*silicon slab just after mold release, Loes Bogers, 2020*
*biosilicone slab just after mold release, Loes Bogers, 2020*
## Variations on this recipe
- Add a **natural colorant** such as a vegetable dye or water-based ink (e.g. hibiscus, beetroot, madder)
- Add **less glycerine** for a more rigid foil
- Add **less glycerine** for a rigid biosilicone
-**Stiffeners** such as fibres, yarn or natural debris may be added for more structure and reinforcement.
-**Fillers** such as almond or sunflower oil, can be added to prevent additional shrinkage but might affect stickyness.
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### References this recipe draws from
-**Bioresin (gelatin) Recipe** by Cecilia Raspanti (Textile Lab, Waag), Fabricademy Class "Biofabricating", 2019, [link](https://class.textile-academy.org/classes/week05A/).
-**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)
-**Biosilicone Recipe** by Cecilia Raspanti (Textile Lab, Waag), Fabricademy Class "Biofabricating", 2019, [link](https://class.textile-academy.org/classes/week05A/).
### Known concerns and contestations\*
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## Material properties
### Comparative qualities
This resin is dense and rather heavy, but not rock hard like synthetic epoxy or cold like glass. It keeps certain level of bounciness to it.
This silicon is rather flexible considering it's thickness, but is quite hard when compared to silicone rubber baking trays for example that often contain softeners. Thinner sheets are more flexbile, thicker less.
### Technical and sensory properties
-**Strength**: strong
-**Hardness**: rigid
-**Hardness**: flexible
-**Transparency**: transparent
-**Glossiness**: matt
-**Weight**: heavy
-**Glossiness**: glossy
-**Weight**: medium
-**Structure**: closed
-**Texture**: medium
-**Texture**: smooth
-**Temperature**: medium
-**Shape memory**: high
-**Odor**: moderate in final product, high during production
-**Stickiness**: low
-**Weather resistance:**low
-**Odor**: moderate in final form, strong during production
-**Stickiness**: medium
-**Weather resistance:**poor
-**Acoustic properties:** needs further research
-**Anti-bacterial:** needs further research
-**Non-allergenic:** needs further research
-**Electrical properties:** needs further research
-**Heat resistance:** low
-**Water resistance:** water resistant
-**Chemical resistance:**needs further research
-**Scratch resistance:**moderate
-**Surface friction:**medium
-**Chemical resistance:**low
-**Scratch resistance:**high
-**Surface friction:**braking
-**Color modifiers:** none
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- Name: Loes Bogers
- Affiliation: Fabricademy student at Waag Textile Lab Amsterdam
- Location: Rotterdam, the Netherlands
- Date: 06-03-2020 – 16-03-2020
- Date: 19-02-2020 – 01-03-2020
### Environmental conditions
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Molds - acrylic sheet from hardware store or online retailers, lasercut
Nuts and bolts - from hardware store
## Copyright information
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### 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: **Biosilicone Recipe** by Cecilia Raspanti (Textile Lab, Waag), Fabricademy Class "Biofabricating", 2019, [link](https://class.textile-academy.org/classes/week05A/).
##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/).
-**Biosilicone Recipe** by Cecilia Raspanti (Textile Lab, Waag), Fabricademy Class "Biofabricating", 2019, [link](https://class.textile-academy.org/classes/week05A/).
