will this remove water stains?

It worked very well on the small mold discoloration. I'd try it for water stains because of the completed coverage on the darker mold stains. Seems as opaque as would be needed....

Need to wait 2 days before applying second coat to undersink area. Is that a problem?

I do not know for sure; I used the stuff in an un-ventilated cupboard and applied 2 coats as 1/day. I do not recall anything thing that conditioned application other than to be sure that the previous coat was dry. Clearly there is some chemical reaction going on, but once dry one may imagine that the process is complete? Good luck.

Did this get rid of mold? For how long? Did the mold come back later?

Yes it did get rid of the mold. There are a couple of spots where the mold is returning but they seem to be areas that did not get as much paint but even those areas took about 6 months to return. I highly recommend this item in fact I am planning to order more for another room. T

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Zinsser Rust Oleum 287512 Molding Blocking Spray Primer, 13 oz, White

Product ID: 601708247

Details

Brand
Zinsser
Colour
White
Finish type
Matte
Item volume
13 Fluid
Size
13.00 Ounce of

🎯Covers 8-10 sq. ft. per 13 oz

⏱️Dries to touch in 5 minutes

🛡️EPA-registered antimicrobial shield

209.56 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Description

🛠️ Spray, Shield, and Shine: The Pro’s Secret to Mold-Free Mastery!

FAST DRY FORMULA - Touch dry in just 5 minutes and ready for recoating within 30 minutes—perfect for tight project timelines.
EFFORTLESS CLEANUP - Water-based, low-odor spray that cleans up easily with soap and water—no harsh chemicals required.
FUNGICIDAL PROTECTION - Provides a durable fungicidal barrier that prevents fungal stains and supports long-lasting paint performance.
MOLD MILDEW BLOCKER - EPA-registered primer that halts mold, mildew, and odor-causing bacteria at the source—no heavy pre-cleaning needed.
UNIVERSAL SURFACE ADHESION - Bonds seamlessly to metal, masonry, chalky siding, and more—ideal under any topcoat, especially Zinsser Perma-White.

Zinsser Rust Oleum 287512 Molding Blocking Spray Primer is a 13 oz water-based, EPA-registered antimicrobial primer designed to block mold, mildew, and odor-causing bacteria. It dries quickly in 5 minutes, covers 8-10 sq. ft., and bonds effectively to multiple surfaces including metal and masonry. Low odor and easy cleanup make it ideal for professional and DIY indoor projects, especially when paired with Zinsser Perma-White topcoat.

Specifications

ASIN	B08TT9XWP5
Age Range Description	Adult
Best Sellers Rank	#8,519 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Primer Paint
Brand	Zinsser
Brand Name	Zinsser
Color	White
Color Code	#FFFFFF
Colour	White
Container Type	Aerosol Can
Coverage	8-10 sq. ft./13 oz
Customer Reviews	4.6 out of 5 stars 901 Reviews
Finish Type	Matte
Finish type	Matte
Full Cure Time	5 Minutes
Included Components	Spray
Is Waterproof	False
Item Form	Liquid
Item Type Name	Zinsser Mold Killing Primer
Item Volume	13 Fluid Ounces
Item Weight	454 g
Item volume	13 Fluid Ounces
Manufacturer	Rust-Oleum
Model Name	Zinsser Molding Killing Primer
Model Number	287512
Paint Type	Water-based
Part Number	287512
Size	13.00 Ounce (Pack of 1)
Special Features	water based
Special features	water based
Specific Uses For Product	Interior
Surface Recommendation	Metal
UPC	020066295189
Unit Count	13 Ounce
Warranty Description	Warranty
Water Resistance Level	Water Resistant

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.