The plastic trim around a windshield is commonly called the windshield molding (also known as windshield trim).
Terminology and function
The edge of the windshield is enveloped by a trim piece that can be plastic, vinyl, or rubber, providing a finished look and helping seal the glass to the vehicle body. Different terms are used in industry and among mechanics, but they generally refer to the same edge treatment.
Here are common terms you may encounter:
- Windshield molding (also called windshield trim) — the decorative and protective strip that frames the glass and covers the seam where it meets the body.
- Weatherstripping — the flexible rubber seal around the edge that blocks water and air from entering the cabin; often integrated with the molding on modern cars.
- Gasket — the rubber or elastomer seal that abuts the glass to create a seal against the frame or body.
- Belt molding — a separate trim piece along the beltline or top edge on some vehicles; related in terminology but not always used around the windshield.
These terms describe the components that protect the edge of the glass, seal the opening, and provide a finished appearance. The exact name used can vary by manufacturer and region.
Materials and care
What the trim is made from and how to care for it vary by design. In many modern vehicles, the edge around the windshield is a plastic or vinyl composite with a rubber seal, designed to resist weathering and UV exposure.
- Plastic (PVC or ABS) with a vinyl finish for color and wear resistance.
- Vinyl or rubberized coating for flexibility and sealing performance.
- Metal accents (less common) used on some trims for styling while the core edge remains plastic or rubber.
Care tips: clean the trim with a mild automotive plastic cleaner, avoid harsh solvents that can deteriorate plastics or rubber, and inspect for cracks, tears, or loose fittings. Damaged trim or seals may require professional replacement to maintain water resistance and a clean appearance.
Summary
The plastic windshield edge is typically called the windshield molding or windshield trim, with related terms such as weatherstripping and gasket describing the adjoining seals. Its purpose is to finish the opening, protect the glass edge, and help seal against water and air while enabling a neat appearance. Proper maintenance helps prevent leaks, wind noise, and cosmetic deterioration.
What is windshield pillar trim?
Feedback. A-pillar trim refers to the interior panel that covers the vertical support structure, called the A-pillar, on both sides of the vehicle's windscreen. The trim serves as an aesthetic covering, concealing the structural components inside the pillar.
What is the trim around a windshield called?
If you've ever noticed the sleek black trim along the edge of your windshield, that's what the automotive glass industry calls a moulding. Mouldings are a cosmetic finishing piece that can run along the top or around the perimeter of your windshield.
Can you replace the windshield trim?
Your car's worn-out windshield molding can be unsightly. Luckily, you can easily replace it by buying an OE-grade windshield molding right here at CarParts.com. We have a wide selection of OE-replacement windshield molding replacements to help restore your car's aesthetic value.
Do you need the plastic undercarriage on your car?
The underbody shield protects your engine components and other vital systems from road debris, water, salt, and other contaminants. It also helps manage airflow under the car to aid with cooling and fuel efficiency.