GRP Scratch:
Sand down
GRP gel coat filler
(Mix with)
Gel coat hardner
Apply coat and hardener mix
Dry for 1 hr depending on temperature
Sand down
(Sand with 320 paper moving down 4 grades with wet paper)
Apply paste compound for polish smooth shine
Repairing holes:
Place Polyester resin, 3 layers, criss crossed
Wet with polyester resin solution & hardener
Laminate
Leave for 3 hrs
Apply process and repeat again 3 times
Gel Coat:
Apply thin 1.5 mm layer of gel coat to avoid cracking of thickness.
Remove staining with Yellow Stain Remover
Wax with UV protection wax
Tools:
Laminator, brush, sanding block