diff --git a/notes/3D printing/Filament.md b/notes/3D printing/Filament.md
index 1c96c07..678eef4 100644
--- a/notes/3D printing/Filament.md	
+++ b/notes/3D printing/Filament.md	
@@ -47,8 +47,14 @@ PCL has an extremely low melting point, printing at just 100 Celsius. The meltin
 It has a warm waxy consistency that no adhesive will stick to.
 
 # PETG/PET-G (Polyethylene terephthalate glycol)
-PETG is somewhat similar to PLA. 
 
-| Pros | Cons |
-| ---- | ---- |
-| -    |      |
+| Pros                                                                                                        | Cons                                                                                                                                        |
+| ----------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
+| - Tougher<br>- Better temperature resistance<br>- Highly transparent<br>- Very low coefficient of friction. | - Slightly more difficult to print than PLA<br>- Struggles with overhangs<br>- Struggles with support removal<br>- High humidity absorption |
+## Variants
+### PETG-CF (Carbon Fiber PETG)
+Carbon fiber stabilizes molten filament, and given that PETG struggles with overhangs, PETG-CF has massively improved print support quality, along with improved stiffness. 
+
+The combination of matte carbon fiber with shiny polyester tends to create a very unique, aesthetically pleasing finish.
+
+# PCTG
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