diff --git a/src/Add-on/LookOverBoardInfos/LookOverBoardInfosTool.ts b/src/Add-on/LookOverBoardInfos/LookOverBoardInfosTool.ts
index 8a2bea350..083d313d8 100644
--- a/src/Add-on/LookOverBoardInfos/LookOverBoardInfosTool.ts
+++ b/src/Add-on/LookOverBoardInfos/LookOverBoardInfosTool.ts
@@ -250,12 +250,14 @@ class LookOverBoardInfosTool
             //封边留头量
             let sealReserve = HostApplicationServices.sealReserve * 2;
 
+            let thickness = this.GetBoardThickness(br);
+
             for (let data of sealData)
             {
                 if (equaln(0, data.size)) continue;
                 data.length += sealReserve;
 
-                let k = `${data.size}-${FixedNotZero(br.Thickness, 2)}-${color}`;
+                let k = `${data.size}-${FixedNotZero(thickness, 2)}-${color}`;
                 if (options && options.sealGruopKey)
                 {
                     options.sealGruopKey(k, br, data.size);