Introduction
Oil painting on wood is a revered practice among artists, celebrated for its unique texture and depth. Understanding the various factors that influence the drying time of oil paint on wood is crucial for achieving the desired results and ensuring a successful creative process.
From the type of paint used to the preparation of the wood surface, each element plays a significant role in how quickly the paint dries. This article delves into these influences, offering insights and techniques to help artists navigate the complexities of oil painting on wood effectively.
Factors Influencing the Drying Time of Oil Paint on Wood
Type of Oil Paint: Drying Time on Wood
Oil painting on wood is cherished by artists for its distinctive texture and finish. However, grasping the drying time of oil paint on wood is vital for attaining the desired artistic outcome. A variety of factors can affect the drying time, making it essential to understand these elements to avoid common mistakes and ensure a seamless painting experience.
Factors Influencing Drying Time
Numerous factors determine how long oil paint will take to dry on wood. These include the specific type of oil paint, the thickness of the paint application, the wood species, and the surrounding environmental conditions such as temperature and humidity.
- Type of Oil Paint: Different oil paints exhibit varying drying times. For example, fast-drying alkyd paints can cure within 24 hours, while traditional oil paints may require several days to weeks.
- Application Thickness: Thicker applications of paint generally take longer to dry than thinner coats. Applying multiple thin layers will lead to quicker and more uniform drying than a single thick layer.
- Wood Type: The porosity of the wood can influence drying times; porous woods may absorb some oil, potentially hastening the drying process, while non-porous woods may not have this effect.
- Environmental Conditions: High humidity and cooler temperatures can impede the drying process, while warm and dry environments can enhance it.
Step-by-Step Guide to Ensuring Proper Drying
To facilitate optimal drying of your oil paint dries correctly on wood, consider the following steps:
- Prepare the Wood Surface: Sand the wood to achieve a smooth finish. Applying a primer or gesso will seal the wood and prevent excessive oil absorption.
- Choose the Right Paint: Select a type of oil paint suitable for suitable for your project. Fast-drying alkyd paints are perfect for quicker results, while traditional oil paints provide more time for blending.
- Apply Thin Layers: Begin with thin layers of paint. This approach not only promotes faster drying but also allows for gradual color and texture development.
- Optimize Drying Conditions: Position your painted wood in a well-ventilated area with moderate temperatures and low humidity. Avoid direct sunlight, which can lead to uneven drying and cracking.
- Patience is Key: Allow each layer to dry thoroughly before applying the next. Depending on the influencing factors, this may take anywhere from 24 hours to several days.
Advanced Techniques and Tips
For those eager to explore the intricacies of oil painting on wood, consider these advanced techniques:
- Use Drying Agents: Add drying agents like cobalt driers to your paint to expedite the drying process. However, use them judiciously to maintain the paint’s integrity.
- Experiment with Mediums: Combine your oil paints with various mediums, such as linseed oil or turpentine, to modify the drying time and finish.
- Layering Techniques: Employ the “fat over lean” method, where you apply lean (less oily) layers first and gradually increase the oil content in subsequent layers. This practice ensures proper drying and minimizes the risk of cracking.
Common Problems and Solutions
Even with diligent practices, challenges may arise. Here are some typical issues and their solutions:
- Sticky Paint: If your paint remains tacky for an extended period, high humidity may be the culprit. Relocate the piece to a drier environment and consider using a dehumidifier.
- Cracking: Cracking can happen if paint layers dry at different rates. Ensure each layer is fully dry before adding the next, and adhere to the “fat over lean” principle.
- Uneven Drying: To prevent uneven drying, apply consistent, thin layers and maintain a stable environment for your painting.
By comprehending these factors and adhering to these guidelines, you can excel in the art of oil painting on wood, resulting in stunning and durable works.

Wood Surface Preparation
Effectively preparing wood surfaces is essential for achieving a polished finish when working with oil paint. While many artists may believe that oil paint dries rapidly on wood, the reality is that various factors can significantly impact the drying process. In this section, we will explore the critical steps and recommended practices for preparing wood surfaces, along with insights into the drying time of oil paint on wood.
