The Prawn Suit does not take collision damage, rendering this upgrade useless for it.
The formula used for the collision damage is the following: , where s represents self damage, d represents possible outgoing damage, and n represents the number of equipped Hull Reinforcement modules.
- 1 Hull Reinforcement -50% collision damage taken
- 2 Hull Reinforcements -75% collision damage taken
- 3 Hull Reinforcements -87.5% collision damage taken
- 4 Hull Reinforcements: -93.75% collision damage taken
Damage is only reduced from collision with terrain. Other sources of damage such as aggressive fauna do full damage.