Have you ever found yourself standing in front of a wall with numerous holes and cracks, unsure of what product to use to repair them? The overwhelming number of options available can leave even the most experienced DIYers scratching their heads. Spackle and joint compound are two popular choices, with each having their own unique set of characteristics and uses. In this article, we’ll dive into the differences between the two, and outline the situations when each is the most appropriate choice. We’ll also walk you through step-by-step instructions for how to use spackle and joint compound, and provide some helpful tips to make your repairs go smoothly.
Differences Between Spackle and Joint Compound
When it comes to filling holes and cracks in walls, there are two popular options: spackle and joint compound. It’s important to understand the differences between these two fillers so that you can choose the right one for your project. Spackle and joint compound have unique properties and are suited to different tasks. By understanding these differences, you can achieve a smoother and more professional finish on your walls. To prepare your surface for filling, make sure to clean the area thoroughly by following the steps for hole and crack preparation and cleaning.
Spackle
Spackle is a type of filler that is commonly used for smaller holes and cracks. It is a lightweight, non-shrinking compound that dries quickly, making it perfect for quick repairs. Spackle is typically used for interior walls and ceilings, and it’s a popular option among DIYers due to its ease of use.
Here are some key features of Spackle:
| Feature | Description |
| Dries Quickly | Spackle dries quickly, so it’s perfect for quick repairs and projects with tight deadlines. |
| Lightweight | Spackle is a lightweight compound that is easy to apply and sand. |
| Non-Shrinking | Unlike some other fillers, Spackle is non-shrinking, meaning it won’t crack or shrink as it dries. |
| Interior Use | Spackle is recommended for use on interior walls and ceilings. |
Spackle is a great option for smaller holes and cracks on interior walls when a quick repair is needed. However, for larger holes and cracks or exterior surfaces, joint compound may be a better option. Make sure to properly prepare the surface before applying Spackle or any other filler, and always follow manufacturer instructions for best results.
To learn more about filling holes and cracks for painting, check out our guide on the topic. For information on other types of fillers, see our guide to types of fillers. And for tips on applying filler, check out our tips for applying filler.
Joint Compound
Joint compound is a versatile material used for repairing larger holes and cracks in walls and ceilings. It is typically sold in bags as a dry powder that can be mixed with water to create a smooth paste that can be spread over damaged areas. Joint compound is made of gypsum dust, which gives it a hard, durable finish that is ideal for repairing damaged surfaces.
Main Features of Joint Compound:
| Feature | Description |
| Strength | Joint compound is very strong and can handle larger repairs. |
| Drying Time | Joint compound takes longer to dry than spackle. |
| Texture | Joint compound is typically smoother than spackle and can be sanded down to a very smooth finish. |
| Application | Joint compound is typically used for larger repairs, as it can be spread over larger areas and can be built up for a more solid repair. |
| Usage | Joint compound is ideal for repairing larger holes, cracks, and damaged areas on both interior and exterior surfaces. |
When to Use Joint Compound:
There are a few situations when joint compound is the best choice for repairs:
- Large Holes and Cracks: Joint compound is ideal for repairing larger holes and cracks that are too big for spackle to handle.
- Exterior Surfaces: Joint compound can be used on both interior and exterior surfaces, making it a great all-around repair material.
- Skim Coating: Joint compound can be used to skim coat damaged surfaces, creating a smooth texture that can be painted over.
How to Use Joint Compound:
- Preparation: Prepare the area by cleaning it thoroughly and removing any loose debris. If the area is larger than a few inches, you may need to use mesh tape to help support the repair.
- Application: Mix the joint compound according to the instructions and spread it over the damaged area, using a putty knife to smooth it out as you go.
- Sanding: Once the joint compound has dried, sand the repair down to a smooth finish using fine-grit sandpaper. Be sure to wear a mask to avoid breathing in any dust.
Tips for Using Joint Compound:
- Be sure to mix the joint compound very well to avoid lumps or inconsistent texture.
- Apply joint compound in thin layers, building up as needed for a stronger repair.
- If you’re using joint compound for a skim coat, start with a thin layer and build up as needed, letting each layer dry completely before adding another.
