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Title: Not effective on tree sap
Review: I had to repeat the ''spray on and wait one minute' process several times before the sap would come off. Even then it would only come off if I vigorously scrubbed it with a plastic scrub. It did not leave a clean surface (as advertised on the back of the bottle) but instead left my windows very waxy and impossible to see out. I had to wash it off with a hose to regain visibility. Would not recommend.Note: Tree sap had been on the car for several years, this may have been why it wasn't effective.
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