For resealing your RV, use TremPro 644 RTV silicone sealants. Ideal for sealing joints around windows, doors and moldings. Trempro 644 RTV is the most common silicone sealant used on RVs. It is a one-part general purpose acetoxy silicone sealant. Perfect for sealing joints between materials such as glass, aluminum, metal and metal alloys. Often used in recreational vehicles with its fast curing times. Remains flexible.
Before applying the silicone sealants, ensure all joints are cleaned and dry. Apply the sealant evenly. Allow up to 24 hours for curing.