Track day’s over, but now I have a car show. The track day was just the opening act of the three-day Mt. Shasta festival of Datsun madness. Now there’s a two hour drive through a swarm of Highway Patrol, followed by car shows, autocrosses, and non-stop Nissan/Datsun geekery. I can’t show up with my bumper looking like the inside of Blanche Deveraux’s colon, so I hit the hardware store and buy one can of expanding spray foam insulation, one bucket of spackle, a hacksaw blade, a sanding fence, and a can of flat black spray paint.
Easy 5-step Instant bumper repair procedure (good until it rains…)
Step 1: Cut away any bumper scabs that stick out past the original body line.
Step 2: Fill cavernous voids with expanding spray foam (also useful as revenge-based exhaust backpressure enhancing foam.)
Step 3: Contain foam with paper towels and duct tape while curing.
Step 4: Use standard drywall repair process to spackle to roughly original shape.
Step 5: Sand and reapply flat-black attiude-in-a-can.