Red Seal Painter and Decorator Practice Exam

How should exterior wood be prepared before staining?

1. Paint directly without preparation

2. Only wash with soap and water

3. Clean, sand, and ensure it is free of moisture and dirt

4. Apply a thick layer of primer

The correct answer is: Clean, sand, and ensure it is free of moisture and dirt

Preparing exterior wood before staining is a crucial step that enhances the adhesion and longevity of the stain. The correct approach involves cleaning, sanding, and ensuring that the wood is free of moisture and dirt. Cleaning the wood removes any dirt, mildew, or previous finishes that could interfere with the stain's ability to penetrate the surface. Sanding the wood opens up the grain, allowing the stain to soak in more effectively and impart a more uniform finish. Additionally, it's essential to ensure that the wood is dry, as moisture can hinder the stain's adhesion and lead to issues such as peeling or blistering over time. This comprehensive process ensures that the wood's surface is in optimal condition for staining. Each step plays a critical role in achieving a professional-looking finish that is durable and enhances the natural beauty of the wood.