Joint compound is a great choice for repairing larger holes and cracks on both interior and exterior surfaces. With a little practice, you can create a smooth finish that will make your walls and ceilings look as good as new.
When to Use Spackle
If you’re planning to repair small holes and cracks, particularly on interior walls, you might be wondering whether to use spackle or joint compound. While both products are used for filling holes and cracks in walls, there are some differences that you should be aware of in order to make an informed decision. So, let’s explore when using spackle is the best option.
Small Holes and Cracks
When it comes to filling small holes and cracks on interior walls, spackle is the ideal choice. Spackle is a lightweight material that is easy to work with and dries quickly. Here are some instances when you should use spackle for small holes and cracks:
- Nail Holes: Nail holes are common on walls and can be easily filled using spackle. Simply apply a small amount of spackle over the hole using a putty knife, allow it to dry, and then sand it down to create a smooth finish.
- Small Cracks: Small cracks on walls can also be filled with spackle. Apply the spackle using a putty knife and then smooth it down using a damp sponge. Once the spackle is dry, sand it down to create a perfect finish.
- Wall Imperfections: If you notice any imperfections on your walls such as dents or small holes, spackle can cover them up effectively. Simply apply a small amount of spackle over the imperfection and smooth it out using a putty knife.
Spackle is great for small holes and cracks on interior walls as it dries quickly and can be sanded down easily for a smooth finish. However, for larger holes and cracks or for exterior surfaces, joint compound would be the better choice.
Interior Walls
Interior walls can easily develop small holes and cracks due to wear and tear over time. Spackle is ideal for filling these small imperfections as it is lightweight and easy to apply. Here are some steps to follow when using spackle on interior walls:
- Clean the area: Make sure the area where you will apply spackle is clean and free of debris or dust. Use a soft cloth or vacuum to clean the area before applying.
- Apply the spackle: Use a putty knife to apply a thin layer of spackle over the hole or crack. Make sure you apply the spackle evenly over the entire area.
- Let it dry: Allow the spackle to dry completely according to the manufacturer’s instructions. This usually takes a few hours.
- Sand: Once the spackle is dry, use fine-grit sandpaper to smooth out the area. Be gentle and take your time to avoid damaging the surrounding wall.
- Repeat if necessary: If the hole or crack is still visible after sanding, repeat the process until it is completely filled and smooth.
In contrast, joint compound is more suitable for larger holes and cracks on interior walls as it is more durable and can withstand more pressure. For instance, if a section of drywall needs to be replaced due to damage or extensive moisture exposure, joint compound is the best option for filling in the gaps and for creating a seamless surface. However, it is important to note that large repairs may require multiple layers of joint compound, which should be allowed to dry completely between applications. Once the joint compound has dried, it can be sanded smooth and painted over to match the rest of the wall.
Quick Repairs
When you need to make a fast repair around your home, spackle is a great choice to have on hand. Its fast-drying formula ensures that you can quickly patch any small holes or cracks without having to wait a long time for it to dry. Some quick repairs that spackle can be used for include:
- Filling nail holes from hanging pictures or artwork
- Patching small cracks in the wall
- Covering small dents from furniture or accidental damage
- Filling small gaps around moldings or trim
- Smoothing out uneven surfaces on walls or ceilings
Spackle is also easy to apply with a putty knife, making it a great option for DIY projects or someone who is not experienced in home repairs. It’s an affordable solution that can be found at any hardware store and can be applied quickly and easily. When you have small repairs that need to be done quickly, spackle is your go-to product.
When to Use Joint Compound
When faced with larger holes or cracks in walls, using spackle may not be enough to properly fill and repair the damage. This is where joint compound comes in. Joint compound is a versatile material that can be used for a variety of repair and renovation projects, both inside and outside the home. Knowing when to use joint compound versus spackle is crucial to achieving a professional-looking finish that will last for years to come. In this section, we will discuss the specific situations where joint compound is the better choice for repairing walls and surfaces.
Large Holes and Cracks
When it comes to filling large holes and cracks in walls or ceilings, joint compound is the better choice over spackle. Joint compound is designed to be thicker and more durable than spackle, making it better suited for larger jobs that require a stronger hold. Here are some instances where joint compound is the right choice for large holes and cracks:
- Deep Holes: If the hole or crack is deeper than 1/4 inch, spackle may not provide enough support. Joint compound can fill deep holes and provide a solid base for further patching or painting.
