How to Paint Over Wood Knots
- 1). Scoop a chunk of wood putty out of the tub with a putty knife and press the putty into the low areas of the knots until the putty is flush with the surrounding surface. Wait 24 hours for the putty to dry.
- 2). Sand the wood putty and any drops of sap weeping out of the knots with a 120-grit sanding black. Just move the sanding black back and forth over the knots with even downward pressure. Sand until the wood knots are flush with the surrounding surface of the wood.
- 3). Apply stain-blocking wood primer to the knots with a paintbrush. Move the brush bristles back and forth until coverage is achieved. Wait 24 hours and then paint over the primer coat with the finish paint.
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