diff --git a/notes/3D printing/Filament.md b/notes/3D printing/Filament.md
index 24528d3..98712d9 100644
--- a/notes/3D printing/Filament.md	
+++ b/notes/3D printing/Filament.md	
@@ -173,5 +173,18 @@ TPU is the most common flexible filament
 - About as hard as the sole of a running shoe
 - Good for things like bumpers or hinges
 - Still fairly easy to print
- 
- ### TPU ()
\ No newline at end of file
+### TPU (~80A)
+- Very soft
+- Prints at very low speed, can wrap itself around the drive gears
+
+# TPE (Thermoplastic Elastomer)
+
+| Pros                     | Cons                               |
+| ------------------------ | ---------------------------------- |
+| - Flexible<br>- Stretchy | - **Very** difficult to print with |
+# SEBS (Styrene Ethylene Butterine Styrene)
+TPE enhanced with the same chemicals used to make ABS.
+
+| Pros                                                       | Cons                                                                                                                                    |
+| ---------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
+| - Prints much better than TPE<br>- Very flexible and tough | - Very hygroscopic<br>- Styrene fumes released during printing<br>- Softens at a very low temp<br>- Still requires some level of tuning |