Significance of Wood Surface Preparation
Properly preparing the wood surface prior to painting is vital for ensuring strong adhesion and longevity of the paint. Adequate preparation helps avoid common problems such as peeling, cracking, and inconsistent finishes. Here’s a detailed guide to effectively prepare wood surfaces for painting:
- Clean the Surface: Begin by eliminating any dirt, dust, or grease from the wood using a mild detergent mixed with water. Ensure the wood is completely dry before moving on to the next step.
- Sand the Wood: Use medium-grit sandpaper (120-150 grit) to smooth out any imperfections and create a slightly textured surface that enhances paint adhesion. After sanding, wipe away the dust with a damp cloth.
- Fill Imperfections: Apply wood filler to address any holes, cracks, or dents. Once the filler has dried, sand it down with fine-grit sandpaper (220 grit) and clean the area again.
- Apply Primer: A suitable primer should be applied to the wood surface to improve paint adhesion and ensure a consistent finish. Allow the primer to dry according to the manufacturer’s recommendations before proceeding with painting.
Drying Time of Oil Paint on Wood
The drying time of oil paint on wood can fluctuate based on several factors. Here are some important considerations:
- Type of Oil Paint: Different formulations of oil paint exhibit varying drying times. Traditional oil paints may take 24 to 48 hours to dry to the touch, whereas alkyd-based paints typically dry more quickly, often within 6 to 24 hours.
- Environmental Conditions: Factors such as humidity, temperature, and airflow are crucial in determining drying time. High humidity and cooler temperatures can prolong drying, while adequate ventilation and moderate temperatures (around 70°F or 21°C) can enhance it.
- Paint Thickness: Thicker applications of paint will naturally take longer to dry. Opting for multiple thin coats instead of a single thick layer can facilitate faster and more even drying.
- Wood Type and Preparation: The porosity of the wood can influence how much paint it absorbs, thereby affecting drying time. Properly priming the wood can help create a uniform surface and minimize drying time.
Advanced Techniques and Tips
To optimize drying time and achieve a flawless finish, consider implementing these advanced techniques:
- Use a Drying Medium: Incorporating a drying medium into your oil paint can expedite the drying process. Always adhere to the manufacturer’s guidelines for mixing ratios.
- Controlled Environment: If feasible, work in a controlled environment where you can regulate temperature and humidity levels. Utilizing dehumidifiers or heaters can help create ideal conditions.
- Test Drying Time: Before embarking on your main project, conduct a test on a small, inconspicuous area of the wood to assess the drying time under your specific conditions.
By adhering to these guidelines and recognizing the factors that affect drying time, you can ensure a smooth and durable finish for your wood painting endeavors. Patience and thorough preparation are essential for achieving optimal results with oil paint on wood.
Techniques to Accelerate the Drying Process
Utilizing Drying Agents
While oil painting on wood can yield stunning results, one of the primary hurdles artists encounter is the drying time. The inherent slow drying nature of oil paint can serve as both an advantage and a limitation, depending on the specific requirements of your project. Familiarizing yourself with the function of drying agents and the typical drying durations for oil paint on wood can greatly enhance your efficiency and reduce potential frustrations.
Comprehending Drying Durations
The drying time for oil paint on wood can vary widely, ranging from a few days to several weeks for complete curing. This variability hinges on multiple factors, including the specific oil paint formulation, the thickness of the paint layer, and the surrounding environmental conditions such as humidity and temperature. Generally, a thin application may become touch-dry within 24 to 48 hours, whereas thicker applications could require significantly more time.
Addressing Common Misunderstandings
A prevalent misunderstanding is the belief that all oil paints dry uniformly. In truth, different brands and formulations exhibit distinct drying rates. Moreover, the wood type and its preparation can affect drying speed. Adequately preparing the wood surface through sanding and priming can promote a more consistent drying experience. Drying agents, often referred to as driers or siccatives, can dramatically reduce the drying time of oil paints. These additives are incorporated into the paint to expedite the oxidation process, which is essential for oil paint drying. Here’s a step-by-step guide on how to use drying agents effectively:
- Select the Appropriate Drying Agent: Various drying agents are available, including cobalt, manganese, and lead-based options. Cobalt driers are favored for their effectiveness but should be used judiciously to prevent cracking.
- Incorporate the Agent: Mix a small quantity of drying agent into your oil paint, typically no more than 1-2% of the total paint volume. Excessive use can result in brittleness and cracking.
- Mix Thoroughly: Ensure the drying agent is evenly blended into the paint using a palette knife or stir stick.
