I work for an injection molding company and one of our customers tests requires a small part to be submerged in DOT3 brake fluid for X amount of time, rinsed off, and then destructively tested. We have not changed out process or raw material. Our raw material has been tested multiple times in recent months and is pure and meets all requirements.... yet suddenly we are failing testing after the DOT3 test. Many people and labs have been involved and cannot seem to nail this down. I have used this website many times in the past for my vehicles and thought, well, maybe someone out there can help out with this issue.
The idea I keep coming back around to is maybe some DOT3 additives have changed over the past few years? For many years we used the same DOT3 brake fluid, we had dozens of small bottles that would last about a month each. Suddenly when we are buying new DOT3 fluid, we are failing testing. Any thoughts or ideas if the fluid today could be more aggressive than a few years ago?
Note: the plastic is polycarbonate polyester blend.
The idea I keep coming back around to is maybe some DOT3 additives have changed over the past few years? For many years we used the same DOT3 brake fluid, we had dozens of small bottles that would last about a month each. Suddenly when we are buying new DOT3 fluid, we are failing testing. Any thoughts or ideas if the fluid today could be more aggressive than a few years ago?
Note: the plastic is polycarbonate polyester blend.