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This article is about Rubber Cement, similar in appearance to Ipecac.

Rubber Cement is an unlockable passive item.

Effects[ | ]

  • Makes tears bounce off walls, enemies and environmental objects.
    • Tears that bounce off of enemies bounce in random directions, whereas tears that bounce off of walls and other objects bounce directly back.
    • When tears bounce from enemies, they become able to hit the same enemy again should they bounce off of another enemy or obstacle.
    • (in Afterbirth † and Repentance) Tears bounce off bombs.

Notes[ | ]

  • Tears will bounce off of walls while fighting (in Repentance) Boss The Beast ingameThe Beast, despite the lack of visible walls.

Synergies[ | ]

  • (except in Rebirth) Collectible Brimstone iconBrimstone: The blood laser bounces off of walls, creating a second beam that deals half damage.
    • (except in Rebirth) Character Azazel iconAzazel's Brimstone laser becomes a full length laser after bouncing, but will deal half of the damage.
      • (in Afterbirth † and Repentance) Character Azazel iconAzazel's Brimstone no longer becomes a full length laser after bouncing, and instead bounce as a regular mini-Brimstone.
  • Collectible A Lump of Coal iconA Lump of Coal: Both effects stack, with tears that bounce off of enemies being able to hit others for more damage.
  • Collectible The Parasite iconThe Parasite: Tears will bounce off of walls without splitting, but split and bounce when hitting enemies. The split tears and the original one will bounce off everything.
  • (in Afterbirth † and Repentance)Collectible Pop! iconPop!: Significantly increases the uptime of tears, since they are not limited by range and each tear will bounce off of each other. Continuously firing tears will eventually create a positive feedback loop, as the tears will keep bouncing faster and faster while not dropping to the floor.
    • Pop! + Collectible A Lump of Coal iconA Lump of Coal: Extremely powerful combination; Lump of Coal's tear size increase will make it much easier for tears to bounce off of each other, while they increase in damage very rapidly. Given some time and enough tears, this can kill even final bosses such as (except in Rebirth) Boss Hush ingameHush and (in Afterbirth † and Repentance) Boss Delirium ingameDelirium quickly.
  • (except in Rebirth) Collectible Technology iconTechnology / Collectible Technology 2 iconTechnology 2 / Collectible Tech.5 iconTech.5: Laser bounces off walls, creating a second beam that does half damage.
  • (in Repentance)Collectible Tech X iconTech X: The laser rings bounce off walls.

Interactions[ | ]

  • (in Rebirth) Collectible Brimstone iconBrimstone: Overrides Rubber Cement.
  • Collectible Bob's Rotten Head iconBob's Rotten Head: The bomb bounces back upon hitting an obstacle, and will not explode until it runs out of air time. Not recommended, as it can make self-damage more likely in small rooms.
  • (except in Rebirth)Collectible Continuum iconContinuum: Overridden by Rubber Cement; tears will still bounce off of walls and obstacles.
  • Collectible Dr. Fetus iconDr. Fetus: Overrides Rubber Cement.
  • Collectible Epic Fetus iconEpic Fetus: Overrides Rubber Cement.
  • (in Afterbirth † and Repentance) Character The Forgotten iconThe Forgotten: No effect on the skeleton form's attacks.
  • Homing tears: Tears will bounce off enemies and home back in, but to deal damage to that enemy again they must bounce off a different object.
  • Collectible Ipecac iconIpecac: Tears will bounce off of obstacles, but not enemies.
  • (in Afterbirth † and Repentance)Collectible Jacob's Ladder iconJacob's Ladder: Tears don't generate arcs when hitting obstacles.
  • Collectible Lost Contact iconLost Contact: Tears will bounce off of enemy tears. Not recommended unless the player's fire rate is high, as it can prove detrimental when trying to hit a shooting enemy.
  • Collectible The Ludovico Technique iconThe Ludovico Technique: Overrides Rubber Cement.
  • Collectible Mom's Knife iconMom's Knife: Overrides Rubber Cement.
  • Piercing tears: Tears that don't destroy enemies will bounce off of them instead of going straight through them. Tears can still damage enemies such as KnightKnights that are normally invulnerable from the front.
  • (in Afterbirth † and Repentance)Collectible Sinus Infection iconSinus Infection: Boogers stick to enemies, but otherwise they bounce normally.
  • Spectral tears: Overridden by Rubber Cement.
    • (in Afterbirth † and Repentance) Tears pass through obstacles but bounce off walls.
  • (in Afterbirth † and Repentance)Collectible Sulfuric Acid iconSulfuric Acid: Overridden by Rubber Cement.
  • (in Rebirth) Collectible Technology iconTechnology / Collectible Technology 2 iconTechnology 2: Overrides Rubber Cement.
  • Collectible Tiny Planet iconTiny Planet: Tears no longer fly over obstacles but instead bounce very quickly along with them, appearing to "vibrate".
    • (in Afterbirth † and Repentance) Tears pass through obstacles but coast along walls, trying to maintain the circular trajectory.
  • (in Afterbirth † and Repentance)Collectible Trisagion iconTrisagion: Tears no longer bounce off of enemies but will still bounce off of walls and obstacles.

Unlockable Achievements[ | ]

In-game Footage[ | ]

Trivia[ | ]

  • The item's appearance is loosely based off Elmer's Glue brand Rubber Cement.


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