diff --git a/hot-metals/changelog.txt b/hot-metals/changelog.txt
index 5f2b7be..0812e56 100644
--- a/hot-metals/changelog.txt
+++ b/hot-metals/changelog.txt
@@ -1,38 +1,62 @@
----------------------------------------------------------------------------------------------------
-Version: 1.2.2
-Date: 02.02.2025
-  Changes:
-    - Recipes always output "fresh" hot metals (https://mods.factorio.com/mod/hot-metals/discussion/6775293c1c4d7b0e4bba8648)
-    - Recipe code now also works if the main result is not the first result in the results list
----------------------------------------------------------------------------------------------------
-Version: 1.2.1
-Date: 09.01.2025
-  Changes:
-    - Add hot stone bricks and hot concrete (https://mods.factorio.com/mod/hot-metals/discussion/677fdef8d37eef8332fa6c2f)
-    - Biochambers don't generate hot plastic (https://mods.factorio.com/mod/hot-metals/discussion/675af47f1fba71716b2b7f7f)
----------------------------------------------------------------------------------------------------
-Version: 1.2.0
-Date: 01.01.2025
-  Changes:
-    - Add support for custom icons (https://mods.factorio.com/mod/hot-metals/discussion/6773ea5e1c4d7b0e4bba85b6)
-    - Add hot plastic (https://mods.factorio.com/mod/hot-metals/discussion/675af47f1fba71716b2b7f7f)
-  Bug Fixes:
-    - Support main_product (https://mods.factorio.com/mod/hot-metals/discussion/6773e919c568cd84f3f0884f)
----------------------------------------------------------------------------------------------------
-Version: 1.1.1
-Date: 21.12.2024
-  Bug Fixes:
-    - Fixed labels for hot pipe and underground pipe items and recipes (https://mods.factorio.com/mod/hot-metals/discussion/67493d0742705fa9914f61ca)
-    - Fixed technology triggers being replaced for items that have non-hot early game recipes (https://mods.factorio.com/mod/hot-metals/discussion/676668fb9ce172be6c25f87a)
----------------------------------------------------------------------------------------------------
-Version: 1.1.0
-Date: 03.12.2024
-  Changes:
-    - Added support for Vanilla (you still need to purchase Space Age)
-    - Added support for AAI Industry
-    - Added modding support
-    - Removed Low density structure from the list because of https://forums.factorio.com/viewtopic.php?f=7&t=123081
-  Bug Fixes:
-    - Fixed research triggers that use metals with hot variants
-    - Fixed missing recipe names
+---------------------------------------------------------------------------------------------------
+Version: 1.2.6
+Date: 18.04.2025
+  Changes:
+    - Add polish translation (I forgot who did it :-( )
+    - Move technology changes to final fixes stage
+---------------------------------------------------------------------------------------------------
+Version: 1.2.5
+Date: 04.02.2025
+  Changes:
+    - Add Low density structure again after Wube fixed a bug (https://forums.factorio.com/123081)
+    - Add support for Muluna (Aluminum plate)
+---------------------------------------------------------------------------------------------------
+Version: 1.2.4
+Date: 03.02.2025
+  Bug Fixes:
+    - Fix item weights (many items weights where way off)
+---------------------------------------------------------------------------------------------------
+Version: 1.2.3
+Date: 03.02.2025
+  Changes:
+    - Use non-hot icon variants for the recipes
+  Bug Fixes:
+    - Properly load cf-lib util
+---------------------------------------------------------------------------------------------------
+Version: 1.2.2
+Date: 02.02.2025
+  Changes:
+    - Recipes always output "fresh" hot metals (https://mods.factorio.com/mod/hot-metals/discussion/6775293c1c4d7b0e4bba8648)
+    - Recipe code now also works if the main result is not the first result in the results list
+---------------------------------------------------------------------------------------------------
+Version: 1.2.1
+Date: 09.01.2025
+  Changes:
+    - Add hot stone bricks and hot concrete (https://mods.factorio.com/mod/hot-metals/discussion/677fdef8d37eef8332fa6c2f)
+    - Biochambers don't generate hot plastic (https://mods.factorio.com/mod/hot-metals/discussion/675af47f1fba71716b2b7f7f)
+---------------------------------------------------------------------------------------------------
+Version: 1.2.0
+Date: 01.01.2025
+  Changes:
+    - Add support for custom icons (https://mods.factorio.com/mod/hot-metals/discussion/6773ea5e1c4d7b0e4bba85b6)
+    - Add hot plastic (https://mods.factorio.com/mod/hot-metals/discussion/675af47f1fba71716b2b7f7f)
+  Bug Fixes:
+    - Support main_product (https://mods.factorio.com/mod/hot-metals/discussion/6773e919c568cd84f3f0884f)
+---------------------------------------------------------------------------------------------------
+Version: 1.1.1
+Date: 21.12.2024
+  Bug Fixes:
+    - Fixed labels for hot pipe and underground pipe items and recipes (https://mods.factorio.com/mod/hot-metals/discussion/67493d0742705fa9914f61ca)
+    - Fixed technology triggers being replaced for items that have non-hot early game recipes (https://mods.factorio.com/mod/hot-metals/discussion/676668fb9ce172be6c25f87a)
+---------------------------------------------------------------------------------------------------
+Version: 1.1.0
+Date: 03.12.2024
+  Changes:
+    - Added support for Vanilla (you still need to purchase Space Age)
+    - Added support for AAI Industry
+    - Added modding support
+    - Removed Low density structure from the list because of https://forums.factorio.com/viewtopic.php?f=7&t=123081
+  Bug Fixes:
+    - Fixed research triggers that use metals with hot variants
+    - Fixed missing recipe names
     - Fixed Holmium
\ No newline at end of file
diff --git a/hot-metals/compatibility/data.lua b/hot-metals/compatibility/data.lua
index 2e9db77..c6bd480 100644
--- a/hot-metals/compatibility/data.lua
+++ b/hot-metals/compatibility/data.lua
@@ -1,6 +1,7 @@
 local modList = {
     "space-age",
-    "aai-industry"
+    "aai-industry",
+    "planet-muluna"
 }
 
