Before using our adhesion promoter, the bonding surface must be free of dust, grease, oil, moisture and other contaminants. Therefore, we strongly recommend cleaning the substrate with a lint-free cloth using solvents, such as ethanol, isopropanol or our Tesa ® 60040 Industry Cleaner. Once the surface is cleaned, you can go ahead and apply our Tesa® 60155 EcoBond adhesion promoter. The ideal application and surface temperature is between 15°C and 25°C. For outdoor applications, please always involve your local sales representative or contact our Customer Solution Center (CSC) directly. We recommend applying our adhesion promoter with a fine, lint-free cloth (do not use a pen, brush or sponge). Wipe only once and in one direction (do not go back and forth). The entire surface should be coated with a thin layer of adhesion promoter to achieve the best adhesion performance. Too much activator could cause adhesion failure. It is important to wait at least 10 minutes to give the solvents time to evaporate. Make sure the prepared surface is free of any contaminants before applying the tape. Once the substrate has been properly pretreated with adhesion promoterTesa ® 60155 EcoBond, adhesion should be established within 2 hours. If the pre-treated area is not bonded within 2 hours, the activation process must be repeated (one time only). Please note that due to the multitude of substrate formulations available on the market, we recommend testing our Tesa ® 60155 EcoBond adhesion promoter before use. Close container tightly immediately after each use. Tesa ® 60155 Adhesion Promoter EcoBond is a moisture reactive system. Prolonged exposure to atmospheric humidity will render the product cloudy and therefore inactive. do not use Tesa Adhesion Promoter® 60155 EcoBond if it has become opaque instead of transparent. The shelf life of this product is at least 12 months when stored at room temperature in its original unopened packaging. For further information and advice on safe handling, please refer to our Safety Data Sheet (SDS), which is available on request. Tesa ® products prove their remarkable quality every day under demanding conditions and