Protecting Your Art: Drying Techniques For Outdoor Painting

how to protect your paintings while they dry outside

Protecting your paintings from damage is an essential part of building an art collection. While drying paintings outside, factors such as sunlight, dust, dirt, and humidity can cause damage. To prevent this, you can place your paintings in a dust-proof drying box made of cardboard or wafer board, or use a vertical drying rack with a sheet over it. You can also store your paintings flat in a cool, dry, and dark place, using acid-free tissue paper or bubble wrap for protection. To avoid damage from sunlight, hang your paintings away from windows and use curtains, UV-blocking glass, or UV-filtering acrylic plexiglass. Additionally, varnishing your paintings can protect them from dust, fading, and moisture damage.

Characteristics and Values

Characteristics Values
Location Outside, in a garage, or a dust-proof drying box
Positioning Angled against a wall, paint-side in
Covering Cardboard box, sheet, palette wrap, bubble wrap, glassine, acid-free tissue paper
Temperature 65-70°F in winter, 70-75°F in summer
Humidity 40-60%
UV protection UV-filtering acrylic plexiglass, UV-blocking window film, curtains, varnish
Cleaning Soft non-abrasive cloth, microfiber towel, soft-bristled paintbrush

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Keep paintings away from direct sunlight

Keeping paintings away from direct sunlight is essential to preserving their colour and structure. Exposure to intense sunlight can drain the colour from paintings, causing fading and discolouration. This is especially true for watercolour paintings and other works on paper, which are highly susceptible to fading and colour bleaching. Even acrylic and oil paintings, which are made with harder pigments, are still at risk when exposed to bright sunlight for extended periods.

To protect your paintings from direct sunlight, avoid hanging them near windows or in areas of your home that receive a lot of natural light. If your paintings are in a room with windows, use curtains or shades during peak sunlight hours to minimise the amount of sunlight they are exposed to. You can also apply a UV film to your windows, which will help filter out damaging UV rays and protect your artwork.

If you want to hang paintings in a room that receives direct sunlight, consider using UV-filtering acrylic plexiglass or UV-protected glass to frame your artwork. This will help shield your paintings from the harmful effects of UV rays. Additionally, ensure that the room temperature remains regulated, as extreme heat or cold can also damage your artwork. The optimal temperature to avoid damage to acrylic and oil paintings is around 16-26 degrees Celsius.

By taking these precautions, you can help protect your paintings from the damaging effects of direct sunlight and ensure their longevity.

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Protect paintings from dust

When it comes to protecting your paintings from dust, there are several precautions you can take. Firstly, it is important to understand that dust is one of the most damaging elements to artwork, reducing its value and lifespan.

If you are painting with oils, it is recommended to keep the artwork varnished to protect it from dust particles. Varnish creates a clear, transparent film over the painting, increasing its lifespan. It comes in gloss, satin, or matte finish, and also protects against UV exposure and moisture damage. You can use a flat varnishing brush or a Chamois to apply the varnish. Start from the top of the painting and work your way down, covering all spaces in a criss-cross pattern.

Alternatively, you can use a dust-proof drying box made from cheap materials such as cardboard, wafer board, or lumber. You can also use a vertical drying rack and place a sheet over it to protect the paintings from dust. If you are drying paintings in a garage, be aware that air movement through cracks in doors can allow dust to reach the paintings.

For watercolours, apply a fixative to prevent colours from smearing, and mount your artwork before putting an additional coat to seal the work. Store your artwork in a cool, dry, and dark place, and avoid direct sunlight to prevent discolouration.

If your paintings are already varnished and have a thin layer of dust, use a dry microfibre cloth or a feather duster to gently wipe the surface. Do not use liquids such as water or household cleaning products, as these can damage the painting.

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Use a drying rack

Using a drying rack is an effective way to protect your paintings while they dry outside. Drying racks can be purchased or built at home, and they can accommodate multiple paintings of various sizes.

If you're handy, consider building your own drying rack to your desired specifications and space requirements. For example, you can create "drying slots" by using picture wire and screws to vertically store your paintings. This design can be customised to fit your space and the size of your paintings. Another option is to use eyelet screws and picture wire to create slots that hold your paintings securely in place.