 for _, mod in pairs(modList) do
diff --git a/hot-metals/compatibility/planet-muluna.lua b/hot-metals/compatibility/planet-muluna.lua
new file mode 100644
index 0000000..45afcd8
--- /dev/null
+++ b/hot-metals/compatibility/planet-muluna.lua
@@ -0,0 +1 @@
+table.insert(HotMetals.items, "aluminum-plate")
\ No newline at end of file
diff --git a/hot-metals/compatibility/space-age.lua b/hot-metals/compatibility/space-age.lua
index 2cdad45..1cc643d 100644
--- a/hot-metals/compatibility/space-age.lua
+++ b/hot-metals/compatibility/space-age.lua
@@ -5,8 +5,7 @@ table.insert(HotMetals.items, "iron-stick")
 table.insert(HotMetals.items, "pipe")
 table.insert(HotMetals.items, "pipe-to-ground")
 table.insert(HotMetals.items, "tungsten-plate")
--- Disabled because of https://forums.factorio.com/viewtopic.php?f=7&t=123081
---table.insert(HotMetals.items, "low-density-structure")
+table.insert(HotMetals.items, "low-density-structure")
 
 table.insert(HotMetals.craftingCategories, "metallurgy")
 table.insert(HotMetals.craftingCategories, "crafting-with-fluid-or-metallurgy")
diff --git a/hot-metals/data-final-fixes.lua b/hot-metals/data-final-fixes.lua
new file mode 100644
index 0000000..5a61b06
--- /dev/null
+++ b/hot-metals/data-final-fixes.lua
@@ -0,0 +1 @@
+require("prototypes/hot-metals-final")
\ No newline at end of file
diff --git a/hot-metals/data.lua b/hot-metals/data.lua
index 1eb128b..40da972 100644
--- a/hot-metals/data.lua
+++ b/hot-metals/data.lua
@@ -2,7 +2,7 @@ HotMetals = {
     items = {
         "copper-plate",
         "iron-plate",
-        "steel-plate",
+        "steel-plate"
     },
     craftingCategories = {
         "smelting"
@@ -10,6 +10,8 @@ HotMetals = {
     skipTechUnlocksFor = {}
 }
 
