diff --git a/src/PowderCoating.Web/Controllers/InventoryController.cs b/src/PowderCoating.Web/Controllers/InventoryController.cs
index 0cadef0..34305e0 100644
--- a/src/PowderCoating.Web/Controllers/InventoryController.cs
+++ b/src/PowderCoating.Web/Controllers/InventoryController.cs
@@ -679,6 +679,7 @@ public class InventoryController : Controller
             return Json(new { success = false, errorMessage = "AI Inventory Assist is not enabled for your account. Contact your administrator." });
 
         var result = await _aiLookupService.LookupAsync(manufacturer, colorName, colorCode, partNumber);
+        if (result.Success) await ApplyTdsCureFallbackAsync(result, colorName);
         return Json(result);
     }
 
@@ -701,9 +702,31 @@ public class InventoryController : Controller
             return Json(new { success = false, errorMessage = "No product URL provided." });
 
         var result = await _aiLookupService.LookupByUrlAsync(productUrl, colorName);
+        if (result.Success) await ApplyTdsCureFallbackAsync(result, colorName);
         return Json(result);
     }
 
+    /// <summary>
+    /// If cure temperature or cure time is still missing after the primary lookup but a TDS URL
+    /// was returned, fetches that page and asks Claude to extract only the cure schedule.
+    /// Mutates <paramref name="result"/> in place; silently no-ops on failure so callers
+    /// can always return the result even if the TDS fetch does not help.
+    /// </summary>
+    private async Task ApplyTdsCureFallbackAsync(InventoryAiLookupResult result, string? colorName)
+    {
+        if ((result.CureTemperatureF == null || result.CureTimeMinutes == null)
+            && !string.IsNullOrEmpty(result.TdsUrl))
+        {
+            _logger.LogInformation("Cure specs missing after lookup; trying TDS at {Url}", result.TdsUrl);
+            var tds = await _aiLookupService.FetchTdsCureSpecsAsync(result.TdsUrl, colorName);
+            if (tds.Success)
+            {
+                if (result.CureTemperatureF == null) result.CureTemperatureF = tds.CureTemperatureF;
+                if (result.CureTimeMinutes  == null) result.CureTimeMinutes  = tds.CureTimeMinutes;
+            }
+        }
+    }
+
     /// <summary>
     /// Accepts a base64 label photo or a decoded QR URL from the in-browser label scanner,
     /// runs it through Claude (vision for photos, URL-fetch for QR), searches the platform
@@ -834,22 +857,14 @@ public class InventoryController : Controller
             }
         }
 
-        // If cure specs are still missing but we have a TDS URL, fetch it and try to extract
-        // cure temperature and cure time. Most TDS pages are HTML; PDFs fail silently.
-        var resolvedCureTemp = catalogMatch?.CureTemperatureF ?? aiResult.CureTemperatureF;
-        var resolvedCureTime = catalogMatch?.CureTimeMinutes  ?? aiResult.CureTimeMinutes;
-        var resolvedTdsUrl   = catalogMatch?.TdsUrl ?? aiResult.TdsUrl;
-
-        if ((resolvedCureTemp == null || resolvedCureTime == null) && !string.IsNullOrEmpty(resolvedTdsUrl))
-        {
-            _logger.LogInformation("Cure specs missing after main lookup; trying TDS at {Url}", resolvedTdsUrl);
-            var tdsResult = await _aiLookupService.FetchTdsCureSpecsAsync(resolvedTdsUrl, colorName);
-            if (tdsResult.Success)
-            {
-                if (resolvedCureTemp == null) aiResult.CureTemperatureF = tdsResult.CureTemperatureF;
-                if (resolvedCureTime == null) aiResult.CureTimeMinutes  = tdsResult.CureTimeMinutes;
-            }
-        }
+        // If cure specs are still missing but we have a TDS URL, try reading it.
+        // Prefer the catalog's TDS URL if present; the catalog record is more reliable.
+        // Temporarily merge the catalog TDS URL into aiResult so ApplyTdsCureFallbackAsync
+        // sees the best available URL and writes the result back into aiResult.
+        if (catalogMatch?.CureTemperatureF != null) aiResult.CureTemperatureF = catalogMatch.CureTemperatureF;
+        if (catalogMatch?.CureTimeMinutes  != null) aiResult.CureTimeMinutes  = catalogMatch.CureTimeMinutes;
+        aiResult.TdsUrl ??= catalogMatch?.TdsUrl;
+        await ApplyTdsCureFallbackAsync(aiResult, colorName);
 
         // Check if this product already exists in the tenant's inventory.
         // Match by ManufacturerPartNumber first (most precise); fall back to color name + manufacturer.
diff --git a/src/PowderCoating.Web/Views/Inventory/_InventoryColorFamilyScripts.cshtml b/src/PowderCoating.Web/Views/Inventory/_InventoryColorFamilyScripts.cshtml
index 7b968d4..4dba788 100644
--- a/src/PowderCoating.Web/Views/Inventory/_InventoryColorFamilyScripts.cshtml
+++ b/src/PowderCoating.Web/Views/Inventory/_InventoryColorFamilyScripts.cshtml
@@ -450,6 +450,21 @@
                 aiFilledImage = true;
             }
 
+            // SDS / TDS document URLs — fill inputs and show open-link buttons
+            const fillDocUrl = (fieldId, linkId, url, label) => {
+                if (!url) return;
+                const el   = document.getElementById(fieldId);
+                const link = document.getElementById(linkId);
+                if (el && (forceRefill || !el.value.trim())) {
+                    el.value = url;
+                    filled.push(label);
+                    if (!aiFilledFields.includes(fieldId)) aiFilledFields.push(fieldId);
+                }
+                if (link) { link.href = url; link.classList.remove('d-none'); }
+            };
+            fillDocUrl('field-sdsurl', 'field-sdsurl-link', data.sdsUrl, 'SDS');
+            fillDocUrl('field-tdsurl', 'field-tdsurl-link', data.tdsUrl, 'TDS');
+
             // Build a persistent "needs more info" tip if key identity fields are still unknown
             const missingHints = [];
             if (!data.manufacturer && !document.getElementById('field-manufacturer')?.value?.trim())