- Conduct a Test: Before applying to your main project, test the mixture on a small wood sample to gauge drying time and check for any negative effects.
- Apply the Paint: Proceed to paint your wood surface as you normally would, keeping in mind that the drying time will be reduced due to the agent. Work efficiently to achieve your desired effects.
- Observe Drying Progress: Regularly check the drying status. While the paint may feel dry to the touch within hours, allow additional time for complete curing.
Helpful Hints
- Thin Applications: Apply paint in thin layers to expedite the drying process. Thicker applications can prolong drying time and lead to uneven results.
- Ideal Conditions: Aim to maintain a warm, dry environment to promote faster drying. High humidity and cooler temperatures can hinder the process.
- Ensure Ventilation: Good airflow in your workspace aids the oxidation process and can shorten drying times.
- Incorporate Fast-Drying Mediums: Consider adding fast-drying mediums, such as alkyds, to your oil paint to further enhance drying speed without compromising the paint’s quality.
Oil painting on wood offers a unique and beautiful finish, but one of the biggest challenges artists face is the drying time. Oil paint naturally dries slowly, which can be both a benefit and a drawback, depending on your project needs. Understanding how drying agents work and how long oil paint typically takes to dry on wood can save you time and frustration.
One common misconception is that all oil paints dry at the same rate. In reality, different brands and types of oil paints have varying drying times. Additionally, the type of wood and its preparation can influence how quickly the paint dries. Properly preparing the wood surface by sanding and priming can help achieve a more even drying process. Drying agents, also known as driers or siccatives, can significantly speed up the drying time of oil paint. These agents are added to the paint to accelerate the oxidation process, which is how oil paint dries. Here’s a step-by-step guide to using drying agents effectively:
Environmental Conditions and Oil Paint Drying Time on Wood
Grasping how environmental factors influence the drying time of oil paint on wood is essential for achieving optimal results in your artistic endeavors. A variety of elements contribute to this process, and misconceptions are common. Let’s examine the primary factors that affect drying times and discuss effective strategies to tackle prevalent challenges.
Key Environmental Factors
Numerous environmental conditions can significantly alter the duration it takes for oil paint to dry on wood:
- Temperature: Elevated temperatures typically accelerate the drying process. However, excessive heat may lead to rapid surface drying, which can result in cracking.
- Humidity: Elevated humidity levels can considerably extend drying times. Since oil paint requires oxygen for proper curing, moisture in the air can hinder this essential process.
- Ventilation: Adequate airflow promotes even and efficient drying of oil paint. Insufficient ventilation can trap solvents, thereby prolonging the drying period.
Optimal Conditions for Drying
To achieve the best results, strive to create an ideal environment:
- Temperature: Keep the room temperature between 65-75°F (18-24°C).
- Humidity: Maintain humidity levels around 40-50%.
- Ventilation: Facilitate good airflow by utilizing fans or opening windows, while avoiding direct drafts that can lead to uneven drying.
Common Problems and Solutions
Below are some frequent issues you may encounter along with their solutions:
- Problem: The paint is drying too slowly.
- Solution: Enhance ventilation and ensure the space is warm enough. If humidity is high, consider using a dehumidifier.
- Problem: Paint is drying too quickly, resulting in cracks.
- Solution: Slightly lower the room temperature and minimize direct airflow over the painted surface.
Advanced Techniques
For those aiming to elevate their technique, consider implementing these advanced strategies:
- Layering: Apply thin coats of paint, allowing each layer to dry thoroughly before proceeding with the next. This approach minimizes the risk of cracks and promotes a smooth finish.
- Use of Mediums: Incorporate drying mediums into your oil paint to either hasten or slow down the drying process based on your requirements.
Common Challenges and Solutions
Dealing with Humidity: How Long Does Oil Paint Take to Dry on Wood
Recognizing the role of humidity in the drying time of oil paint on wood is essential for achieving optimal results in your artistic endeavors. Various elements contribute to this, including the specific oil paint formulation, the thickness of the applied layers, and the surrounding environmental conditions. This section aims to clarify these aspects, offering practical tips and advanced strategies to ensure your oil-painted wood surfaces dry effectively.
