Heavy-duty wall repair spackling + primer is the go-to product for strong, durable repairs on walls and ceilings. Ideal to repair cracks, and both small and large holes. The lightweight formula is easy to spread, easy to control and doesn't sag, shrink, or crack. Features a smooth finish that does not require sanding and paints like drywall for a professional looking finished project. Fast drying, paintable in 15 minutes. Tight-lock container for long shelf life and reusability. Ideal for indoor and outdoor use. For outdoor use, coat with exterior paint. Not recommended for continuous water submersion.