The Zinsser 4421 Spackling and Patching Compound is a gel-based paste designed for various surfaces including aluminum, copper, and painted wood. It comes in a 1-gallon can and covers an area of up to 13 sq-ft. This off-white compound has a mild odor and is suitable for application with a spackling knife. It has a temperature rating of 50 to 90 deg F and a viscosity of 150,000 cPs.

• Apply with a spackling knife for best results
• Suitable for various materials including wood and metal
• Covers an area of 13 sq-ft per application
• Gel form allows for easy application and smoothing
• Mild odor for user comfort during application
• Gallon size for larger patching projects
• Easy to sand for a smooth finish
• Dries quickly for efficient repairs
• Suitable for interior and exterior use