Understanding the Impact of Humidity
Humidity levels can dramatically affect how oil paint dries on wood. Elevated humidity tends to impede the evaporation of solvents within the paint, resulting in prolonged drying times. On the other hand, lower humidity can accelerate drying, but it may also lead to uneven drying across the surface.
Factors Affecting Drying Time
Several key factors influence the drying duration of oil paint on wood:
- Type of Oil Paint: Different formulations exhibit distinct drying times. For example, alkyd oil paints dry more rapidly than traditional linseed oil-based varieties.
- Thickness of Paint Layers: Thicker applications require more time to dry compared to thinner ones. Ensuring an even application is vital for uniform drying.
- Environmental Conditions: Both temperature and humidity are critical. Ideal drying occurs at moderate temperatures (approximately 70°F or 21°C) and humidity levels between 40-60%.
- Wood Surface Preparation: Well-prepared and sealed wood surfaces enhance paint adhesion and promote more even drying.
Step-by-Step Instructions to Manage Humidity
- Prepare Your Workspace: Create a controlled environment for your painting. Use a dehumidifier in humid conditions or a humidifier in dry settings to maintain optimal humidity levels.
- Apply Thin Layers: For quicker drying, apply oil paint in thin, even coats. This technique allows each layer to dry thoroughly before the next is added.
- Use Drying Agents: Incorporate oil paint mediums with drying agents, such as cobalt drier, to hasten the drying process, particularly in high-humidity situations.
- Monitor Drying Progress: Regularly assess the painted surface. Lightly touch an inconspicuous area to determine if the paint feels tacky or dry, being cautious not to smudge.
- Ventilation: Ensure adequate airflow in your workspace. Utilizing fans can enhance air circulation, aiding in the evaporation of solvents from the paint.
Advanced Techniques
For artists looking to employ advanced methods to manage humidity and drying times, consider the following techniques:
- Layering with Alkyd Mediums: Combine traditional oil paints with alkyd mediums to create faster-drying layers while maintaining quality.
- Heat Application: Gently warm the painted surface with a heat gun or infrared lamp to expedite drying; however, this requires careful handling to prevent damage to the paint or wood.
- Controlled Environment Chambers: For larger projects, consider utilizing a controlled environment chamber that maintains specific temperature and humidity levels to ensure consistent drying conditions.

Avoiding Dust and Debris: The Impact on Oil Paint Drying Time on Wood
Engaging in oil painting on wood can yield stunning results, yet it presents unique challenges, particularly regarding drying time. Dust and debris can adversely affect this process, making it essential to manage these factors for a flawless finish.
Insights into Drying Times
Compared to other painting mediums, oil paint tends to dry more slowly. The drying duration on wood is influenced by various elements, such as the specific oil paint formulation, the thickness of the paint layer, and the surrounding environmental conditions. Generally, oil paint may take from 24 hours to several days to become touch-dry, with complete curing requiring even more time.
Strategies for Maintaining a Clean Drying Environment
To minimize the risk of dust and debris contaminating your newly painted wood surface, consider implementing the following strategies:
- Preparation: Begin by thoroughly cleaning the wood surface before painting. Utilize a tack cloth to eliminate any lingering dust particles.
- Work in a Controlled Space: Select a well-ventilated area that is free from dust. Ideally, choose a room with limited foot traffic and keep windows closed to reduce dust entry.
- Utilize Drop Cloths: Lay down drop cloths on the floor and surrounding surfaces to catch any dust that may be disturbed during your painting session.
- Apply Paint Thinly: Use thin, even layers of oil paint. Thicker applications not only prolong drying time but also attract more dust.
- Protect Your Work: After painting, cover the wood with a clean, dust-free cloth or place it in a dust-free drying box to shield it from airborne particles.
Enhanced Techniques for Dust-Free Drying
For those seeking to further safeguard their work, consider these advanced methods:
- Employ a Humidifier: A slightly humid environment can help reduce dust accumulation. However, be cautious not to increase humidity excessively, as it may hinder drying times.
- Invest in Air Purifiers: Using an air purifier can significantly decrease airborne dust and debris in your workspace.
- Construct Paint Booths: If oil painting is a regular pursuit, think about establishing a small paint booth. These enclosed areas can be fitted with filters to maintain clean air.
Conclusion
By implementing these strategies, you can greatly minimize dust and debris settling on your oil-painted wood surfaces. This not only enhances the visual appeal of your project but also contributes to a smoother, more professional finish. Remember, patience is essential when working with oil paint; hurrying the drying process can compromise the quality of your work.
