AW11 MR2 Window Trim Knife Seals

The original trim uses PVC coatings and rubber seals with integrated knife edges that help close the gaps between the trim, glass, and body. When these original materials deteriorate or are removed, the sealing edge is lost.

This STL includes two replacement seal designs:

• Window Trim Micro Edge Seal: Attaches to the edge of the original steel trim after the factory PVC coating has been removed. Refinish, paint, or wrap the trim first, then bond the TPU seal to the trim once the coating has fully cured.

• Windshield Trim Knife Seal: Designed for the left and right windshield trim pieces. The seal friction-fits over the existing steel lip and can be secured with a small amount of CA glue if desired.

Print Recommendations

I printed these using Overture 95A TPU and recommend:

• 0.4 mm nozzle

• 0.08 mm layer height

• Very slow print speed

• Very dry filament

• 6 walls

• Concentric top and bottom layer pattern

Straightening the TPU Seals

Freshly printed TPU seals can have some waviness or curling from the stresses introduced during printing. I found a simple way to straighten them:

Hang the seal from the top using a spring-clip curtain rod holder, then attach a heavy pair of Vise-Grips to the bottom to gently tension the seal. While under tension, carefully warm the TPU with a heat gun. The combination of heat and light tension allows the material to relax and release the stresses that cause the curly, wavy shape.

Take care not to overheat the TPU. A little heat is all that's needed.

Installation

When gluing the seals, use a precision applicator to apply a very small amount of CA glue. This helps keep excess adhesive off your freshly refinished trim and prevents accidental damage to the new finish.

I will continue updating this STL page if I recreate additional MR2 trim seals, so check back for future additions.

🎥 Watch the Video Below

Want to see how these seals were recreated, printed, and straightened? Watch the video below for the full process: