Do some key word searching on here... this topic was done a while back....
A Razor Scraper & Eucalypus Oil is too much effort, compared to turps or metho, or petrol.... can't remember which...
Searching.....
Turps was the answer.....
www.seabreeze.com.au/forums/Stand-Up-Paddle/SUP/deck-grip-removal-results/?SearchTerms=deck,grip,removal