Historical and Artistic Perspectives on Oil Paint Drying Times
Historical Use of Oil Paints
For centuries, oil paints have been integral to the artist’s toolkit, celebrated for their rich textures and vibrant colors. From the iconic works of Renaissance artists like Leonardo da Vinci to the emotive expressions of Vincent van Gogh, oil paints have significantly influenced the trajectory of art history. However, a common hurdle for artists is grasping the drying times of oil paint, particularly when applied to various surfaces such as wood. This understanding is essential for effectively planning and executing artistic endeavors.
Understanding Drying Time on Wood
The drying times of oil paint can fluctuate based on multiple factors, including the type of wood, the thickness of the paint application, and the surrounding environmental conditions. Generally, oil paint on wood may require anywhere from a few days to several weeks to achieve complete dryness. Let’s explore the key factors that affect this process:
- Type of Wood: The wood’s porosity and texture can greatly influence drying times. For instance, softwoods such as pine absorb paint differently than hardwoods like oak, which can lead to extended drying durations.
- Thickness of Paint Layers: Naturally, thicker applications of oil paint will take longer to dry. While thin layers may dry to the touch within days, thicker applications can remain tacky for weeks.
- Environmental Conditions: Factors like humidity, temperature, and airflow are critical. Warm, dry environments with good ventilation can accelerate drying times, whereas cool, damp conditions can hinder the process.
Tips and Tricks for Managing Drying Times
To effectively manage and potentially expedite the drying process of oil paint on wood, consider the following practical strategies:
- Use Drying Agents: Incorporating mediums such as linseed oil or alkyd mediums can help speed up drying times. However, exercise caution with the quantities to maintain the paint’s consistency.
- Apply Thin Layers: Instead of one thick coat, build your artwork with multiple thin layers. This method not only aids in drying but also enhances the depth and texture of your painting.
- Optimize Your Environment: Ensure your workspace is well-ventilated, warm, and dry. Utilizing a fan or dehumidifier can help regulate humidity levels and facilitate faster drying.
- Patience is Key: Even with optimal conditions, patience remains crucial. Rushing the drying process can lead to issues such as cracking in the paint layer.
Advanced Techniques for Oil Painting on Wood
For artists eager to explore deeper into oil painting on wood, consider these advanced techniques:
- Priming the Wood: Applying a primer or gesso to seal the wood surface before painting can create a smoother application and prevent excessive oil absorption, which may affect drying times.
- Layering with Glazes: Employ glazing techniques to enhance clarity and depth in your paintings. Each glaze should be thin and allowed to dry fully before adding subsequent layers.
- Experiment with Textures: Utilize tools such as palette knives or sponges to create varied textures. This can produce intriguing effects and influence how light interacts with the paint, enhancing the overall visual impact of your work.
Common Problems and Solutions
Artists may encounter several issues with oil paint drying on wood; here are some common challenges and their solutions:
- Sticky Surface: A sticky painting may result from excessive oil or overly thick layers. Consider applying a thin layer of drying medium and placing the artwork in a warm, dry environment.
- Cracking: Cracks may develop if the paint dries too rapidly or if there are inconsistencies in the application. Ensure even coverage and avoid exposing the painting to direct sunlight or extreme temperatures.
- Yellowing: Over time, oil paints can yellow, particularly in low-light settings. To mitigate this, opt for high-quality, lightfast paints and store your artwork in well-lit areas.
By comprehending the nuances of oil paint drying times on wood, you can significantly enhance your painting experience. Implementing these tips and techniques will help you achieve stunning, enduring results in your artistic creations.
Modern Artistic Techniques
Artists looking to enhance their oil painting skills on wood must pay attention to drying times. This knowledge is crucial as it affects both the creative process and the durability of the finished piece. A common misconception is that oil paint dries at the same rate on all surfaces; however, the unique properties of wood can greatly alter the drying period.
Factors Influencing Drying Time
Several factors influence how quickly oil paint dries on wood. These include the wood species, the application thickness of the paint, and the surrounding environmental conditions. Here are some key points to consider:
- Wood Species: Different types of wood absorb oil paint can affect drying times. Hardwoods like oak and maple may take longer to dry compared to softer woods such as pine.
