Air, oil and fuel filters (seals)

MobilityPU elastomers + PU filter foam
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What it is

What it is

Automotive filters use PU in two distinct functions: seals between filter housing and filter element (PU elastomers resistant to oil, fuel or hot air), and in some cases the filter media itself is reticulated PU foam (pre-filters in some systems).

The PU technology applied here is typically pu elastomers + pu filter foam, selected for the combination of mechanical, chemical and processing properties suitable for the application. Specific formulations vary by equipment manufacturer or final integrator, but the base system has stable characteristics documented in technical literature and segment-specific standards.

Why it matters

Why it matters

For automakers, interior Tier 1s and specialized suppliers, air, oil and fuel filters is a component where field failure means direct warranty liability — recall, fleet-scale replacement, or worse, OEM specification non-conformance that removes the supplier from the program for 5-7 years.

Current drivers accelerating. Electrification shifted performance baseline: EVs without combustion noise expose every secondary noise and vibration source, raising NVH demands. Emission regulation (interior VOC, end-of-life recyclability, evolving global standards) grows stricter. And dual-source qualification became a global OEM standard to reduce supply disruption risk — opening windows for qualified suppliers to enter active programs.

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