilike(f"%{value}%"))
+            stmt = stmt.where(sqlalchemy.or_(*(field.ilike(f"%{value}%") for value in value.split(","))))
     return stmt
 
 
diff --git a/tests_integration/tests/filament/test_find.py b/tests_integration/tests/filament/test_find.py
index 4f34fa9..4f96b4b 100644
--- a/tests_integration/tests/filament/test_find.py
+++ b/tests_integration/tests/filament/test_find.py
@@ -289,7 +289,20 @@ def test_find_filaments_by_material(filaments: Fixture):
 
     # Verify
     filaments_result = result.json()
-    assert filaments_result[0] == filaments.filaments[1]
+    assert filaments_result == [filaments.filaments[1]]
+
+
+def test_find_filaments_by_multiple_materials(filaments: Fixture):
+    # Execute
+    result = httpx.get(
+        f"{URL}/api/v1/filament",
+        params={"material": "abs,pla"},
+    )
+    result.raise_for_status()
+
+    # Verify
+    filaments_result = result.json()
+    assert filament_lists_equal(filaments_result, filaments.filaments[:2])
 
 
 def test_find_filaments_by_empty_material(filaments: Fixture):