Knowing when to apply the second coat of joint compound on drywall seams is an important part of achieving a professional-looking finish.
Here are 10 tips to help you know when it’s time to apply the second coat:
- Wait for the first coat to dry: The first coat of joint compound needs to be completely dry before you can apply the second coat. This usually takes 24 hours or more, depending on the temperature and humidity in your space.
- Look for visible seams: Check the seams after the first coat has dried to see if any seams are still visible. If so, you will need to apply a second coat of joint compound to cover them up.
- Check for bumps or ridges: Run your hand over the surface of the joint compound to feel for any bumps or ridges. If you feel any, you’ll need to apply a second coat to smooth them out.
- Look for gaps or holes: Inspect the seams for any gaps or holes that were not filled in by the first coat of joint compound. If you see any, you’ll need to apply a second coat to fill them in.
- Check the levelness of the seams: Use a straightedge or level to check the levelness of the seams. If you notice any low spots or uneven areas, you’ll need to apply a second coat to level them out.
- Assess the depth of the first coat: If the first coat of joint compound was applied too thinly, you may need to apply a second coat to achieve the desired level of coverage.
- Determine the finish you want: The second coat of joint compound can be used to achieve different levels of finish, from a smooth surface to a textured finish. Determine what finish you want before applying the second coat.
- Consider the lighting in the room: The lighting in the room can affect how visible the seams are. If the room has bright lighting, you may need to apply a second coat to ensure that the seams are completely covered.
- Use a wide taping knife: When applying the second coat of joint compound, use a wider taping knife than you did for the first coat. This will help you to feather out the edges and achieve a smooth surface.
- Sand and finish: Once the second coat of joint compound is dry, sand the surface smooth and finish the drywall as desired, using paint, wallpaper, or other decorative finishes.
By following these tips, you can ensure that your drywall seams are covered completely and that the surface is smooth and even, ready for painting or other decorative finishes.
Shopping tips:
There are several popular drywall compound products available in Canada, and the most popular ones may vary depending on factors such as regional availability and customer preference. Here are a few examples of well-known drywall compound products in Canada:
- CGC All-Purpose Joint Compound: This is a versatile and easy-to-use joint compound that is suitable for a wide range of drywall finishing applications. It is available in ready-mixed or powder form, and can be used for taping, finishing, or texturing.
- SHEETROCK Brand Plus 3 Lightweight Joint Compound: This is a lightweight, low-dust joint compound that is designed to be easy to sand and smooth. It is ideal for use on walls or ceilings and is suitable for taping and finishing.
- RONA Taping Compound: This is a high-quality, professional-grade taping compound that is designed for use on drywall joints and corners. It is available in a range of sizes and is easy to apply, with a smooth and even finish.
- Certainteed Easy Sand Joint Compound: This is a fast-setting joint compound that is designed to save time and improve efficiency on drywall projects. It is available in a range of setting times and is suitable for taping, finishing, or skim-coating.