Sealing Systems
Door Weatherstrip & Glass Run
Door seals live through compression cycling, ozone, heat, freeze, wash chemistry, and constant rubbing at the glass. The package needs different hardness zones and surface behavior while keeping corners, clips, and molded joints compatible with the primary extrusion.
Service zone: Vehicle exteriorPassenger compartment
Component material package
A recommended grade per component, drawn from the Nexeo catalog. Recommendations are engineering assessments; a cited property links the choice to data we hold for that grade.
| Component | Recommended grade | Why |
|---|---|---|
Primary weatherstrip body Compressible perimeter seal and water barrier | Santoprene 121-70W175 Thermoplastic Vulcanizate (TPV) | A TPV is an automotive sealing candidate for extruded profiles, molded corners, and recyclable thermoplastic processing after compression-set validation. |
Glass-run wear surface Guides moving glass with controlled friction and noise | Elastollan 1185A Thermoplastic Polyurethane (TPU) | A TPU candidate can supply abrasion resistance at the moving interface, with friction treatment and weathering qualified on the finished profile. |
Molded corner and clip carrier Joins extrusion legs and locates the seal to the body | Hostacom PPR 1042 Polypropylene Compound (PP-T20) | A polypropylene-based carrier candidate supports molded locating features and family compatibility with a TPV sealing system. |
Producer datasheetNexeo Applications Engineering assessmentUnreviewedExtracted, not yet checked by a personAwaiting datasheetNot published by producer
Validation & compliance path
- OEM water-leak, wind-noise, and door-closure specifications
- Interior emissions requirements for cabin-facing portions
- Exterior ozone, UV, thermal-cycle, and car-wash chemical tests
Engineering watch-outs
- Seal force changes with temperature and aging; qualify door-closing effort across the full vehicle range.
- Low friction is a surface-system property. Validate coating, flock, or texture with the glass.
- Molded corners are frequent leak paths; test the actual extrusion-to-corner bond.
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