The material I would most suggest you of o rings for brake fluid is peroxide cure EPDM. You might say, EPDM is not good at oil resistant. Yes, that’s right. But one of the exceptions, peroxide cure EPDM has the best performance of brake oil resistant among all kinds of rubbers.
Peroxide cure EPDM is not the only choice for o rings for brake fluid. To choose a material, you also need to consider the temperature range, pressure, and other details of the working condition.
Contact Jiacheng New Material (SJK) to learn more about the o rings for brake fluid