Can this product be used safely on composite decking? Specifically Wolf decking.

I have only used it on wood, stone, and brick.

Anybody have luck on composite/Trex decking? Any warnings/tips? Thank you.

I use the cleaner on my white siding, wood deck and even concrete. The cleaner continues to work over time, I never even power wash here is Florida! I love the stuff. (Some you put on dry and hose off, the other kind just put on surface.)

How will this affect my shrubbery which is right next to the house?

Yes. It is important to do your best to avoid over spray and to rinse your plants well as soon as possible if any contact does occur. If you need something that is safe to use round your lawn and landscaping, then we recommend you use 30 SECONDS Outdoor Cleaner.

Is this safe to use on a wood deck that has been stained and sealed?

I would say since the cleaner seems to work over a period of six months on on my plastic siding. NO I would not seal it under wood. Rather sand and stain your deck would suffice. If your not sealing it, use it every 6 months and remember it takes time to work.

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30 SECONDS Mold and Mildew Stain Remover Concentrate | Spray & Walk Away Outdoor Cleaner | 1 Gallon

30 SECONDS Mold and Mildew Stain Remover Concentrate | Spray & Walk Away Outdoor Cleaner | 1 Gallon

Product ID: 16950444

Details

Active Ingredients
chloride
Brand
30 SECONDS
Item Form
Spray
Item Weight
8 Pounds
Liquid Volume
128 Fluid

🌿Kills moss, lichen & algae effectively

⏱️30-second spray & walk application

🛡️Safe, bleach & phosphate-free formula

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R1940

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Spray Fast, Walk Away, and Watch Nature Do the Dirty Work!

ECO FRIENDLY SAFE - Bleach-free, phosphate-free, and safe around pets and gardens when used as directed.
SPRAY WALK SIMPLICITY - Spend 30 seconds spraying, then relax—no scrubbing or rinsing needed.
SLIP RESISTANT SAFETY BOOST - Keeps pathways and driveways free of slippery organic buildup for safer outdoor spaces.
POWERFUL ORGANIC GROWTH KILLER - Eradicates moss, mold, algae, and lichen on large or hard-to-reach outdoor surfaces.
VERSATILE SURFACE COMPATIBILITY - Works seamlessly on roofs, driveways, brickwork, decks, and more without damage.

30 SECONDS Mold and Mildew Stain Remover Concentrate is a powerful, eco-friendly outdoor cleaner that kills moss, mold, algae, and lichen on a variety of surfaces. Its easy spray-and-walk formula requires no rinsing or scrubbing, saving time and effort while improving safety by reducing slippery organic growth. Safe for pets and plants, this bleach- and phosphate-free concentrate covers up to 600 sq. ft., making it ideal for large outdoor areas.

Specifications

ASIN	B006P1N2AI
Active Ingredients	chloride
Best Sellers Rank	#73,784 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #29 in Moss Control
Brand Name	30 SECONDS
Coverage	200-600 sq. ft. depending on porosity of surface
Customer Reviews	4.1 4.1 out of 5 stars (1,902)
Global Trade Identification Number	00040235753845
Included Components	1 Gallon 30 SECONDS Spray & Walk Away
Item Form	Spray
Item Type Name	30 SECONDS Spray & Walk Away, 1 Gallon - Concentrate
Item Weight	8 Pounds
Liquid Volume	128 Fluid Ounces
Manufacturer	30 SECONDS Cleaners
Model Number	1GSAWA
Part Number	1GSAWA
UPC	040235753845
Unit Count	128.0 Fluid Ounces

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R1940

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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