- Structural Damage: If the hole or crack is the result of significant structural damage, joint compound is the better option. It can provide a stronger hold that will last longer, providing a more permanent repair solution.
- Multiple Layers: If you need to layer your repair, joint compound is the smarter choice. It can be built up in layers to provide added strength and support without cracking or pulling away from the wall.
- Exterior Walls: If you need to fill holes or cracks on exterior surfaces, joint compound is better. Due to the nature of exterior home maintenance, it’s essential to use a more durable solution like joint compound that can withstand harsh weather conditions.
- DIY Projects: If you’re working on a DIY project that requires patching, joint compound is the better long-term solution. It may take longer to dry and set, but it provides a more solid base that will stand up to wear and tear over time.
Remember, always follow safety precautions by using proper protective gear like masks and goggles when using joint compound.
Exterior Surfaces
When it comes to filling holes and cracks on exterior surfaces, joint compound is the better choice. This is because joint compound is more durable and can withstand harsh weather conditions better than spackle. Here are some instances when joint compound can be used on exterior surfaces:
- Large Holes and Cracks: If you have large holes and cracks to fill on your exterior walls, joint compound is the ideal material for the job. Its thick consistency makes it easy to fill large gaps and holes without cracking or shrinking.
- Uneven Surfaces: Exterior walls are often uneven, and joint compound can help to smooth out these surfaces. By applying a layer of joint compound, you can create a smooth surface that looks great and provides a good base for painting or other finishes.
- Repairing Stucco: If you have a stucco exterior, joint compound can be used to repair any cracks that may have formed. Stucco surfaces are notoriously difficult to repair, but joint compound can help to fill in any gaps, creating a smooth surface that blends seamlessly with the rest of the wall.
Although joint compound is more durable, it’s important to note that it shouldn’t be used on all types of exterior surfaces. For example, if you have a brick exterior, joint compound won’t adhere properly, and you’ll need to use a different type of filler. Similarly, if you have a wooden exterior, you’ll need to use a wood filler instead of joint compound.
Skim Coating
Skim coating is a technique used for smoothing out rough surfaces and creating a perfect and even finish. This technique involves applying a thin layer of joint compound over the surface before painting or wallpapering. Skim coating is a time-consuming process that requires patience and skill. It is not recommended for beginner DIYers.
When to Use Skim Coating
Skim coating is used when the surface has imperfections like bumps, ridges, and uneven textures. It is a commonly used technique when remodeling older homes that might have walls with multiple layers of paint or wallpaper. Skim coating can help to create a fresh and smooth surface that will make painting or wallpapering easier.
How to Skim Coat
Before starting the skim coating process, make sure that the surface is clean and free of any debris, dust, or grease. Any loose paint or wallpaper should be removed, and the wall should be patched and sanded smooth. The process of skim coating involves the following steps:
| Step 1: | Clean the surface |
| Step 2: | Mix the joint compound to a thin consistency |
| Step 3: | Apply the first coat of joint compound with a trowel or putty knife at a 45-degree angle |
| Step 4: | Let the first coat dry completely |
| Step 5: | Sand the first coat with a fine-grit sandpaper until the surface is smooth |
| Step 6: | Apply a second coat of joint compound and let it dry completely |
| Step 7: | Sand the second coat with a fine-grit sandpaper until the surface is completely smooth |
| Step 8: | Inspect the surface for any imperfections and sand again if necessary |
Tips for Skim Coating
Skim coating is a time-consuming and challenging process that requires skill and patience. Here are some tips to help you get the best results:
- Use a high-quality joint compound that is formulated specifically for skim coating.
- Work in small sections and work quickly to avoid the joint compound from drying out.
- Use a trowel or putty knife to apply the joint compound with a feathered edge.
- Let each coat dry completely before sanding and applying the next coat.
- Use a fine-grit sandpaper to sand the surface between coats.
- Inspect the surface for any imperfections and sand again if necessary.
