Elena Rossi
There are many ways to cover over a picture painting without causing damage. For example, if you are looking to cover up pencil marks, you can use an eraser or gesso. If you are looking to cover up an entire painting, you can use household paint, but be aware that household paint won't have as much opacity and will have a greater colour shift when it dries. If you are looking to cover up a painting on a wall, you can use a specialised hanging system to avoid damaging the wall. To protect an acrylic painting, you can use a varnish or a glass frame.
Characteristics of covering over a picture painting without damage
| Characteristics | Values |
|---|---|
| Hanging artwork | Use picture rails, picture-hanging systems, or tracks, instead of nails, hooks, or sticky strips. |
| Varnish | Use liquid or spray varnish to protect the painting from dust, dirt, scratches, sunlight, and other minor debris. |
| Isolation coat | Apply an isolation coat of diluted gloss to protect the painting in case the varnish is removed. |
| Glaze | Use thin layers of transparent colour to alter the appearance of the colour underneath. |
| Gesso | Use gesso to cover pencil marks, but be careful as it can create a mess. |
| Masking fluid | Use masking fluid to cover the portrait and protect it while painting the background. |
| Restoration | Minor damage to an acrylic painting can be restored by an artist. |
| Cleaning | Avoid touching the painting with your fingers. Use a soft cloth to gently wipe down the painting without wetting it. |
| Storage | Keep paintings in a safe place away from potential punctures or scratches. |
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What You'll Learn
- Use varnish to protect paintings from dust, dirt, scratches, and sunlight
- Avoid touching paintings with fingers to prevent discoloration
- Use Blu-Tack to hang art without damaging walls
- Avoid using tape to hang pictures as it can peel and discolour walls
- Use a filler and paint to repair any damage to walls
Use varnish to protect paintings from dust, dirt, scratches, and sunlight
Dust, sunlight, and other environmental factors can significantly affect a painting, undermining its artistic value and making it less of a good investment. Varnishing is a great way to protect your paintings from these elements. Varnish is a clear and transparent film that you paint over your artwork. It protects against dust, dirt, and moisture, preventing these elements from contacting the paint layer directly.
Varnish also provides physical protection, reducing the risk of scratches, chips, or abrasions. It enhances colour depth, unifies gloss, and improves the presentation of the artwork. It also protects paintings from UV exposure, which can cause fading and yellowing.
Varnish comes in gloss, satin, or matte finish, depending on the surface you want to apply it to. Generally, one or two thin coats are sufficient. Thick, short-bristle brushes are best for thicker varnishes.
However, it is important to note that not all paintings should be varnished. For instance, the Smithsonian recommends against varnishing acrylic paintings. This is because acrylic resin proprietary varnishes have similar solubilities to those of acrylic paint, requiring the use of solvents that might damage the paint layer for their removal.
Instead of varnishing, you can put your acrylic paintings behind glass or plexiglass to protect them from dust and dirt.
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Avoid touching paintings with fingers to prevent discoloration
While creating art, it is essential to avoid touching paintings with bare fingers to prevent discoloration and damage. The tips of our fingers carry sweat, oils, and acids, which can transfer onto the artwork, causing stains and discolouration. Metals, painted surfaces, works on paper, textiles, and photographs are all susceptible to damage from unclean hands.
To avoid this, it is crucial to handle artwork with clean hands or, better yet, wear gloves when creating or handling art. This is especially important when working with metals, as they are easily affected by acids and salts, leaving permanent fingerprints.
Additionally, it is essential to be mindful of other objects that may come into contact with the artwork. Clothing, jewellery, and even fingernails can inadvertently scratch or rub against the surface, causing damage. Shoes and boots carry grit, salt, and dirt that can abrade and corrode works of art, so it is advisable to take extra care when handling artwork while wearing these.
To protect artwork from accidental touching, museums often place smaller objects in cases and display sensitive paintings behind clear acrylic sheets. While this may not be practical for all settings, it is essential to handle artwork with care and take precautions to avoid touching it with bare fingers to ensure its preservation.
By following these precautions, you can help prevent discoloration and damage to paintings, ensuring their longevity and preserving the artist's intended appearance.
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Use Blu-Tack to hang art without damaging walls
Although Blu Tack is a popular adhesive for hanging art, it should be used with caution as it may cause damage to walls. Blu Tack's adhesive characteristics may cause paint to peel away from plaster walls, especially if the walls have not been properly prepared before painting or if the plasterboard has insufficient paint. In such cases, the Blu Tack will stay adhered to the paint surface and gradually fall off with the weight of the item it's attached to, taking the paint with it.
