Material Analysis
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PA12 has excellent oil resistance but its performance declines in certain oils or solvents
Problem Phenomenon
PA12 has excellent oil resistance but its performance declines in certain oils or solvents
Cause Analysis
（1）PA12 has good resistance to mineral oil but insufficient resistance to certain synthetic oils
（2）Fuel additives may erode PA12
（3）The mechanical properties of PA12 decline after long-term immersion in oil
（4）The resistance of PA12 in polar solvents is not as good as PA66
（5）Rising oil temperature accelerates erosion
Solution
（1）Verify the resistance of PA12 in the target oil
（2）Long-term immersion tests to confirm the performance retention rate
（3）High-temperature oil environments require modified PA12
（4）Prefer PA66 for polar solvent environments
（5）Oil additive compatibility testing
Key Takeaway
PA12 oil resistance requires actual verification and formulation optimization
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