SEAL-ONCE Multi-Surface Cleaner Concentrate, 1 lb (16oz) - Outdoor Use Easy Surface Preparation and Cleaner
SEAL-ONCE Multi-Surface Cleaner Concentrate, 1 lb (16oz) - Outdoor Use Easy Surface Preparation and Cleaner
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SEAL-ONCE Multi-Surface Cleaner Concentrate, 1 lb (16oz) - Outdoor Use Easy Surface Preparation and Cleaner

Key item features

  • Highly versatile concentrate deep cleans a wide variety of outdoor surfaces, including wood, concrete, pavers, brick, tile, stucco, siding, shingles, log homes, and outdoor furniture.
  • Penetrates below the surface to remove stubborn dirt, grime, rust stains, mill glaze, and more for optimal surface preparation.
  • Biodegradable, and ultra-low VOC formula is safe for use around people, pets, and plants.
  • Perfect for prepping surfaces before applying SEAL-ONCE waterproofers, sealers, or stains, ensuring maximum performance and adhesion.
  • Easy to mix and apply: just dissolve concentrate in water, let rest, then apply by garden sprayer or mop—scrub or pressure wash for best results.
  • Eliminates odors and leaves surfaces ready for finishing, all with simple soap-and-water cleanup for convenience.
Current price is $24.98
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Arrives by Fri, Jun 19
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Sold by U-C Coatings
Fulfilled by Walmart
4.647058823529412 stars out of 5, based on 34 seller reviews(4.6)
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4.2 out of 5 stars
stars32 ratings31 reviews
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Showing 1-3 of 31 reviews

May 1, 2026
KatieM
5 out of 5 stars review

Easy to use and packs a powerful punch!

[This review was collected as part of a promotion.] This product was really easy to use and packs a powerful punch! The directions were easy to follow and provided the perfect dilution ratio for my project. I used a mop to easily apply it and a deck brush to roughen up the dirt which resulted in a clean new looking deck! I really like how easy it is to use this product!

Review from influenster.com
Helpful?5B2BV6NFM37710501059521
May 9, 2026
HonestM
5 out of 5 stars review

Does a great job cleaning hard surfaces

[This review was collected as part of a promotion.] I received this “Seal Once Multi-Surface Cleaner Concentrate” free in exchange for my honest opinion. This cleaner has no volatile odors or scary ingredients to worry about with using; it uses a single ingredient that I like because it's safe to use. It works very well for pretty much any hard surfaces, not just wood and concrete (as the name implies). As you can see in the pictures, it cleans amazingly well. I used it to clean some really dirty, moldy, algae-covered surfaces. I mixed it, applied it (according to the instructions), then scrubbed in sections with a stiff brush. What a difference it made when I rinsed! The terracotta dish and my outdoor patio furniture came out so clean. This concentrated formula makes up to four gallons (mixed with water) and cleans up to 1,200 square feet (if you're cleaning a concrete surface). It also did a great job on my dirty concrete pool deck. I will be using this again and again as it proved to clean better than all those unhealthy products with noxious chemicals. I'd recommend this to everyone for hard surfaces!

Review from influenster.com
Helpful?5B2BV6NFM37710501059521
May 5, 2026
TristaM
5 out of 5 stars review

Great multi surface cleaner!

[This review was collected as part of a promotion.] I used this product on my front porch and only used a scrub brush to clean the concrete surface. It made a significant difference so I can only imagine that using a power washer as suggested by the manufacturer would make a huge impact. I was quite impressed and will use it on the rest of my porch when my husband can help me with the power washer. It was easy to mix, easy to use!

Review from influenster.com
Helpful?5B2BV6NFM37710501059521