3M 94 Primer is the best product on the market to prep the area where you are going to place the Flexible Strip. You will clean (degreaser) the location, you will rub the location with an included Alcohol Pad and once dry you will brush on the 3M 94 Primer. Let dry for 3 to 5 minutes then secure the Flexible Strip to the location. Please understand that once you place the strip using this product and these methods you will have to work at it to remove the strip. Be careful not to get 3M 94 Primer on a noticeable finished painted or chromed surface. Best product to secure Flexible Strips in place. Read complete instructions and use at your own risk!