+require("__cf-lib__/util")
+
 if settings.startup["hot-metals-plastic"].value then
     table.insert(HotMetals.items, "plastic-bar")
     if not mods["space-age"] then -- Space age uses other crafting categories
diff --git a/hot-metals/graphics/icons/hot-aluminum-plate.png b/hot-metals/graphics/icons/hot-aluminum-plate.png
new file mode 100644
index 0000000..d131aec
Binary files /dev/null and b/hot-metals/graphics/icons/hot-aluminum-plate.png differ
diff --git a/hot-metals/info.json b/hot-metals/info.json
index 87f37b7..3f19979 100644
--- a/hot-metals/info.json
+++ b/hot-metals/info.json
@@ -1,14 +1,14 @@
-{
-   "name": "hot-metals",
-   "version": "1.2.2",
-   "title": "Hot metals",
-   "description": "A furnace doesn't just output cold usable results. You need to wait for them to cool down.",
-   "author": "cackling fiend",
-   "homepage": "",
-   "factorio_version": "2.0",
-   "dependencies": [
-      "base",
-      "cf-lib >= 0.0.2"
-   ],
-   "spoiling_required": true
+{
+   "name": "hot-metals",
+   "version": "1.2.6",
+   "title": "Hot metals",
+   "description": "A furnace doesn't just output cold usable results. You need to wait for them to cool down.",
+   "author": "cackling fiend",
+   "homepage": "",
+   "factorio_version": "2.0",
+   "dependencies": [
+      "base",
+      "cf-lib >= 0.0.2"
+   ],
+   "spoiling_required": true
 }
\ No newline at end of file
diff --git a/hot-metals/locale/pl/strings.cfg b/hot-metals/locale/pl/strings.cfg
new file mode 100644
index 0000000..01c6fa9
--- /dev/null
+++ b/hot-metals/locale/pl/strings.cfg
@@ -0,0 +1,12 @@
+[item-name]
+hot=Hot
+
+[mod-setting-name]
+hot-metals-time=Czas stygnięcia 
+hot-metals-plastic=Dodaj gorący plastik
+hot-metals-bricks=dodaj gorące kamienne cegły i beton
+
+[mod-setting-description]
+hot-metals-time=Czas w sekundach, jaki jest potrzebny, aby gorący przedmiot ostygł.  
+hot-metals-plastic=Chociaż temperatura gorącego plastiku jest znacznie niższa w porównaniu do metali, możesz chcieć mieć jego gorącą wersję.  
+hot-metals-bricks=Kamienne cegły i beton nie są domyślnie uwzględnione. Jeśli lubisz grać z gorącymi wariantami, możesz włączyć tę opcję.
\ No newline at end of file
diff --git a/hot-metals/prototypes/hot-metals-final.lua b/hot-metals/prototypes/hot-metals-final.lua
new file mode 100644
index 0000000..7b42417
--- /dev/null
+++ b/hot-metals/prototypes/hot-metals-final.lua
@@ -0,0 +1,9 @@
+-- Change technology triggers
+for _, tech in pairs(data.raw.technology) do
+    if tech.research_trigger then
+        local item = data.raw.item[tech.research_trigger.item]
+        if item and item.hot_item and not contains(HotMetals.skipTechUnlocksFor, item.name) then
+            tech.research_trigger.item = item.hot_item
+        end
+    end
+end
\ No newline at end of file
diff --git a/hot-metals/prototypes/hot-metals.lua b/hot-metals/prototypes/hot-metals.lua
index 296fa85..03e55e3 100644
--- a/hot-metals/prototypes/hot-metals.lua
+++ b/hot-metals/prototypes/hot-metals.lua
@@ -1,30 +1,83 @@
 local defaultSpoilTicks = settings.startup["hot-metals-time"].value * 60
 
