Gutter Cleaner is a product designed to remove oxidation from gutters commonly referred to as "tiger stripes". This is a strong cleaner, only a few ounces is needed per gallon mix. We suggest a pump sprayer application followed by brushing with our soft gutter brush for best results. 
 
typical mix ratios: 10 ounces per gallon for general cleaning, 15-20 ounces per gallon for heavy cleaning. As with any cleaning solution, always do a test spot to verify the surface can withstand the cleaning agent. Do not allow to dry on the surface being cleaned.