Will this lip scrape on speed bumps or driveways?

Ground clearance depends on your suspension setup and bumper height. Measure the distance from your existing bumper to the ground before installation, then compare it against your typical driving obstacles. The lip extends minimally beyond the factory bumper, so conservative driving in tight parking situations is recommended if you've lowered your suspension.

Does the FRP material flex or stay rigid?

FRP panels are rigid by design, maintaining shape under normal driving conditions. The material will not sag or warp over time. If impacted at severe angles, the panel may crack rather than bend — this is inherent to fiberglass construction and why careful installation and bumper support underneath are important.

What do I need to do before painting?

Sand the surface with appropriate automotive sandpaper and clean thoroughly to remove all dust. Use a quality automotive primer and your choice of topcoat paint to match your vehicle. Consult your paint supplier for adhesion primers specific to FRP substrates if you're applying a base coat over the factory primer.