diff --git a/src/main/java/gregtech/api/unification/material/materials/ElementMaterials.java b/src/main/java/gregtech/api/unification/material/materials/ElementMaterials.java
index 9814f07bd18..63a6db57cc2 100644
--- a/src/main/java/gregtech/api/unification/material/materials/ElementMaterials.java
+++ b/src/main/java/gregtech/api/unification/material/materials/ElementMaterials.java
@@ -846,7 +846,7 @@ public static void register() {
                 .build();
 
         Tin = new Material.Builder(112, "tin")
-                .ingot(1).fluid().ore()
+                .ingot(1).fluid(FluidType.FLUID, true).ore()
                 .color(0xDCDCDC)
                 .flags(EXT2_METAL, MORTAR_GRINDABLE, GENERATE_ROTOR, GENERATE_SPRING, GENERATE_SPRING_SMALL)
                 .element(Elements.Sn)
diff --git a/src/main/java/gregtech/client/utils/RenderUtil.java b/src/main/java/gregtech/client/utils/RenderUtil.java
index f967c85ed5d..6300dbe2d52 100644
--- a/src/main/java/gregtech/client/utils/RenderUtil.java
+++ b/src/main/java/gregtech/client/utils/RenderUtil.java
@@ -522,7 +522,8 @@ public static void drawFluidForGui(FluidStack contents, int tankCapacity, int st
         }
         GlStateManager.enableBlend();
         Minecraft.getMinecraft().renderEngine.bindTexture(TextureMap.LOCATION_BLOCKS_TEXTURE);
-        setGlColorFromInt(fluidColor, 200);
+        // fluid is RGBA for GT guis, despite MC's fluids being ARGB
+        setGlColorFromInt(fluidColor, fluidColor & 0x000000FF);
 
         final int xTileCount = widthT / 16;
         final int xRemainder = widthT - xTileCount * 16;
@@ -553,16 +554,16 @@ public static int packColor(int red, int green, int blue, int alpha) {
     }
 
     public static void setGlColorFromInt(int colorValue, int opacity) {
-        int i = (colorValue & 16711680) >> 16;
-        int j = (colorValue & 65280) >> 8;
-        int k = (colorValue & 255);
+        int i = (colorValue & 0xFF0000) >> 16;
+        int j = (colorValue & 0xFF00) >> 8;
+        int k = (colorValue & 0xFF);
         GlStateManager.color(i / 255.0f, j / 255.0f, k / 255.0f, opacity / 255.0f);
     }
 
     public static void setGlClearColorFromInt(int colorValue, int opacity) {
-        int i = (colorValue & 16711680) >> 16;
-        int j = (colorValue & 65280) >> 8;
-        int k = (colorValue & 255);
+        int i = (colorValue & 0xFF0000) >> 16;
+        int j = (colorValue & 0xFF00) >> 8;
+        int k = (colorValue & 0xFF);
         GlStateManager.clearColor(i / 255.0f, j / 255.0f, k / 255.0f, opacity / 255.0f);
     }
 
diff --git a/src/main/java/gregtech/common/MetaFluids.java b/src/main/java/gregtech/common/MetaFluids.java
index 36dd5899fec..76944f6bc26 100644
--- a/src/main/java/gregtech/common/MetaFluids.java
+++ b/src/main/java/gregtech/common/MetaFluids.java
@@ -301,7 +301,7 @@ public static Fluid registerFluid(Material material, FluidType fluidType, int te
             if (material.hasFluidColor())
                 fluid.setColor(GTUtility.convertRGBtoOpaqueRGBA_MC(material.getMaterialRGB()));
             else
-                fluid.setColor(GTUtility.convertRGBtoOpaqueRGBA_MC(0xFFFFFF));
+                fluid.setColor(0xFFFFFFFF);
 
             // set properties and register
             setStateProperties(fluid, fluidState);