diff --git a/src/components/viewer3d/ModelViewer3D.tsx b/src/components/viewer3d/ModelViewer3D.tsx
index 8c9b224..d745452 100644
--- a/src/components/viewer3d/ModelViewer3D.tsx
+++ b/src/components/viewer3d/ModelViewer3D.tsx
@@ -247,6 +247,14 @@ export const ModelViewer3D: React.FC<ModelViewer3DProps> = ({
               }
             }
           }
+
+          // Debug log (somente primeira vez para as primeiras 5 peças para não travar o console)
+          if ((window as any)._debugIfcColors === undefined) (window as any)._debugIfcColors = 0;
+          if ((window as any)._debugIfcColors < 10) {
+            console.log(`[IFC Color Debug] IFC pmark: "${pmark}" -> DB match:`, prod ? `Achou! Marca DB: "${prod.marca}", Qtd: ${prod.pointedQtd}, Cor: ${prod.processColor}` : `NÃO ACHOU. Chaves disponíveis: ${Array.from(productionData.keys()).slice(0,5).join(', ')}...`);
+            (window as any)._debugIfcColors++;
+          }
+
           if (prod && prod.pointedQtd > 0) {
             // Apply stage color (e.g., Light Green #4ade80 for pointed)
             const stageHex = prod.processColor || '#4ade80';
diff --git a/src/lib/ifc/ifcLoaderService.ts b/src/lib/ifc/ifcLoaderService.ts
index 9a0e15e..0b5b3e5 100644
--- a/src/lib/ifc/ifcLoaderService.ts
+++ b/src/lib/ifc/ifcLoaderService.ts
@@ -133,8 +133,9 @@ export async function loadAndAuditIFC(
   // 3. Open Model
   if (onProgress) onProgress(40, 'Decodificando entidades IFC...');
   const modelID = ifcApi.OpenModel(data, {
-    COORDINATE_TO_ORIGIN: true
-  });
+    COORDINATE_TO_ORIGIN: true,
+    USE_FAST_BOOLS: true
+  } as any);
   if (modelID < 0) {
     throw new Error('Falha ao decodificar a estrutura do arquivo IFC.');
   }