Fixing Cracked Plastic parts.
Sand back of damage with 80g,
Apply Body Filler - Fibre glass filler is best.
Link: https://vgautopaints.com.au/collections/body-filler/products/f250-fibreglass-filler
Apply Mesh:
Link: https://vgautopaints.com.au/collections/body-filler/products/upol-alluminium-mesh
Turn over and sand with 80g
Apply Filler.
Link: https://vgautopaints.com.au/collections/body-filler/products/copy-of-car-system-elastic-weiss
Sand with 80g, 120g, 240g and prime.
Sandpapers Link: https://vgautopaints.com.au/collections/sand-papers
Best Machine ever.