- Application Thickness: Thicker layers of oil paint naturally require more time to dry. Opting for multiple thin layers can help speed up the drying process.
- Environmental Factors: High humidity and cooler temperatures can slow down drying, while a warm and dry environment can facilitate quicker drying.
Step-by-Step Instructions for Optimizing Drying Time
- Prepare the Wood Surface: Sanding the wood provides a smooth base for the oil paint, enhancing adhesion and promoting even drying.
- Apply a Primer: Use a suitable primer for wood to seal the surface. This can help reduce excessive oil from the paint absorption, which may prolong drying times.
- Thin Layers: Apply oil paint in thin, uniform coats. Thicker applications can lead to uneven drying and potential cracking.
- Use Drying Mediums: Consider adding a drying medium to your oil paint. These additives can help reduce drying times without compromising the quality of the paint.
- Optimize Environment: Ensure your workspace is well-ventilated and maintains a stable temperature. A dehumidifier can assist in controlling moisture levels.
Common Problems and Solutions
Artists often encounter challenges when painting with oil on wood. Here are some common issues and their solutions:
- Sticky Surface: A tacky paint surface may indicate high humidity. Using a fan or dehumidifier can help lower moisture levels in the area.
- Cracking Paint: Cracks can result from applying paint too thickly. Always prefer thinner applications and ensure each layer is fully dry before adding another.
- Uneven Drying: This can occur due to insufficient surface preparation. Proper sanding and priming of the wood can provide a consistent base for the paint.
Advanced Techniques
For those interested in modern techniques, exploring glazing and impasto can be particularly rewarding:
- Glazing: This technique involves layering thin, transparent coats of paint over a dry base, which adds depth and luminosity to the artwork.
- Impasto: This method technique uses thick applications of paint to create texture. Although it requires longer drying times, it adds a three-dimensional quality to the painting.
By understanding and implementing these techniques, artists can effectively manage the drying time of oil paint on wood, leading to more predictable and satisfying artistic results.
In summary, mastering the drying time of oil paint on wood involves recognizing the influence of wood type, paint thickness, and environmental factors. With the right preparation and techniques, artists can achieve efficient and even drying, allowing them to realize their creative visions without unnecessary delays.

Conclusion
In conclusion, understanding the intricacies of oil paint drying time on wood is vital for artists who aspire to achieve a refined and professional finish. Throughout this discussion, we have highlighted several key factors that influence drying time, including the specific type of oil paint selected, the meticulous preparation of the wood surface, and the environmental conditions present during the painting process. Each of these elements plays a crucial role in determining how quickly the paint will dry, which in turn affects both the workflow and the final aesthetic of the artwork.
To optimize drying times, artists should consider using fast-drying oil paints, such as alkyds, which can cure in as little as 24 hours, compared to traditional oil paints that may take days or even weeks. Additionally, proper surface preparation—such as sanding the wood and applying a suitable primer—can enhance adhesion and promote quicker drying. Artists should also be mindful of their workspace; maintaining a stable temperature and low humidity can significantly reduce drying times.
By grasping these factors, artists can make strategic choices that not only streamline their creative process but also enhance the quality of their work. Whether it involves utilizing drying agents or taking steps to mitigate environmental challenges, a proactive approach can lead to more successful outcomes. Furthermore, appreciating the historical significance of oil painting and its evolution can inspire contemporary practices and foster innovation.
Ultimately, the experience of oil painting on wood is both enriching and multifaceted. By embracing the complexities of drying times, artists can fully unleash their creativity while minimizing potential frustrations. Engaging with these insights will undoubtedly lead to a more satisfying and productive artistic journey.
FAQ
Can I use a hairdryer to speed up the drying time of oil paint on wood?
No—use a fan or place the artwork in a well-ventilated area instead, as direct heat can cause the paint to crack.
What should I do if my oil paint feels sticky after drying?
Yes, if the paint remains tacky, it may need more time to cure; ensure it is stored in a cool, dry place away from humidity.
Is it safe to paint over partially dried oil paint on wood?
No—wait until the paint is fully dry to avoid lifting the underlying layers and compromising the finish.
How can I tell when my oil paint on wood is completely dry?
Yes, if the surface feels firm and no longer tacky, it is likely dry; however, consider waiting longer for complete curing before varnishing.

