Loctite SI 5910 Black RTV Silicone

1. Clean and dry the surfaces. Scrape away all old gasket material with a plastic scraper to avoid scratching the metal. Wipe both mating flanges with isopropyl alcohol or a degreaser like LOCTITE® SF 7063, then let them dry completely. 2. Prepare the nozzle. Puncture the inner seal (if using a tube) and trim the plastic nozzle tip at a 45-degree angle to match your required bead width (typically 1 mm to 3 mm). 3. Apply a continuous bead. Extrude an unbroken, uniform bead onto one flange surface. Circle every bolt hole completely to stop oil from leaking past the threads. 4. Assemble immediately. Press the mating cover or flange into place within 5 to 10 minutes before the silicone starts to skin over. Avoid sliding the parts once they touch so you do not smear or break the bead. 5. Tighten fasteners. Torque the bolts evenly to the manufacturer’s specifications. Do not over-tighten to the point that all the silicone squeezes out of the joint. 6. Wipe excess and cure. Clean off any squeezed-out silicone immediately with a dry cloth. Allow 24 hours for a full cure (up to ~2.75 mm depth) before filling with oil or running the engine.