The best type of drywall trowel for applying joint compound is a stainless steel finishing trowel with a slight flex. A trowel with a blade length of around 12 to 14 inches is ideal for covering large areas efficiently, while a width of 4 to 5 inches provides good control. The stainless steel material ensures durability and resistance to rust, which is crucial for maintaining a smooth finish over time. A trowel with a comfortable, ergonomic handle, often made of rubber or wood, allows for better grip and reduces hand fatigue during extended use. The slight flex in the blade helps in applying even pressure, which is essential for achieving a smooth, seamless finish without leaving ridges or lines in the joint compound. Additionally, a rounded or beveled edge on the trowel can help prevent gouging or damaging the drywall surface, making it easier to feather the edges of the compound for a flawless transition. Some professionals also prefer a trowel with a polished surface, as it can reduce drag and make the application process smoother. In summary, a stainless steel finishing trowel with a slight flex, ergonomic handle, and rounded edges is the best choice for applying joint compound, providing durability, control, and a high-quality finish.

To use a corner tool for drywall, follow these steps: 1. **Preparation**: Ensure the drywall is securely installed. Clean the corners to remove dust and debris. Gather necessary tools: corner tool, joint compound, taping knife, and sandpaper. 2. **Mix Joint Compound**: Prepare the joint compound to a creamy consistency. It should be smooth and free of lumps. 3. **Apply Compound**: Use a taping knife to apply a generous amount of joint compound to both sides of the corner. Ensure even coverage. 4. **Place Tape**: For inside corners, press drywall tape into the compound, folding it to fit snugly into the corner. For outside corners, use metal or plastic corner bead instead of tape. 5. **Embed Tape/Bead**: Use the corner tool to press the tape or bead into the compound. Start at the top and pull downwards, applying even pressure to remove air bubbles and excess compound. 6. **Smooth the Surface**: With the corner tool, smooth out the compound along the edges of the tape or bead. Ensure the compound is feathered out to blend with the drywall surface. 7. **Dry and Sand**: Allow the compound to dry completely. Once dry, sand the area lightly to remove any ridges or imperfections. 8. **Second Coat**: Apply a second, thinner coat of joint compound over the corner. Use the corner tool to smooth it out, feathering the edges further. 9. **Final Sanding**: After the second coat dries, sand the area again for a smooth finish. 10. **Inspect**: Check for any imperfections. Apply additional coats if necessary, sanding between each coat. 11. **Finish**: Once satisfied, the corner is ready for priming and painting. This process ensures a clean, professional finish on drywall corners.

For plastering walls, the size of the trowel you should use depends on the specific task and your comfort level. Generally, a trowel with a blade size of 11 to 14 inches in length and 4 to 5 inches in width is suitable for most plastering jobs. A larger trowel, such as a 14-inch one, allows you to cover more surface area quickly, which is beneficial for large walls. However, it can be heavier and more challenging to control, especially for beginners. A smaller trowel, like an 11-inch one, offers more control and precision, making it ideal for detailed work or smaller areas. The material of the trowel is also important. Stainless steel trowels are durable and resistant to rust, making them a popular choice. Carbon steel trowels are also available and are typically lighter, but they require more maintenance to prevent rust. The handle of the trowel should be comfortable to grip, as plastering can be a lengthy process. Ergonomic handles reduce hand fatigue and improve control. Ultimately, the best trowel size is one that balances efficiency with ease of use, tailored to the specific requirements of your project and your personal comfort.

To smooth out joint compound with a trowel, follow these steps: 1. **Preparation**: Ensure the surface is clean and dry. Mix the joint compound to a creamy consistency, free of lumps. 2. **Application**: Use a hawk or mud pan to hold the compound. Load the trowel with a moderate amount of compound. 3. **Initial Coat**: Apply the compound to the joint or seam with the trowel at a 30-degree angle. Spread it evenly, covering the tape or seam completely. 4. **Feathering Edges**: Increase the trowel angle to about 45 degrees as you move outward from the joint. This helps feather the edges, blending the compound into the surrounding surface. 5. **Smoothing**: Use long, continuous strokes. Apply consistent pressure to avoid ridges. For wide seams, use a wider trowel for better coverage. 6. **Drying**: Allow the compound to dry completely. Drying time can vary based on the compound type and environmental conditions. 7. **Second Coat**: Apply a second, thinner coat, extending further beyond the first coat's edges. Feather the edges again to ensure a smooth transition. 8. **Final Coat**: Apply a third, very thin coat if necessary, to achieve a seamless finish. Feather the edges meticulously. 9. **Sanding**: Once dry, lightly sand the surface with fine-grit sandpaper to remove any imperfections. Be careful not to sand too much, which can damage the surface. 10. **Clean Up**: Wipe the surface with a damp cloth to remove dust. Clean your tools immediately to prevent compound from hardening on them. By following these steps, you can achieve a smooth, professional finish on your drywall joints.

