The sealer will protect your cedar for several years. The exact amount will depend on the brand you use. But, you still want to sweep and wash your cedar area at least once a year to keep it from graying. Cedar is a beautiful red wood, but can turn gray if not properly cared for.
When fully weathered, cedar takes on a light silvery-gray appearance. If you like the weather-beaten look of a seaside cottage or an old barn, cedar can develop that look all on its own. But one aspect of cedar's weathering process that doesn't appeal to some homeowners is that it turns gray unevenly.
To prevent cedar from fading to gray, you need to seal cedar fence with a stain that blocks ultraviolet light and contains a mildewcide, according to Family Handyman.
The best clear Cedar finish stain for outdoors is Linseed oil, hands down. Linseed oil is the primary ingredient in any oil finishes, which dries clear. You can find other clear water-based stains, but will not last nearly as long as a Linseed oil based stain will.
Sometimes its as early as 2 months, and other times it takes a year for the grey to set in. This is why stain is so necessary for your cedar wood. It keeps out the water, so those cells can keep doing their thing. But remember: Once your fence is installed, it can't be treated right away.
Cedar offers a durable option for exterior and interior building projects with natural resistance to rot and decay, so a protective finish is optional. If you want to enjoy the aroma of varieties such as Western Red Cedar and incense cedar, leave the wood unsealed.
However, cedar that is destined to live outdoors needs some special care and attention. Specifically, it needs to be treated with a good wood stain. Otherwise, your nice cedar color will fade to a dull, nasty grey.
Boiled linseed oil, despite not providing much water-resistance to wood when applied in the usual way associated with furniture, will do much to slow the weathering to that natural grey/silver colour if applied heavily and re-applied periodically.
Here's how to age wood and make it look old and gray. Iron vinegar on fresh cedar lumber: Soak some steel wool in white vinegar for a few hours or a few days - the longer it steeps, the darker the aged effect will be.
Caution. Transparent, non-flexible, film-forming finishes such as lacquer, shellac, urethane, and varnish are not recommended for exterior use on cedar. Ultraviolet radiation can penetrate the transparent film and degrade the wood.
Best Overall: READY SEAL Exterior Stain and Sealer for Wood
This best stain for cedar can shield and protect your wood surface from harmful UV light. The product is effective for all your rooftops, fences, and stained cedar decks that have gone grey and will restore their beauty and color.
The best way to restore your cedar siding or cedar fence to its original glory is with soft washing. Instead of the robust streams of high-pressure water used in pressure washing, soft washing uses a low-pressure technique with a special mixture of highly effective and biodegradable cleaning solutions.
Cleaning. If your siding's fresh color lays buried under a gray, weathered surface and mold, buy a bleach-based cleaning solution or mix 3/4-cup of bleach with 1-gallon of water to restore or salvage the cedar's luster.
If left in its natural state, some darkening of the wood can be expected as it ages and the color variation will become less pronounced. Application of transparent finishes will also darken western red cedar to some degree but they form a protective surface that is easier to maintain.
Although cedar is naturally resistant to rot and decay, staining your siding promptly will help in the preventing of deterioration.
How long does the Cedar cladding take to weather? The natural reddish brown colour of Western Red Cedar won't stay that way for long if left untreated and can weather to a silver-grey colour within 6-12 months depending on the conditions.
The most common culprits are tannins, mildew, and mold. Tannins ordinarily leach from cedar wood, and do not normally cause any problems. However, when tannins mix with metal and iron, a chemical reaction occurs and a black stain can form. Cedar, along with any other wood, is a natural habitat for mildew and mold.
Wood rot occurs when water once again hits these dead cells. The combination of water and UV exposure causes the cedar to lose it's scent and colour, turning it into a dull grey. The wood rot on the cedar creates an ideal breeding ground for mold and mildew, which is both unattractive and detrimental.
A water-based polyurethane finish will work great for sealing wood without altering the color. An acrylic lacquer is also a good option. All in all, it's mostly a matter of personal preferences. But whichever of these products you choose, you want to look for a white-water one.
Tung oil works perfectly on Cedar wood.
it works as a protective layer while giving a dark rich look to the Cedar wood furniture and woodworks.
The answer is, Yes, linseed oil is one the most recommended finishes for cedar woods. For a reason that it thrives on humid weather and reduces the sunlight damage. Ideally suited for patio furniture as they need extra care from weather, so it is an ideal solution.
Cedar wood, like other fine woods, can and should be coated with polyurethane for protection. Polyurethane will keep dirt, dust, and oil from getting onto the cedar which would dull and damage the color. If the cedar you want to protect is not new it will need to be scrubbed with hot soapy water and a cloth.
Cedar should be stained as soon as it will accept the stain. This is easy to determine with penetrating semi-transparent stains. Apply the stain, if it soaks in its ready. If it pools on the surface, do it later.
Rot, premature aging, and warping can occur from the weather and elements when the boards aren't sealed. Finishing off your newly-installed cedar deck with a sealant or wood stain will help to prolong the life, beauty, and appeal of the deck for years to come.
If you leave cedar wood untreated, it will not succumb to the devastating effects of mold, rot and insect damage. However, it will lose its typically golden-brown color.