I have tried Goo Gone, lamp oil and 2 other solvents with little or no success. But I tried 91% isopropil alcohol and it cut it right away. I had some white pine pitch and balsam pitch on the roof and they both cut with goo gone and lamp oil, so Tamarack sap only cuts with alcohol. After all the tries I washed the awning with awesome and hot water and it looks pretty good. Thanks for the suggestions anyway...Dave
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