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Tips & Instructions for XFasten Silicone Sealant


  1. Make sure that the surface is clean so that the sealant will adhere properly. You can use a window scraper to remove any unwanted residue. It is also recommended to clean the surface using a soap solution and to wipe it dry. Make sure that no dust, dirt, grime, oils, or any residue is present on the surface. Brush away all dust and dirt. Make sure that the surface is clean and dry before installing the silicone sealant.
  2. OPTIONAL: Cut a 45-degree angle on the sealant's nozzle. This is to make the installation more manageable, especially if you will be installing it in a hard-to-reach area. This step is optional as the nozzle's hole is already designed for optimal sealant flow. If you want to be more precise, then you can proceed to do a 45-degree angle cut.
  3. Apply the silicone sealant by dragging the tip of the sealant nozzle along the surface of the seam. Do not worry about excess sealant as you can wipe this off later. It is important to note that the sealant is meant to fill in the gap between two surfaces generously, but it is not designed as an adhesive that bonds two surfaces together. Make sure to apply a generous amount of sealant to the crevice to ensure maximum sealing.
  4. Spread the sealant evenly. You can wipe off and scrape any excess sealant using a window scraper or any flat tipped object or tool that can act as a scraper.
  5. Alternatively, you can use your finger to spread the sealant. Have a container of water nearby and wet your finger by dipping it on the water. Use your finger to spread the sealant evenly. Keep dipping your finger in water as silicone does not adhere to water (preventing any sealant from sticking on your finger if you use it to even out the application).
  6. Let the sealant dry. The sealant sets in 30 - 60 minutes. But for maximum strength, it is ideal to wait for 24 hours before exposing the surface in water or any external force.