A Propulsion Gel emitter.
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Thank you (off mic) I can't believe I'm thanking these people (on mic) for staggering your way through Aperture Science's propulsion gel testing. You've made some real contributions to society for a change, and for that, humanity is grateful.
— Cave Johnson
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Propulsion Gel is a bright orange substance that greatly reduces the friction of objects moving across the surface to which it is applied. Propulsion Gel also increases velocity, as objects covered in Propulsion Gel also have their friction reduced, causing them to slide around and be moved more easily. Used in combination with Repulsion Gel, the player can travel a considerable distance, which is vital in situations in which Portals cannot be used.
Crouching will slow the character down while on Propulsion Gel, just like Crouching stops the character from bouncing on Repulsion Gel.
Function
Propulsion Gel can be applied to virtually any surface, and can be placed in different locations through the use of carefully-placed portals. The Gel is most useful when applied to long, straight areas, as it allows the player to reach a considerable velocity, thereby allowing the player to jump over large gaps or move quickly past (or through) objects such as Crushers.
Appearances
Portal 2 Single-Player Campaign
Portal 2 Multi-Plater Campaign
Portal 2 Sixense MotionPack DLC
Demonstrations
Achievements
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Stranger Than Friction
Master the Propulsion Gel
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Gallery
| Objects |
| A Turret covered in Propulsion Gel
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| A Weighted Storage Cube covered in Propulsion Gel
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| Promotional art |
| The promotional image in the E3 Demo
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Closed Captions
- When Atlas, P-body enter or exit the area covered with the gel
- Entering Speed Gel
- Exiting Speed Gel
Trivia
- Propulsion Gel was based off of the red paint from Tag: The Power of Paint, which functioned in a similar fashion.
- Designed as a diet aid and marketed under the name "Propulsion Pudding", this sweet, largely non-toxic liquid form of fibreglass insulation increased the velocity of any food that followed it through the digestive tract, leaving the body no time to absorb calories.
- Propulsion Pudding was pulled from shelves when it was discovered that digestion plays several crucial roles in the eating process, such as breaking food down into small, manageable chunks before it is violently expelled from the human body.