-function createHotVariant(item)
-    local itemName = item
+---@param name data.ItemID
+---@return data.ItemPrototype?
+function getItem(name)
+    if data.raw.item[name] then
+        return data.raw.item[name] --[[@as data.ItemPrototype]]
+    end
+    for item_type in pairs(defines.prototypes.item) do
+        local type_lookup = data.raw[item_type]
+        if type_lookup and type_lookup[name] then
+            return type_lookup[name] --[[@as data.ItemPrototype]]
+        end
+    end
+end
+
+---@param table item
+---@return number
+function getWeight(item)
+    if type(item) == "string" then
+        item = getItem(item)
+    end
+    if item.weight then return item.weight end
+    local factor = item.ingredient_to_weight_coefficient or 0.5
+    for _, recipe in pairs(data.raw.recipe) do
+        if recipe.results == nil then
+            goto continue
+        end
+        local function isResultMatch(result)
+            return result.name == item.name
+        end
+        local results = table.filter(recipe.results, isResultMatch)
+        if #results > 0 then
+            for _, ingredient in pairs(recipe.ingredients) do
+                if ingredient.type == "item" then
+                    local weight = data.raw.item[ingredient.name].weight or getWeight(data.raw.item[ingredient.name])
+                    local amount = ingredient.amount
+                    if ingredient.amount_min and ingredient.amount_max then
+                        amount = (ingredient.amount_min + ingredient.amount_max) / 2
+                    end
+                    return amount * weight * factor
+                end
+            end
+        end
+        ::continue::
+    end
+    return 100
+end
+
+function createHotVariant(config)
+    local itemName = config
     local spoilTicks = defaultSpoilTicks
     local iconFolder = "__hot-metals__/graphics/icons/"
 
-    if type(item) == "table" then
-        itemName = item.name
-        spoilTicks = item.spoilTicks or spoilTicks
-        iconFolder = item.iconFolder or iconFolder
+    if type(config) == "table" then
+        itemName = config.name
+        spoilTicks = config.spoilTicks or spoilTicks
+        iconFolder = config.iconFolder or iconFolder
     end
+    local item = data.raw.item[itemName]
+    item.weight = getWeight(item)
 
     -- Create new item
     local hotItem = table.deepcopy(data.raw.item[itemName])
     hotItem.name = "hot-" .. itemName
     hotItem.localised_name = { "", { "item-name.hot" }, " ", { "item-name." .. itemName } }
-    if (item.icons) then
-        hotItem.icons = item.icons
+    if (config.icons) then
+        hotItem.icons = config.icons
     else
         hotItem.icon = iconFolder .. "hot-" .. itemName .. ".png"
     end
     hotItem.order = hotItem.order .. "-hot"
+    hotItem.ingredient_to_weight_coefficient = item.ingredient_to_weight_coefficient
+    hotItem.weight = item.weight
     hotItem.spoil_result = itemName
     hotItem.spoil_ticks = spoilTicks
     data:extend({ hotItem })
 
+    item.hot_item = hotItem.name
+
     -- Change recipes
     for _, recipe in pairs(data.raw.recipe) do
         if contains(HotMetals.craftingCategories, recipe.category) then
@@ -33,25 +86,23 @@ function createHotVariant(item)
             end
             local results = table.filter(recipe.results, isResultMatch)
             if #results > 0 then
+                -- Change regular recipe to be the "hot" recipe
                 for _, result in pairs(results) do
                     result.name = hotItem.name
                 end
                 recipe.localised_name = { "item-name." .. itemName }
+                recipe.icon = recipe.icon or item.icon
+                recipe.icon_size = recipe.icon_size or item.icon_size
+                recipe.icons = recipe.icons or item.icons
                 if recipe.main_product == itemName then
                     recipe.main_product = hotItem.name
                 end
+
                 recipe.preserve_products_in_machine_output = true
                 recipe.result_is_always_fresh = true
             end
         end
     end
-
-    -- Change technology triggers
-    for _, tech in pairs(data.raw.technology) do
-        if tech.research_trigger and tech.research_trigger.item == itemName and not contains(HotMetals.skipTechUnlocksFor, itemName) then
-            tech.research_trigger.item = hotItem.name
-        end
-    end
 end
 
 -- Checks if a table contains a certain value
diff --git a/sources/hot-aluminum-plate.afphoto b/sources/hot-aluminum-plate.afphoto
new file mode 100644
index 0000000..18cb24b
Binary files /dev/null and b/sources/hot-aluminum-plate.afphoto differ
diff --git a/sources/hot-iron-plate.afphoto b/sources/hot-iron-plate.afphoto
index 3b646b3..9d56f11 100644
Binary files a/sources/hot-iron-plate.afphoto and b/sources/hot-iron-plate.afphoto differ