Session Saver Ding Repair Surfboard Repair Putty for instant repairs for your board

• Cures rock hard in any weather conditions, even underwater
• Easily re-build noses, tails, and rails
• Cures fiberglass white
• Sticks like a leach to surfboards of all materials, including polyester and epoxy
• No sanding required. Just smooth with wet fingers

Session Saver works brilliantly and they even donate a % of profits to the Surfrider foundation. 
It comes from the Northshore of Oahu, Hawaii where they know a thing or two about dings!