Will this kill and prevent mold from growing on the backside of unfinished drywall and bare unsealed wood?

It doesn't kill the mold, it keeps it from spreading outwardly by encapsulating the spores. Remember mold sends "roots" out into the material. To prevent/kill mold get rid of the moister source and adequately dry the material its on.

How exactly do you use this product? Do you need to cover furniture or other things? How long does it take to dry? How often should you use?

Follow the directions on the label. The basic way is to spray it directly on top of the surface of the mold. It is not sprayed in the air so furniture and other things don't need to be covered. The dry time, if the humidity is normal (low), should be about 5 minutes, max10 minutes as the mold doesn't need to be saturated, just covered. Once all the mold has been covered/sprayed you won't have to use it again, unless the mold has spread to other areas. If this is the case run a dehumidifier to dry out and remove the moisture from material it's growing on and then you can spray the new mold growth.

It says use for fabric. Is this good for painted dry wall too?

Yes, but remember the mold is most likely started on the backside. See my other reply's for additional information. If you just want to hide the stain/mold use a alcohol or shellac based primer then paint. Use in well ventilated area. See other reply's. If you start smelling a musty smell you'll have to dry out the wall cavities and wood framing by removing the bottom 8" or so of the drywall and use a fan to circulate the air in the wall then you can use this product again. Remember you don't want a "sick" unhealthy house.

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Concrobium Mold Control Aerosol, 14.1 oz – Eliminates & Prevents Mold – EPA Registered, Bleach-Free, Odorless, VOC-Free – For Indoor & Outdoor Surfaces, Mid-Sized Jobs, and Hard-to-Reach Areas

Product ID: 204451621

Details

Brand
Concrobium
Item Form
Aerosol
Material Feature
Spray
Scent
Unscented
Specific Uses For Product
Inside;

🍃Bleach & VOC-free formula

🌫️Precision aerosol fogging

🛡️EPA-registered mold defense

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Description

🛡️ Mold’s worst nightmare, your home’s best defense!

EPA REGISTERED SAFETY - Trusted, government-approved formula for effective mold control.
VERSATILE SURFACE USE - Works seamlessly on drywall, wood, tile, grout, concrete, fabric, and more.
INVISIBLE MOLD BARRIER - Crushes mold spores and leaves a protective shield to stop regrowth.
PRECISION FOGGING REACH - Fine mist aerosol targets hard-to-reach corners and hidden mold hotspots.
ODORLESS CHEMICAL FREE - No bleach, ammonia, or VOCs—safe for indoor air quality and sensitive spaces.

Concrobium Mold Control Aerosol is a 14.1 oz EPA-registered, bleach-free, and odorless solution that eliminates existing mold and prevents future growth by forming an invisible antimicrobial barrier. Its precision aerosol fogging design reaches tight and hidden areas, making it ideal for mid-sized indoor and outdoor mold control jobs on a wide variety of surfaces.

Specifications

ASIN	B084CNRHHF
ASIN	B084CNRHHF
Best Sellers Rank	#1,021 in Health & Household ( See Top 100 in Health & Household ) #3 in Household Mold & Mildew Removers
Brand Name	Concrobium
Cleaning Agent Formulation	Hard Surface Cleaner
Customer Reviews	4.2 4.2 out of 5 stars (2,477)
Date First Available	January 30, 2020
Department	Unisex-Adult
Global Trade Identification Number	00897946000825
Included Components	Mold Control Aerosol
Item Form	Aerosol
Item Type Name	Mold Control
Item Volume	414.03 ml
Item Weight	16 ounces
Item model number	27400CAL
Manufacturer	Rust-Oleum
Manufacturer	Rust-Oleum
Material Features	Spray
Material Type Free	Odorless
Model Number	27400CAL
Number of Items	1
Part Number	27400CAL
Product Dimensions	2.5 x 2.5 x 9.7 inches; 1 pounds
Scent	Unscented
Size	14.1 Fl Oz (Pack of 1)
Special Features	Antibacterial
Specific Uses For Product	Inside; Amateur, Inside; Professional
Surface Recommendation	Fabric
UPC	897946000825
Unit Count	14.1 Fluid Ounces
Warranty Description	Warranty

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€ 37.61

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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