A drywall trowel and a plastering trowel are both tools used in wall finishing, but they serve different purposes and have distinct characteristics. A drywall trowel is typically larger, with a rectangular blade that can range from 11 to 14 inches in length. It is designed for applying joint compound over drywall seams and for smoothing out large areas. The blade is usually made of stainless steel or carbon steel, and it has a slight flex to help spread the compound evenly. The handle is often ergonomically designed for comfort during extended use. In contrast, a plastering trowel is generally smaller, with a blade length ranging from 8 to 12 inches. It is used for applying and smoothing plaster on walls and ceilings. The blade is usually made of high-carbon steel, which is more rigid than the blade of a drywall trowel, allowing for more precise control when working with plaster. The edges of a plastering trowel are often beveled to help achieve a smooth finish. The handle is typically wooden or rubberized for a firm grip. The key differences lie in their size, flexibility, and intended use. Drywall trowels are larger and more flexible, suitable for spreading joint compound over large areas, while plastering trowels are smaller and more rigid, designed for detailed work with plaster. These differences reflect the distinct requirements of working with drywall versus plaster, with each tool optimized for its specific task.

To prevent lines and ridges when using a trowel on drywall, follow these steps: 1. **Surface Preparation**: Ensure the drywall surface is clean, smooth, and free of dust. Sand any rough areas and remove debris to create an even base. 2. **Quality Tools**: Use a high-quality, flexible trowel or drywall knife. A wider blade (10-12 inches) helps in spreading the compound more evenly. 3. **Mixing Compound**: Properly mix the joint compound to a smooth, creamy consistency. Avoid lumps, as they can create ridges. 4. **Application Technique**: Apply the compound in thin, even layers. Start with a small amount on the trowel and spread it across the joint or seam with consistent pressure. 5. **Feathering Edges**: Feather the edges of the compound by applying more pressure on the outer edges of the trowel. This helps blend the compound into the drywall surface. 6. **Multiple Coats**: Apply multiple thin coats rather than one thick coat. Allow each layer to dry completely before applying the next. 7. **Sanding**: Lightly sand between coats using fine-grit sandpaper to smooth out any imperfections. Be careful not to sand too much, which can create depressions. 8. **Consistent Pressure**: Maintain consistent pressure on the trowel to avoid creating lines. Adjust your grip and angle as needed to keep the trowel flat against the surface. 9. **Final Touches**: After the final coat, sand the surface lightly to remove any remaining ridges. Wipe the surface with a damp cloth to remove dust before painting. 10. **Practice**: Practice your technique on a scrap piece of drywall to improve your skill and confidence. By following these steps, you can achieve a smooth, professional finish on drywall without lines and ridges.

The essential tools for finishing drywall corners include: 1. **Drywall Taping Knife**: A 6-inch knife is used for applying joint compound, while a 10- or 12-inch knife is ideal for feathering and smoothing the compound over the tape. 2. **Corner Trowel**: This tool is specifically designed for inside corners, allowing for a smooth and even application of joint compound. 3. **Drywall Corner Bead**: Available in metal, vinyl, or paper-faced, corner beads are used to reinforce and create sharp, clean outside corners. 4. **Mud Pan**: A mud pan holds the joint compound and allows for easy access and application with a taping knife. 5. **Joint Compound**: Also known as mud, this is used to embed tape and finish the surface. It comes in pre-mixed or powder form. 6. **Drywall Tape**: Paper tape is commonly used for inside corners, while mesh tape can be used for added strength. 7. **Sanding Block or Pole Sander**: These are used to smooth out the dried joint compound, ensuring a seamless finish. 8. **Utility Knife**: Essential for cutting drywall tape and trimming excess compound. 9. **Sanding Sponge**: Useful for smoothing corners and hard-to-reach areas. 10. **Corner Roller**: This tool helps to press the tape into the joint compound in inside corners, ensuring a tight bond. 11. **Hawk**: A flat surface tool used to hold joint compound, making it easier to apply with a trowel or knife. 12. **Dust Mask and Safety Glasses**: Protects against dust and debris during sanding. These tools collectively ensure a professional finish on drywall corners, providing durability and aesthetic appeal.