To avoid paint peeling when using Blu Tack, ensure that walls are properly prepared and primed before painting. When removing Blu Tack from walls, it is important to roll it off rather than pulling it off. Using a citrus stain remover to soften the edges can also help.
However, even with proper removal techniques, there is still a risk of damage to walls. Blu Tack can become stuck in the crevices of porous surfaces, such as brick walls, and be difficult to remove. If this occurs, it may be necessary to gouge out the Blu Tack and hide it with grout. Additionally, the mineral oil in Blu Tack can seep into porous surfaces like wallpaper and dry-painted walls, leaving behind greasy stains that are difficult to remove. These stains may require costly repairs or repainting.
Due to the potential for damage, some landlords restrict the use of Blu Tack for hanging items in rental properties. To avoid unexpected damage and potential deductions from security deposits, it is important to check with your landlord before using Blu Tack and consider safer alternatives.
Instead of Blu Tack, there are several alternative methods for hanging art without damaging walls. One option is to use a specialised hanging system with picture rails that are easily removable and customisable to fit any wall material. Another option is to use adhesive products designed to hold various weights, such as Command Poster Strips, which can be removed cleanly without leaving residue. Washi tape is another gentle alternative that comes in various colours and patterns, adding a creative touch while being safe for walls. For lightweight items, decorative low-tack tape or peel-and-stick wallpapers and decals can be used to add personality without permanent alterations.
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Avoid using tape to hang pictures as it can peel and discolour walls
While using tape to hang pictures may seem like a convenient option, it is important to be aware of the potential drawbacks. Tape, especially when left on walls for extended periods, can cause peeling and discolouration of the wall surface. This can result in unsightly blemishes and damage that may require repairs and paint jobs to rectify, which can be costly and time-consuming.
The adhesive properties of tape can vary, and over time, the adhesive may weaken, causing the tape to lose its grip and the picture to fall. This can be a particular concern for valuable or fragile artwork, as the sudden impact of a fall could result in damage to the piece itself or the surrounding area.
Additionally, certain types of tape, such as those with stronger adhesives, may leave behind residue when removed. This residue can be challenging to remove and could require the use of specialised cleaning products or techniques to avoid damaging the wall surface.
To avoid these issues, it is recommended to use alternative methods for hanging pictures. One option is to use specialised picture rails or hanging systems designed to securely hold pictures and artwork without causing damage to walls. These systems can be easily removable and customised to fit various wall materials, ensuring a safe and seamless display of your artwork.
Another alternative is to use removable adhesive hooks specifically designed for hanging purposes. These hooks provide a more secure option than tape and can be easily removed without leaving marks or residue on the wall. However, it is important to consider the weight limitations of these hooks and choose the appropriate option for your artwork's size and weight.
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Use a filler and paint to repair any damage to walls
Filler and paint can be used to repair damage to walls and ensure a seamless finish. Firstly, inspect the damaged area and remove any loose paint, dust, or crumbling plaster with a scraper or stiff brush. If there is grease or staining, clean the area with a damp cloth and mild detergent, then allow it to dry.
Next, use fine-grit sandpaper to lightly sand the area, creating a rough texture for the filler to adhere to. Use a filling knife to apply a suitable filler for the type of damage, pressing it firmly into cracks or holes and ensuring there are no air pockets. For deep gaps, build up the filler gradually in thin layers, allowing each layer to partially dry before adding more.
Once the filler is dry, sand it down so that it is flush with the wall. Then, prime the repaired area to seal the filler and provide a surface for the paint to adhere to. Finally, apply your chosen paint colour to the entire wall for a seamless finish.
This process can help to restore walls to their original condition, maintaining the integrity of the wall and preventing further deterioration. It is an effective way to repair damage caused by hanging pictures, such as holes and discolouration from tape, and create a polished and well-maintained environment.
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Frequently asked questions
You can use a high-quality 100% acrylic resin varnish on your paintings. Varnish also enhances the depth of the colours and makes the painting easy to clean.
If your painting has a flat, uniform surface, use a liquid varnish. If your painting has a lot of layers or textures, use a spray varnish.
Place your canvas on a flat surface and use a flat, clean paintbrush to apply the varnish. Start at the top left of the canvas and brush the varnish on using even strokes, moving to the far right of the canvas before working your way down.
Boil about a cup of water and apply the hot water to the back of the canvas where the dent is. Then, paint an "X" across the back with the water. The hot water will cause the canvas to contract, and the dents will be pulled out.
