Having trouble with silicone brake fluid leaks

[moxie62]

I've had all 4 brake cylinders on a 59 resleeved and new rubber. Problem is, I put in silicone brake fluid and 2 of them are leaking. I like the silicone fluid because it does not damage paint but has anyone else had this problem. I'm thinking about draining all the fluid and putting in dot 3. Never had leaks with regular fluid. any thoughts.

 

[JohnZ]

I've had all 4 brake cylinders on a 59 resleeved and new rubber. Problem is, I put in silicone brake fluid and 2 of them are leaking. I like the silicone fluid because it does not damage paint but has anyone else had this problem. I'm thinking about draining all the fluid and putting in dot 3. Never had leaks with regular fluid. any thoughts.

Do you have any idea how old the rubber parts were (how long they had been "on the shelf")? Unless they were over 30 years old, they should have been compatible with DOT5 fluid.