Conclusion
Skim coating is a technique used for creating a smooth and flawless surface. It is a time-consuming process that requires skill and patience. If you are a beginner DIYer, it is recommended that you practice on small surfaces first. However, if you are unsure about your ability to skim coat, it is best to hire a professional to do the job for you.
How to Use Spackle and Joint Compound
Once you’ve determined whether spackle or joint compound is the best option for your particular project, it’s important to know how to use them effectively. Proper preparation and application techniques can make all the difference in achieving a smooth and flawless finish. In this section, we will discuss the step-by-step process for using spackle and joint compound, including preparation, application, and sanding. We will also provide some helpful tips for making the process easier and more efficient. By following these guidelines, you can make your repairs look as good as new.
Preparation
Preparing the area before using spackle or joint compound is essential for achieving a smooth and seamless finish. Here are the steps you should follow for preparation:
- Clean the surface: Before applying any filler, make sure the surface you are working on is clean and free of dust, debris, and loose paint. Use a damp cloth or sponge to wipe down the area and let it dry completely.
- Choose the right type of filler: Assess the size and type of hole or crack you’re filling and choose the appropriate filler accordingly. Using spackle for large holes or joint compound for small ones will result in an uneven finish.
- Get the right tools: You will need a putty knife, sandpaper, and a joint tape for using joint compound. For spackle, a smaller putty knife is usually sufficient. Make sure your tools are clean and in good condition.
- Prime the surface: If you are planning to paint the surface after filling the holes or cracks, it is advisable to prime it before applying the filler. This will help the paint adhere better and prevent the filler from showing through.
By following these steps, you can ensure that the surface is ready for the filler to be applied, and that the end result will be a smooth and professional finish.
Application
To apply spackle, follow these steps:
- Using a putty knife, scoop a small amount of spackle onto the blade.
- Hold the knife at a 45-degree angle to the wall and apply the spackle to the hole or crack, pressing firmly to fill the space completely.
- Smooth out the spackle with the knife, being sure to leave a flat and even surface that is level with the surrounding wall.
- Allow the spackle to dry completely according to the manufacturer’s instructions.
- After the spackle is dry, use fine-grit sandpaper to lightly sand the surface until it is smooth and even with the surrounding wall. Be careful not to sand too hard and remove too much of the spackle, as this can create a depression in the wall.
- Finally, wipe the area clean with a damp cloth to remove any dust or debris.
To apply joint compound, follow these steps:
- Using a putty knife, scoop a small amount of joint compound onto the blade.
- Hold the knife at a 45-degree angle to the wall and apply the joint compound to the hole or crack.
- Using a wider putty knife, spread the joint compound evenly over the area, feathering the edges outward to create a smooth transition to the surrounding wall.
- Allow the joint compound to dry completely according to the manufacturer’s instructions.
- Once the joint compound is dry, use a fine-grit sandpaper to lightly sand the surface until it is smooth and even with the surrounding wall. Avoid sanding too much, as this can create a depression in the wall.
- Wipe the area clean with a damp cloth to remove any dust or debris.
Note: It’s important to work slowly and carefully when applying spackle or joint compound to ensure a smooth, even finish. Additionally, be sure to use the correct tools for the job, including the right-sized putty knife and sandpaper.
Sanding
After applying spackle or joint compound, it is important to sand the surface to create a smooth finish. Sanding can be done by hand or with a sanding tool. Here are some tips for sanding:
| Step 1: | Allow the spackle or joint compound to dry completely before sanding. |
| Step 2: | Use a fine-grit sandpaper or sanding sponge to sand the surface. Coarse-grit sandpaper can cause scratches and damage the surface. |
| Step 3: | Sand in a circular motion or back-and-forth motion, depending on the surface being sanded. For corners and edges, use a sanding block to prevent over-sanding. |
| Step 4: | Clean the surface with a damp cloth or sponge to remove dust and debris. Allow the surface to dry completely before priming or painting. |
It is important to wear protective gear, such as a dust mask and safety goggles, while sanding to avoid inhaling dust and to protect your eyes. Additionally, do not over-sand the surface, as this can create unevenness. Sanding should only be done after the spackle or joint compound has completely dried, as sanding a wet surface can cause damage.
