Using Window Putty (lineseed oil + chalk)Pro’s‣Natural Ingredients:‣Durability:‣Breathability:‣Workability:‣Traditional and Aesthetic Appeal:‣UV Resistant:Con’s‣Long Drying Time:‣Maintenance Required:‣Not Suitable for Some Modern Windows:‣Vulnerability to Damage Before Curing:‣Yellowing Over Time:‣Sensitivity to Temperature: