Does your beautiful cedar deck or siding look dull and gray? Cedar wood is naturally strong and smells amazing, but the weather quickly fades its rich color. Sun, rain, and time are tough on this lovely wood. Many homeowners feel lost when trying to pick the perfect sealer. Should you choose oil, water-based, or something else? Finding the right product means protecting your investment and keeping that gorgeous reddish-brown tone alive.
Choosing the wrong sealer can lead to peeling, cracking, or wood that still turns gray too fast. It’s frustrating to spend time and money on a product that doesn’t deliver! This guide cuts through the confusion. We will break down the best sealers specifically for cedar wood. You will learn exactly what features matter most for durability and appearance.
Keep reading to discover the secrets to long-lasting cedar protection. By the end, you will confidently choose the sealer that makes your cedar look fantastic for years to come. Let’s dive into protecting your wood!
Top Sealer For Cedar Wood Recommendations
- NO LAPS, RUNS OR STREAKS: Goof Proof formula with no back brushing required; ideal for exterior wood projects
- OUTSTANDING DURABILITY: No cracking, chipping, flaking or peeling with excellent moisture resistance and UV protection; great for outdoor decks, fences, wood siding and more
- CAN WITHSTAND RAIN WITHIN MINUTES OF APPLICATION: Can also be applied in direct sunlight
- HIGH AND LOW TEMPERATURE APPLICATION: Requires no wet-line application, the product will blend itself and can be applied in any temperature range for proper application
- EASY TO APPLY AND MAINTAIN: Low odor formula may be applied using sprayer, roller or brush onto the wood's surface; no sanding or stripping required for reapplication
- GARDEN BED WOOD SEALER - For Use On Cedar And All Wood Types Used In Raised Bed Gardens. Deep Penetrating, Natural Oils, Bond With Wood Fibers To Protect Wood For A Decade Or More
- NON-TOXIC - FDA Food Contact Safe. Plant Based With No Toxic Chemicals That Can Leach Into Your Garden's Soil And A Natural Citrus Scent. WARNING: Never use sealers made of acrylics, polymers, silane/siloxane/silicone for vegetable gardens. They are derived from petroleum and toxic. If the label says the product contains any of those ingredients return it and purchase a 100% plant based option.
- PLANT SAFE - No Toxic Chemicals To Harm Your Plants, Vegetables Or You. Ingredients You Can Understand (Listed In Product Description Section). ALSO GREAT FOR PET PROJECTS. Seal Your Chicken Coup Or Dog House
- PROFESSIONAL STRENGTH - Covers Up To 200 SF. Used By Professional Growers That Are Required To Have Their Soils Tested For Harmful Chemicals
- MULTI-PURPOSE - Safe For Sealing and Protecting Bird Houses, Bird Feeders, Dog Houses, Chicken Coops. Safe For Animals And Pets
- NO LAPS, RUNS OR STREAKS: Goof Proof formula with no back brushing required; ideal for exterior wood projects
- OUTSTANDING DURABILITY: No cracking, chipping, flaking or peeling with excellent moisture resistance and UV protection; great for outdoor decks, fences, wood siding and more
- CAN WITHSTAND RAIN WITHIN MINUTES OF APPLICATION: Can also be applied in direct sunlight
- HIGH AND LOW TEMPERATURE APPLICATION: Requires no wet-line application, the product will blend itself and can be applied in any temperature range for proper application
- EASY TO APPLY AND MAINTAIN: Low odor formula may be applied using sprayer, roller or brush onto the wood's surface; no sanding or stripping required for reapplication
- SUPERIOR BLEND OF LINSEED OIL & BEESWAX: Tried and True wood finish is a superior blend of linseed oil and beeswax. This time-tested combination of oil and wax provides a warm soft appearance and adds protection against water, liquids and daily use.
- EFFICIENT CURING: This linseed oil for wood is polymerized for fast curing without the use of toxic drying aids found in boiled linseed products. No solvents means a little bit goes a long way. Safe to apply indoors with no PPE.
- LONG-LASTING DURABILITY: Tried & True’s original oil finish provides long-lasting durability and the ability to touch-up or repair the finish without needing to strip or sand the wood. This makes a potential heirloom to pass down for generations.
- SAFE & NON-TOXIC: This wood finish is ideal for many projects including food contact applications like cutting boards, knife handles, butcher block and wood cabinetry. It is also safe as a wooden toy finish and pet items.
- EASY APPLICATION: Sand the piece up to at least 320, wipe it on, buff it dry, wait a day, burnish with 4/0 steel or synthetic wool, repeat as desired. See videos and product label for in-depth application instructions.
- WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Transparent Waterproofing Wood Stain. Along with adding smooth color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
- TRANSPARENT WOOD STAIN – This outdoor wood stain provides a transparent finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding boldly tinted color.
- FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
- EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
- EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
- WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain. Along with adding lightly tinted color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
- SEMI-TRANSPARENT WOOD STAIN – This outdoor wood stain provides a semi-transparent finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding lightly tinted color.
- FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
- EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
- EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
- Ready mix, ready to use semi-transparent wood stain and sealant all-in-one
- Waterproofing deck and fence protection
- Provides a resistant stain coating & seal
- SUNBLOCK UV defense
- Exclusive SCUFF GUARD Technology
- MARINE SEALANT: Our liquid formula creates a UV-stable coating for protection against the elements, saltwater spray, and water damage. Marine is a great protector for outdoor furniture, thermally modified wood, and boat docks. Marine is safe for use over open water and is non-hazardous to aquatic life.
- DECK STAIN: It's water-based, ultra-low VOC, great for enhancing the extended life of your flooring, siding, and porch. The paint forms a water-resistant shield around wood fibers at the cellular level to help preserve the natural color.
