Cedar decking adds a touch of elegance to any outdoor space. But, keeping that wood looking its best requires the right protection. Without a good sealer, you’ll soon see fading, cracking, and warping from the sun and rain. We’ve tested a bunch of sealers to find the ones that really hold up and keep your cedar deck beautiful for years to come. So, let’s get into the top contenders that can protect your investment and maintain that gorgeous cedar glow.
Product Overview / Quick Summary:
- Thompson’s WaterSeal TH.041841-16 Timber Oil: Budget-friendly, easy to apply.
- Ready Seal 512 Exterior Wood Stain and Sealer: Great for DIYers, no back brushing needed.
- SaverSystems Deck Wood Stain: Excellent UV protection, long-lasting color.
- Olympic Stain Maximum Waterproofing Sealant: Superior waterproofing, resists mildew.
- Thompsons WaterSeal Waterproofing Wood Protector: Good water repellency, clear finish.
Top 5 Best Sealers for Cedar Decking
1. Thompson’s WaterSeal TH.041841-16 Timber Oil
Thompson’s WaterSeal Timber Oil is a popular choice for those looking for an affordable and straightforward sealing solution. It’s designed to penetrate the wood to protect from water damage and enhance the natural wood grain. This sealer is oil-based, which helps it soak deeply into the cedar.
Pros:
- ✅ Budget-friendly option for cedar decking.
- ✅ Easy to apply with a brush, roller, or sprayer.
- ✅ Enhances the natural grain and color of the wood.
Cons:
- ❌ May require more frequent reapplication compared to other sealers.
- ❌ Oil-based formula can take longer to dry completely.
- ❌ Some users report a strong odor during application.
Verdict: Ideal for homeowners seeking an economical option that’s easy to apply, but be prepared for potential reapplication down the line.
2. Ready Seal 512 Exterior Wood Stain and Sealer
Ready Seal 512 is a stain and sealer combo known for its ease of use and forgiving application. You don’t have to back-brush it, which makes it a favorite among DIY enthusiasts. It’s oil-based and penetrates the wood to protect it from the inside out.
Pros:
- ✅ No back brushing required, simplifies application.
- ✅ Easy to apply with a sprayer, roller, or brush.
- ✅ Can be applied in any temperature, even direct sunlight.
Cons:
- ❌ Limited color options compared to other brands.
- ❌ Can be more expensive than some other sealers.
- ❌ Oil-based formula might attract more dirt and grime over time.
Verdict: Great for DIYers who want a hassle-free application process and a natural-looking finish.
3. SaverSystems Deck Wood Stain
SaverSystems Deck Wood Stain is designed to provide excellent UV protection and long-lasting color to your cedar deck. It’s a water-based acrylic formula that penetrates the wood, offering protection against fading, cracking, and moisture damage. I used this on my fence last year and the color still looks great.
Pros:
- ✅ Provides excellent UV protection to prevent fading.
- ✅ Water-based formula is easy to clean up with soap and water.
- ✅ Long-lasting color and protection.
Cons:
- ❌ Requires thorough surface preparation for best results.
- ❌ May need multiple coats for optimal coverage.
- ❌ Can be pricier than some other options on the market.
Verdict: A solid choice if you prioritize UV protection and want a water-based stain that’s easy to clean up.
4. Olympic Stain Maximum Waterproofing Sealant
Olympic Stain Maximum Waterproofing Sealant is formulated to provide superior waterproofing and mildew resistance for your cedar deck. This sealant creates a protective barrier that repels water and prevents damage from mold and mildew. It’s a good pick if you live in an area with a lot of rain or humidity.
Pros:
- ✅ Offers maximum waterproofing protection.
- ✅ Resists mildew and algae growth.
- ✅ Available in a variety of colors to match your style.
Cons:
- ❌ May require more frequent reapplication in high-traffic areas.
- ❌ Can be difficult to apply evenly if not properly mixed.
- ❌ Some users report a slightly glossy finish that may not appeal to everyone.
Verdict: Best for those who need maximum waterproofing and mildew resistance, especially in damp climates.
5. Thompsons WaterSeal Waterproofing Wood Protector
Thompsons WaterSeal Waterproofing Wood Protector provides reliable water repellency and a clear finish that allows the natural beauty of the cedar to shine through. This product is designed to penetrate deep into the wood to protect against water damage, cracking, and warping. I’ve used this on smaller projects and it’s very easy to apply.
Pros:
- ✅ Provides good water repellency to protect against water damage.
- ✅ Clear finish enhances the natural look of the wood.
- ✅ Easy to apply with a brush, roller, or sprayer.
Cons:
- ❌ May not provide as much UV protection as some other sealers.
- ❌ Can require more frequent reapplication, especially in harsh weather conditions.
- ❌ Some users report that it can become slippery when wet.
Verdict: A good option for those who want basic water protection and a clear finish that shows off the wood’s natural grain.
Buying Guide
Choosing the right sealer for your cedar decking involves considering several factors. Here’s a breakdown to help you make the best choice:
- Type of Sealer: There are two main types: oil-based and water-based. Oil-based sealers penetrate deeper and often provide better water protection, but they can be more prone to mildew and take longer to dry. Water-based sealers are easier to clean up, dry faster, and are generally more environmentally friendly, but may not offer the same level of water protection.
- UV Protection: Cedar is susceptible to fading from the sun. Look for sealers that offer UV protection to help maintain the wood’s natural color.
- Water Resistance: A good sealer should repel water to prevent warping, cracking, and rot. Consider your local climate and choose a sealer that offers the appropriate level of water resistance.
- Ease of Application: Some sealers are easier to apply than others. If you’re a DIYer, look for products that don’t require back brushing or can be applied in direct sunlight.
- Color and Finish: Sealers come in various colors and finishes, from clear to tinted. Choose a color that complements your home’s exterior and a finish that you find aesthetically pleasing.
- Longevity: Consider how long the sealer is expected to last before needing reapplication. While longer-lasting sealers may cost more upfront, they can save you time and money in the long run.
- Budget: Sealers range in price, so set a budget before you start shopping. Keep in mind that the cheapest option isn’t always the best, as it may not offer the same level of protection or longevity as more expensive products.
FAQs
How often should I seal my cedar deck?
It depends on the sealer you use and the weather conditions in your area, but generally, you should reseal your cedar deck every 1-3 years.
Can I apply sealer to a wet deck?
No, the deck needs to be completely dry before applying sealer. Moisture can prevent the sealer from properly penetrating the wood.
What’s the best way to prepare my deck before sealing?
Clean the deck thoroughly with a deck cleaner to remove dirt, mildew, and old sealant. Allow the deck to dry completely before applying the new sealer.
Oil-based or water-based sealer – which is better for cedar?
Both have their advantages. Oil-based sealers generally offer better water protection, while water-based sealers are easier to clean up and are more environmentally friendly. Choose based on your specific needs and priorities.
Do I need to sand my deck before sealing it?
It’s generally recommended if the deck has an existing finish that’s peeling or flaking. Sanding helps to create a smooth surface for the new sealer to adhere to.
Conclusion
Choosing the right sealer for your cedar decking is crucial for maintaining its beauty and longevity. There are many options available, but by considering factors like UV protection, water resistance, and ease of application, you can find the perfect product to protect your investment. Hopefully, this guide has helped you narrow down the best options for your needs. Happy sealing!
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