Destroys rust and leaves a tough coating that can be painted without another primer. Seals and protects metal. Remove loose rust with coarse sandpaper or wire brush. Surface must be clean, dry and free of grease, dirt and oil. Spray or brush Extend onto rusty surface and allow to dry overnight before top coating. Spray can is handy for hard-to-reach areas or detailed objects such as lawn furniture and hand rails. No. 1381192: Size: 8 Oz., Product Form: Liquid, Pkg Qty: 1, Package Type: Bottle No. 633877: Size: 10.25 Oz., Product Form: Aerosol, Pkg Qty: 1, Package Type: Can Thanks for shopping Hipp Hardware Plus's Online Store for all your DIY and Home Improvement needs. Remember Hipps Help!