What prep work do these louvers need before painting?

Sand the surface with appropriate automotive sandpaper and wipe clean of all dust. Apply your chosen basecoat and clear over the finished panels — the FRP is sealed and ready to accept paint without additional sealing steps.

Do these louvers require any mounting hardware to install?

These ship as bare louver panels. You'll need to verify your hatch's mounting points and source fasteners (adhesive or mechanical) based on your specific installation method. Check your vehicle's service manual or consult a fabricator to confirm the best approach for your setup.

Will FRP louvers hold up to heat and UV exposure?

Yes — FRP is formulated to resist UV degradation and thermal stress from engine heat and sun exposure. Once painted and sealed with clear coat, these louvers maintain their finish and structural integrity through daily driving and track use.