Sanding is an important step in achieving a smooth and professional-looking finish when using spackle or joint compound to fill holes or cracks. Following these tips can help ensure that the sanding process is successful and the finished surface looks great.
Tips for Using Spackle and Joint Compound
When working with spackle and joint compound, it’s important to keep a few tips in mind to ensure a successful outcome.
Tip 1: Start with a small amount of product and gradually build up as needed. Spackle and joint compound are meant to be applied in thin layers, so it’s better to apply multiple coats rather than one thick coat.
Tip 2: Use a putty knife or trowel to apply the product, spreading it evenly across the surface being repaired. Smoothing the edges of the repair area with the putty knife will also help the patch blend in with the surrounding surface.
Tip 3: Be sure to let each layer of spackle or joint compound dry completely before sanding or applying additional layers. This may take several hours, depending on the thickness of the layer and the humidity in the room.
Tip 4: When sanding, use a fine-grit sandpaper and work gently, using smooth strokes in only one direction. Sanding too aggressively or in a circular motion can create scratches and grooves in the repair area, which will be visible when painted.
Tip 5: It’s important to clean up any excess spackle or joint compound before it dries, as it can be difficult to remove once it hardens. Wipe away any excess with a damp cloth or sponge, being careful not to disturb the patch.
Tip 6: If applying spackle or joint compound to a textured surface, choose a product with a similar texture to ensure a seamless repair.
Tip 7: For larger repairs, consider using a mesh patch or joint tape to reinforce the repair and prevent cracking or crumbling over time.
By following these tips, you can ensure that your repairs with spackle and joint compound are successful and long-lasting, leaving your walls and ceilings looking smooth and even.
Conclusion
In conclusion, knowing when to use spackle versus joint compound for filling holes and cracks is key to achieving a professional finish in your DIY projects. Spackle is ideal for small holes and cracks on interior walls, quick repairs, and minor touch-ups. On the other hand, joint compound is better suited for larger holes and cracks, exterior surfaces, and skim coating.
When preparing to use spackle or joint compound, it’s important to properly prepare the surface by cleaning and priming it. Application should be done carefully, making sure to fill the holes or cracks evenly and building up the surface as necessary. Sanding should also be done with care to ensure a smooth, even finish.
In using these materials, it’s important to keep in mind that spackle dries quickly and should be used in thin layers, while joint compound takes longer to dry and can be applied in thicker layers. It’s also important to use the right tools for the job, such as a putty knife and sandpaper.
In summary, knowing when to use spackle versus joint compound and following proper application techniques can make a big difference in the final outcome of your DIY project. With some patience and attention to detail, you can achieve a professional-looking finish that will be sure to impress.
Frequently Asked Questions
What is the difference between spackle and joint compound?
Spackle is a lightweight material that is primarily used to fill small holes and cracks in interior walls. Joint compound, on the other hand, is a heavier material that is used to cover larger holes, seams between drywall sheets, and for other more heavy-duty applications.
Can you use spackle for outdoor repairs?
No, spackle should not be used for outdoor repairs as it is not weather-resistant and can break down over time.
What type of holes should I use spackle for?
Spackle is best used for small holes and cracks, typically less than 1/4 inch in diameter.
Can joint compound be used for small holes?
Yes, joint compound can be used for small holes, but it may be overkill for very minor repairs.
Is joint compound difficult to work with?
Joint compound can be tricky to work with, especially for beginners, but with practice, most people can get the hang of it.
Can joint compound be used for skim coating?
Yes, joint compound is commonly used for skim coating, which is the process of applying a thin coat of joint compound to a surface to create a smooth, even finish.
Should I sand spackle or joint compound?
Yes, both spackle and joint compound should be sanded after they have dried to create a smooth, even finish.
Can I paint over spackle or joint compound?
Yes, both spackle and joint compound can be painted over once they have dried and been sanded.
How long does it take for spackle to dry?
The drying time for spackle varies based on the type of spackle being used, but it typically takes around 30 minutes to an hour to dry.
How long does it take for joint compound to dry?
The drying time for joint compound also varies based on the type of material being used, but it usually takes several hours to overnight to dry completely.