Rubber Isolator Failure Mode
Rubber Isolator Failure Mode
(OP)
Hey, I am new to rubber engineering, was wondering if anyone has seen this type of failure of rubber before. The part is not mechanically overloaded and is made from natural rubber. I was thinking it possibly could be ozone cracking but not sure. I noticed between the cracks were small dots of white. Any help would be much appreciated.





RE: Rubber Isolator Failure Mode
Is there stress on the parts, across the picture (perpendicular to the cracks)? That's how ozone cracks would show up.
tom
RE: Rubber Isolator Failure Mode
the part is not that old 2 or 3 years and is placed in a sealed electrical cabinet. Yes there is stress perpendicular to the cracks (compressive). Is there any way telling from the picture whether it could be caused by compressive stress and temperature or compressive stress and ozone?
Regards, Michael
RE: Rubber Isolator Failure Mode
RE: Rubber Isolator Failure Mode
RE: Rubber Isolator Failure Mode
if epdm cost is high for you then you can blend epdm with natural and add some ozone protector. it will work.
RE: Rubber Isolator Failure Mode
RE: Rubber Isolator Failure Mode
what white product is used in the formulation, can you test if the white dots are that material?