If you prefer a ready-made solution, you can purchase a wire dish drying rack, which works well for small panels. You can also opt for a large-scale version made from plywood or wafer board, which can hold multiple paintings.

To protect your paintings from dust and other contaminants, you can cover your drying rack with a sheet or another material. Ensure that whatever you use to cover the rack does not touch the paintings themselves, as this could cause unwanted marks or fluff to appear on your artwork.

Additionally, consider the placement of your drying rack. If you're short on floor space, you can tilt the rack at a 30-degree angle and fasten it to the wall to prevent it from being front-heavy and swinging down. This method ensures that your paintings only touch at the top and bottom edges, keeping the wet paint undisturbed.

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Varnish paintings

Varnishing a painting is an effective way to protect it from external forces such as moisture, light, and dirt. Varnishes are transparent, protective films that are applied as a final coating to a completely dry painting. They come in gloss, satin, or matte finish, with gloss finishes being the most popular for their ability to protect and maintain the brightest and deepest colours.

Varnishes are traditionally clear, but they can be toned or altered with the addition of pigments and other materials. Toned varnishes are useful for balancing a painting whose appearance has changed with age. Natural varnishes tend to darken and discolour over time, requiring their removal and replacement. Varnishes are made from natural or synthetic resins dissolved in organic solvents that dry when spread thinly on a surface.

If you are using a removable varnish, consider applying an isolation coat before varnishing the painting. This acts as a barrier between the painting and the varnish, protecting it from the chemicals used to remove the varnish. The isolation coat should be left to dry for at least 24 hours before applying the varnish. When varnishing, lay the painting flat and undisturbed to avoid drips.

It is recommended to wait at least a year after the paint has dried before applying a final picture varnish. Exhibition varnish can be used as a temporary varnish to protect touch-dry paintings that need to be displayed before they are fully dry.

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Store paintings flat

Storing your paintings flat is a great way to protect them while they dry outside. Here are some tips to ensure their safety:

Firstly, choose a suitable location to place your paintings. Avoid uneven surfaces like a stove or table, as this may cause the paint to drip or smudge. Instead, opt for a flat, stable area like the floor or a large table with a shelf underneath. If you need to angle the paintings against a wall, ensure the artwork faces the wall to prevent dust accumulation and potential damage.

When storing multiple paintings, separate each piece with a 2- or 4-ply rag or conservation matboard. This protective layer should be cut 2 inches larger than the artwork to provide adequate coverage. These simple steps will help safeguard your paintings from issues like acidic damage, curling, and creasing.

Maintain a stable environment for your paintings by monitoring temperature and humidity levels. Keep the temperature between 65 and 75 degrees Fahrenheit, depending on the season. Aim for a relative humidity level of around 40% to 60%preventing damage from fluctuations. You can use tools like an air conditioner, humidifier, or hygrometer to help regulate these conditions.

Additionally, consider using a mirror box or a flat picture box to store your paintings. These boxes should be slightly larger than your paintings to provide ample space and protection. Secure the paintings inside with packing tape, and don't forget to add a layer of bubble wrap for extra cushioning and insulation.

By following these guidelines, you can effectively protect your paintings while they dry outside, ensuring they remain undamaged and preserving their beauty for years to come.

Frequently asked questions

You can place your paintings inside a dust-proof drying box made from cheap materials like cardboard, wafer board, and economy lumber. Alternatively, you can use a vertical drying rack and place a sheet over it.

Avoid hanging your paintings near windows or areas with direct sunlight exposure. You can also use curtains, shades, or shutters to block sunlight. For framed paintings, consider using UV-filtering acrylic plexiglass instead of regular glass.

Keep your paintings in a cool, dry, and dark place. You can monitor the humidity level in your home using a hygrometer and aim to maintain a humidity level of around 55%.

Avoid hanging your paintings near ventilation systems, such as air vents, radiators, and air conditioning units, as these can cause uneven temperature and humidity conditions. When storing multiple paintings, place a 2- or 4-ply rag or conservation matboard between each painting to protect them from acidic damage and potential creasing.

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