Update biorubber.md

docs/files/recipes/biorubber.md

-# BIORESIN
+# BIORUBBER
 
 ### Tactility & sound impression
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/gNOtGunJc2A" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/xTVABD1KlsY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
 ### Description
 
-A (naturally) amber-coloured hard bioresin, gelatin-based.
+A rubbery biopolymer based on gelatin and corn starch.
 
 ### Physical form
 
-Solids
+Surface
 
-Color without additives: transparent, yellow/orange/amber colored.
+Color without additives: yellow
 
 ### Fabrication time
 
@@ -20,18 +20,21 @@ Preparation time: 1 Hour
 
 Processing time: 5-10 days
 
-Need attention: None, just leave it to dry as long as is feasible with lots of airflow.
+Need attention: None, just leave it to dry while pressed (e.g. on a roster) as long as is feasible with lots of airflow.
 
 Final form achieved after: 10 days
 
 ## Ingredients
 
-* **Gelatine powder - 96 gr**
-	* Functions as the polymeer (so it becomes a solid)
-* **Glycerine - 16 gr**
+* **Gelatine powder - 50 gr**
+	* Functions as polymeer (so it becomes a solid)
+* **Corn starch - 50 gr**
+     * Functions as the second polymeer (so it becomes a solid)
+* **Glycerine - 50 gr**
 	* Functions as plasticizer that bonds with the gelatine (makes it flexible). 
-* **Water - 480 ml/gr**
+* **Water - 50 ml/gr and a dash extra**
 	* To dissolve and mix the polymeer and plasticizer
+	* To dissolve and mix the corn starch before adding to the other liquid
 
 ## Tools
 
@@ -209,13 +212,15 @@ By Cecilia Raspanti, Textile Lab, Waag Amsterdam, 9 March 2020
 
 ### Estimated cost (consumables) in local currency
 
-2,56 Euros for a yield of approx 300 ml
+2,26 Euros for a yield of approx 250 ml
 
 ### Local supplier/sourcing info
 
 Gelatin powder - Jacob Hooy (online retailers)
 Glycerine 1.23 - Orphi/Chempropack (online retailers)
-Molds - Houseware stores, thrift shops
+White vinegar - supermarket
+Corn starch (organic, non-GMO) - supermarket
+Molds - Textured plastic, old packaging material, textile shop, homeware shops
 
 ## Copyright information
 
@@ -225,20 +230,22 @@ Yes
 
 ### This recipe was previously published by someone else
 
-Yes, in: **Bioresin (gelatin) Recipe** by Cecilia Raspanti (Textile Lab, Waag), Fabricademy Class "Biofabricating", 2019, [link](https://class.textile-academy.org/classes/week05A/).
+Yes, in: ADDD HERE
 
 ##References
 
 - **The Secrets of Bioplastic** by Clara Davis (Fabtex, IAAC, Fab Lab Barcelona), 2017, [link](https://issuu.com/nat_arc/docs/the_secrets_of_bioplastic_).
 - **The Bioplastics Cookbook: A Catalogue of Bioplastics Recipes** by Margaret Dunne for Fabtextiles, 2018, [link](https://issuu.com/nat_arc/docs/bioplastic_cook_book_3)
-- **Bioresin (gelatin) Recipe** by Cecilia Raspanti (Textile Lab, Waag), Fabricademy Class "Biofabricating", 2019, [link](https://class.textile-academy.org/classes/week05A/).
+- Material archive sample Maria Viftrup
 
 ## Images of final product
 
-![](../../images/finalpics-29.jpg)*Bioresin slab, Loes Bogers, 2020*
+![](../../images/finalpics-38.jpg)*Biorubber, Loes Bogers, 2020*
+![](../../images/finalpics-39.jpg)*Biorubber, Loes Bogers, 2020*
+![](../../images/finalpics-40.jpg)*Biorubber, Loes Bogers, 2020*
+![](../../images/finalpics-46.jpg)*Biorubber, Loes Bogers, 2020*
+![](../../images/finalpics-47.jpg)*Biorubber, Loes Bogers, 2020*
 
-![](../../images/finalpics-30.jpg)*Bioresin slab, Loes Bogers, 2020*
 
-![](../../images/finalpics-37.jpg)*Bioresin slab and half dome, Loes Bogers, 2020*