# Collagen (technology)

internal name `collagen` · tier 5 (Chemical science pack, [tier 5](https://factorio.kalzumeus.com/tier/5.md))
HTML page: https://factorio.kalzumeus.com/tech/collagen/

## Cost

700 units of (1 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 2 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 3 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 6 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 10 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 120 s each.

## Requires (2)

- [Chemical science pack](https://factorio.kalzumeus.com/tech/chemical-science-pack.md)
- [Epoxy](https://factorio.kalzumeus.com/tech/epoxy.md)

## Leads to (1)

- [Chitin processing](https://factorio.kalzumeus.com/tech/chitin.md)

## Unlocks (3 recipes)

### Collagen (`collagen`)

- 5 s · tier 5 · productivity modules allowed
- Ingredients: 10 × [Skin](https://factorio.kalzumeus.com/item/skin.md), 5 × [Urea](https://factorio.kalzumeus.com/item/urea.md), 50 × [Acetic acid](https://factorio.kalzumeus.com/fluid/acetic-acid.md), 500 × [Steam](https://factorio.kalzumeus.com/fluid/steam.md)
- Results: 4 × [Collagen](https://factorio.kalzumeus.com/item/collagen.md)
- Made in: Agitator MK 01, Agitator MK 02, Agitator MK 03, Agitator MK 04
- Unlocked by: [Collagen](https://factorio.kalzumeus.com/tech/collagen.md)

### Epoxy (`epoxy2`)

- 3 s · tier 5 · productivity modules allowed
- Ingredients: 10 × [Collagen](https://factorio.kalzumeus.com/item/collagen.md), 2 × [Nexelit plate](https://factorio.kalzumeus.com/item/nexelit-plate.md), 2 × [Resorcinol](https://factorio.kalzumeus.com/item/resorcinol.md), 1 × [Iron plate](https://factorio.kalzumeus.com/item/iron-plate.md), 50 × [Formaldehyde](https://factorio.kalzumeus.com/fluid/methanal.md), 50 × [Epichlorohydrin (ECH)](https://factorio.kalzumeus.com/fluid/ech.md)
- Results: 6 × [Epoxy](https://factorio.kalzumeus.com/item/epoxy.md)
- Made in: Fluidised bed reactor MK 01, Fluidised bed reactor MK 02, Fluidised bed reactor MK 03, Fluidised bed reactor MK 04
- Unlocked by: [Collagen](https://factorio.kalzumeus.com/tech/collagen.md)

### Phosphoric acid (`phosphoric-acid3`)

- 5 s · tier 5
- Ingredients: 3 × [Bone meal](https://factorio.kalzumeus.com/item/bonemeal.md), 4 × [Collagen](https://factorio.kalzumeus.com/item/collagen.md), 40 × [Sulfuric acid](https://factorio.kalzumeus.com/fluid/sulfuric-acid.md)
- Results: 4 × [Phosphate rock](https://factorio.kalzumeus.com/item/phosphate-rock.md), 10 × [Phosphoric acid](https://factorio.kalzumeus.com/fluid/phosphoric-acid.md)
- Made in: Bioreactor, Bioreactor, Bioreactor, Bioreactor MK 02, Bioreactor MK 02, Bioreactor MK 02, Bioreactor MK 03, Bioreactor MK 03, Bioreactor MK 03, Bioreactor MK 04, Bioreactor MK 04, Bioreactor MK 04, Bioreactor, Bioreactor MK 02, Bioreactor MK 03, Bioreactor MK 04
- Unlocked by: [Collagen](https://factorio.kalzumeus.com/tech/collagen.md)