Once cured (typically 24 hours), sand the surface smooth using the grit sequence mentioned above. 2. Other Interpretations
Use hydrogen peroxide and a toothbrush to scrub the crack. How to Repair
Sand the area starting with 220-grit sandpaper , moving up to 320-grit , and finishing with 400-grit . Always use a circular motion and "feather" the edges to blend the repair. Cracks (The "Ice Pack" Method): Once cured (typically 24 hours), sand the surface
Lay an ice pack over the crack for 45 minutes to make the material contract and widen the gap. Once cured (typically 24 hours)
Heat the crack with a blow dryer until it disappears, then fill it with industrial-grade cyanoacrylate (super glue) . For larger cracks, use a two-part epoxy filler color-matched with shavings from the material.