TEAK MINUS is a quality controlled biodegradable, phosphate free chemical, with no acid in the formula. It was developed specifically for use in the marine industry. TEAK MINUS is concentrated to emulsify/breakdown the dirt, grease, oils and other pollutants that accumulate in teak wood. Heavy clean (1) part TEAK MINUS to (3) parts waterFor lightly soiled teak, dilute (1) part TEAK MINUS with (10) parts water. When using TEAK MINUS, scrubbing with a “doodle bug”, or a soft brush will be ample for application. Each user can use his own experience as to desired dilution after becoming familiar with use of these products. NOTE: TEAK MINUS is not to be rinsed from teak until TEAK PLUS, the companion neutralizer, is applied after scrubbing, the complete process renders the acid to an akylid, state. Don’t get this product on anodized aluminium - it will etch it! size: 2.5 gallons