diff --git a/changelog.txt b/changelog.txt
index 801c2c9..8348d42 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,10 @@
 ---------------------------------------------------------------------------------------------------
+Version: 0.1.6
+Date: 2022-08-19
+  Changes:
+    - When used with Aluminum but not Lead, add new solder tech after copper-processing.
+    - Minor recipe tweaks, including simpler pipe to ground 
+---------------------------------------------------------------------------------------------------
 Version: 0.1.5
 Date: 2022-08-17
   Fixes:
diff --git a/info.json b/info.json
index 95c2af2..4b073ea 100644
--- a/info.json
+++ b/info.json
@@ -1,6 +1,6 @@
 {
     "name": "bztin",
-    "version": "0.1.5",
+    "version": "0.1.6",
     "factorio_version": "1.1",
     "title": "Tin",
     "author": "Brevven",
diff --git a/locale/en/tin.cfg b/locale/en/tin.cfg
index 53e6114..21d7017 100644
--- a/locale/en/tin.cfg
+++ b/locale/en/tin.cfg
@@ -28,6 +28,7 @@ tinned-cable=Tinned cable
 organotin-chemistry=Organotin chemistry
 tin-matter-processing=Tin conversion
 glassmaking=Glassmaking
+solder=__ITEM__solder__
 
 [technology-description]
 tinned-cable=Tinned copper cables to prevent corrosion
diff --git a/tin-recipe-updates.lua b/tin-recipe-updates.lua
index cfbeecc..8f93bf4 100644
--- a/tin-recipe-updates.lua
+++ b/tin-recipe-updates.lua
@@ -10,8 +10,7 @@ util.add_ingredient("slowdown-capsule", "organotins", 5)
 util.set_category("poison-capsule", "crafting-with-fluid")
 util.set_category("slowdown-capsule", "crafting-with-fluid")
 
-util.replace_some_ingredient("pipe-to-ground", "lead-plate", 3, "solder", 3)
-util.replace_some_ingredient("pipe-to-ground", "iron-plate", 3, "solder", 3)
+util.replace_ingredient("pipe-to-ground", mods.bzlead and "lead-plate" or "iron-plate", "solder", 4)
 util.remove_ingredient("chemical-plant", "tungsten-plate")   -- keep ingredients managable
 
 util.replace_some_ingredient("advanced-circuit", "copper-cable", 1, "solder", 1)
@@ -158,6 +157,7 @@ if util.me.use_bronze() then
   util.add_ingredient("electric-engine-unit", "bronze-plate", 1)
 
   util.replace_some_ingredient("se-heavy-bearing", "se-iridium-plate", 1, "bronze-plate", 1)
+
 end
 
 
diff --git a/tin-recipe.lua b/tin-recipe.lua
index 83d51f4..13c64e9 100644
--- a/tin-recipe.lua
+++ b/tin-recipe.lua
@@ -85,6 +85,29 @@ data:extend({
   }
 })
 
+if mods.bzaluminum and not mods.bzlead then
+  data:extend({
+  {
+    type = "technology",
+    name = "solder",
+    icon = "__bztin__/graphics/icons/solder.png",
+    icon_size = 128,
+    effects = {
+      { type = "unlock-recipe", recipe = "solder" },
+      { type = "unlock-recipe", recipe = "pipe-to-ground" },
+    },
+    unit = {
+      count = 10, time = 15,
+      ingredients = {{"automation-science-pack", 1}},
+    },
+    prerequisites = {"copper-processing"},
+  },
+  })
+  util.add_unlock_force("solder", "pipe-to-ground")
+  util.add_unlock_force("solder", "solder")
+  util.add_prerequisite("electronics", "solder")
+end
+
 data:extend({
   {
     type = "fluid",