Installing weather-resistant window sealants is an essential step in ensuring the longevity and energy efficiency of your home's windows. A well-sealed window protects your home from harsh weather, keep your home warm.
Here's a step-by-step guide on how to apply window sash repair sealant properly:

Materials needed:

• Window caulk
  
• A Applicator tool
  
• Protective gear
  
• Painter's tape
  
• Cleaning wipes
  
  

Before you start, make sure the windows you are sealing are clean and dry. This will ensure a better bond between the caulk and the surrounding surface.

Open the windows slightly to allow air to circulate. Remove any debris or dirt.

1. Inspect the window for any gaps or cracks. Use a magnifying glass and a glass to take a closer look the surrounding areas. Mark any areas where you need to apply caulk.
   
   
2. Prepare the area around the window by removing any decorative trim. Use a putty knife to remove old debris. Sand the material to create a smooth finish.
   
   
3. Apply cover surrounding areas to any areas you don't want the adhesive to stick to like nearby ceilings. This will help keep the sealant in place.
   
   
4. Cut the apply tip of the applicator at an 45-degree angle. This will help you apply a precise amount.
   
   
5. Hold the caulk gun at a angled position and apply gentle pressure. Extrude a precise droplet.
   

Move the gun evenly along the target surface, applying gentle pressure.