What does DOT3 brake fluid do to ABS type plastic?

  • 1
    If you get it off quick enough nothing, otherwise it's an excellent paint remover and may degrade the plastic as well...
    – Solar Mike
    Commented Dec 10, 2017 at 22:07
  • Welcome to Motor Vehicle Maintenance & Repair! Commented Dec 10, 2017 at 23:25

1 Answer 1


DOT3 should not affect ABS plastic. It is only detrimental to natural rubber and paint. It also absorbs water, which may cause rust/corrosion in steel brake lines. Other than that, you shouldn't have any issues with it on plastic of pretty much any kind.

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