- WATERPROOF WOOD SEALER: The wood used on boat docks, decks, and retaining walls near rivers, lakes, oceans, and ponds is subjected to constant moisture. We crafted a sealer, remove stain, and finish all in one, specifically for these installations.
- WOOD SEALANT: Our fast-drying protector penetrates wood below the surface, coating the wood fibers at the cellular level, which creates a long-lasting, flexible, breathable barrier. It provides a no-fuss, easy clean-up with soap and water.
- SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage. When you use Seal-Once, you have the satisfaction of knowing our products will not harm pets, plants, or people.
Choosing the Best Sealer for Your Cedar Wood
Cedar wood is beautiful. It smells great too. But cedar needs protection outside. A good sealer keeps it looking new for longer. This guide helps you pick the right one.
Key Features to Look For
When shopping for a cedar sealer, look for these important things:
- **UV Protection:** Sunlight fades cedar fast. Good sealers block harmful UV rays. This keeps the natural color longer.
- **Water Repellency:** The sealer must push water away. Water causes rot and mildew. Look for terms like “water-resistant” or “water-repellent.”
- **Mildew and Mold Resistance:** Damp wood invites fuzzy growth. The sealer should have ingredients that fight mold and mildew.
- **Penetration:** A great sealer soaks *into* the wood, not just sitting on top. Deep penetration offers better, longer-lasting protection.
- **Maintenance Needs:** How often must you reapply? Some sealers last one year; others last three or more. Choose based on how much work you want to do.
Important Materials in Sealers
Sealers come in different chemical bases. The material affects how the sealer looks and performs.
Oil-Based Sealers
Oil-based sealers soak deep into the cedar. They often give a rich, warm look. They usually offer excellent water resistance. However, they take longer to dry. Cleanup requires mineral spirits or paint thinner.
Water-Based Sealers (Acrylic/Latex)
Water-based sealers are easier to use. They clean up with just soap and water. They dry faster than oil. They are often clearer but might need more frequent reapplication.
Hybrid or Penetrating Oils
Some modern products blend the best parts of both. They penetrate well but clean up easier. These are often popular choices for DIYers.
Factors That Improve or Reduce Quality
What makes a sealer great or just okay?
Quality Boosters:
- **High Solids Content:** This means more protective material is in the can. More solids equal better, thicker protection.
- **Natural Oils (like Tung or Linseed):** If the sealer contains natural oils, it often nourishes the cedar fibers, keeping them flexible.
- **Clear vs. Tinted:** Clear sealers let the cedar grain show. Tinted sealers (like light amber or semi-transparent stains) offer superior UV blockage because the pigment absorbs the sun’s rays.
Quality Reducers:
- **Low VOCs (Volatile Organic Compounds) Alone:** While low VOCs are good for the air, sometimes very low-VOC formulas do not penetrate as deeply, reducing long-term protection.
- **Cheap Acrylics:** Very inexpensive, thin water-based sealers often just sit on the surface. They peel quickly when exposed to weather.
- **No UV Inhibitors:** If the label does not mention UV protection, the sealer will fail quickly in the sun.
User Experience and Use Cases
Think about where you are using the cedar. This affects your choice.
Decking and Fences (High Traffic/Exposure)
Decks take constant abuse from feet and rain. You need a tough, penetrating sealer. Oil-based or high-quality hybrids work best here. You must clean and reseal decks every 1-2 years.
Siding and Shingles (Vertical Surfaces)
Siding faces the sun and rain vertically. Water runs off quickly. Water-based sealers often work well here because they are easy to spray on. They look natural and allow the wood to breathe.
Furniture and Railings (Detailed Areas)
For detailed railings or outdoor furniture, ease of application matters. Water-based formulas are often preferred because they brush on smoothly without leaving thick drips.
Always test the sealer on a small, hidden spot first. Check the drying time listed on the can. Proper preparation—cleaning and sanding the old wood—is as important as the sealer itself!
10 Frequently Asked Questions (FAQ) About Cedar Sealers
Q: Do I need to seal cedar if it is naturally rot-resistant?
A: Yes. Cedar resists rot well, but it does not resist UV rays or water spotting. Sealing protects the color and prevents the wood from drying out and cracking.
Q: How long does a good cedar sealer last?
A: This varies greatly. A high-quality oil sealer might last 2 to 3 years on a deck. A water-based sealer on siding might last 3 to 4 years before needing a touch-up.
Q: Can I apply sealer when it is cold outside?
A: No. Most sealers require the temperature to be above 50°F (10°C) for proper curing. Check the label for the minimum application temperature.
Q: What is the difference between a sealer and a stain?
A: A sealer’s main job is protection from water and sun. A stain’s main job is adding color. Many products are “sealer-stains” which do both jobs.
Q: Should I use a clear sealer or one with color?
A: Colored sealers (tints) always offer better UV protection because the pigment blocks the sun better than clear additives.
Q: How do I clean up oil-based sealer spills?
A: You must use mineral spirits or paint thinner for cleanup. Do not pour these down the drain.
Q: Is it better to use a brush, roller, or sprayer?
A: For decks, a brush or pad applicator helps push the sealer deep into the grain. For siding, a sprayer saves time, followed by a light back-brushing.
Q: What happens if I skip cleaning before sealing?
A: If you seal over dirt, mildew, or old loose finish, the new sealer will trap those problems underneath. The new coat will fail and peel much faster.
Q: Can I seal wet cedar wood?
A: Never apply sealer to soaking wet wood. The wood needs to dry out thoroughly first, usually for several sunny days, or the sealer traps moisture inside.
Q: Will sealer change the natural look of my cedar?
A: Clear sealers usually darken the wood slightly and bring out the grain. If you want zero change, look for a “non-yellowing” or “water-clear” water-based product.