Do you have water coming into your street rod when it rains?
When building a street rod, often the weather stripping used won't seal 100%. Poor sealing causes water to get into the passenger compartment during rainy conditions. A good example of this problem is shown in Figure 1 below. Notice that the door window on the right bottom side does not match exactly the shape of the front windshield support. When standard weather stripping is used in this application, there is a small triangular space at the bottom right of the door window without weather stripping.
To solve this problem, the following method may be used to improve the sealing of street rod windows and other weather stripping gaps. Refer to Figure 2 below. This figure shows where more weather stripping is needed in this example. Notice the triangular area where more weather stripping could be placed.
This product is a good sealant and also has a rubber consistency when fully dried. To smooth out the Black Silicon Adhesive Sealant, use a Latex glove and wet your index finger with water or glass cleaner. Gently smooth out the Black Silicon Adhesive Sealant. The water or glass cleaner keeps the Black Silicon Adhesive Sealant from sticking to the Latex glove and your finger. Let dry for 24 hours.
After the additional sponger rubber weather stripping piece is shaped, smoothed, and dried, it may be necessary to paint the entire weather stripping piece a flat black to make it match the original weather stripping. Figure 5 below shows an example of how the new piece looks after shaping and painting.
Keep in mind that depending upon the application, vehicle, window size, type of car, type of weather stripping, etc. the size and shape of the added weather stripping will be different, but the process will be the same.