---
product_id: 601708247
title: "Zinsser Rust Oleum 287512 Molding Blocking Spray Primer, 13 oz, White"
brand: "zinsser"
price: "$U2749"
currency: UYU
in_stock: true
reviews_count: 5
category: "Zinsser"
url: https://www.desertcart.uy/products/601708247-zinsser-rust-oleum-287512-molding-blocking-spray-primer-13-oz
store_origin: UY
region: Uruguay
---

# Covers 8-10 sq. ft. per 13 oz Dries to touch in 5 minutes EPA registered antimicrobial defense Zinsser Rust Oleum 287512 Molding Blocking Spray Primer, 13 oz, White

**Brand:** zinsser
**Price:** $U2749
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal out mold, speed up projects, and stay ahead of decay!

## Quick Answers

- **What is this?** Zinsser Rust Oleum 287512 Molding Blocking Spray Primer, 13 oz, White by zinsser
- **How much does it cost?** $U2749 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/601708247-zinsser-rust-oleum-287512-molding-blocking-spray-primer-13-oz)

## Best For

- zinsser enthusiasts

## Why This Product

- Trusted zinsser brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Dry Formula:** Touch dry in just 5 minutes and ready for recoating within 30 minutes—perfect for busy pros and weekend warriors alike.
- • **Fungal Stain Coverage:** Effectively conceals stubborn fungal stains while providing a fungicidal protective barrier for lasting results.
- • **Mold & Mildew Blocker:** EPA-registered primer that halts mold, mildew, and odor-causing bacteria at the source—no heavy pre-cleaning needed.
- • **Water-Based & Low Odor:** Eco-friendly, easy soap-and-water cleanup with minimal fumes—keep your workspace fresh and safe.
- • **Versatile Surface Bonding:** Bonds seamlessly to chalky siding, masonry, metal, and more—ideal under any topcoat, especially Zinsser Perma-White.

## Overview

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. per can, and bonds to multiple surfaces including metal and masonry. Low odor and easy cleanup make it ideal for indoor use under any topcoat, especially Zinsser Perma-White, providing a durable, fungicidal protective coating.

## Description

Zinsser Mold Killing Primer is a water-based fungicidal protective coating that can be used to paint over existing mold, mildew, moss, fungi, odor causing bacteria and any other fungal organisms. The mold killing primer contains an epa registered antimicrobial to prevent the growth of mold, mildew and other fungal organisms on the paint film. Use indoors or out on a variety surfaces including under wall Coverings. Mold killing primer also aides in covering residual microbiological and fungal stains.

Review: Great product
Review: Used on a 30 x 24" space under my sink.

## Features

- EPA registered primer blocks existing mold, mildew, and odor causing bacteria without extensive pre-cleaning
- Low odor, water-based coating cleans up easily with soap and water
- Covers between 8-10 sq. ft., dries to the touch in 5 minutes and recoats within 30 minutes for quick project completion
- Water based fungicidal protective coating works under any coating and aides in covering fungal stains
- Great for use under any topcoat; ideal with ZINSSER Perma-White. Binds chalky siding, masonry, and metal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08TT9XWP5 |
| Age Range Description | Adult |
| Best Sellers Rank | #15,752 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 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 808 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 | 1 Pounds |
| Item height | 7.88 inches |
| Item volume | 13 Fluid Ounces |
| Manufacturer | Rust-Oleum |
| Model Name | Zinsser Molding Killing Primer |
| Paint Type | Water-based |
| 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 |

## Product Details

- **Brand:** Zinsser
- **Colour:** White
- **Finish type:** Matte
- **Item volume:** 13 Fluid Ounces
- **Size:** 13.00 Ounce (Pack of 1)

## Images

![Zinsser Rust Oleum 287512 Molding Blocking Spray Primer, 13 oz, White - Image 1](https://m.media-amazon.com/images/I/71YykgNnwVL.jpg)

## Questions & Answers

**Q: will this remove water stains?**
A: 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....

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

**Q: Did this get rid of mold? For how long? Did the mold come back later?**
A: 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

**Q: Why does this say recommended for metal,non porous surfaces but shows wood walls as the objects used on,painted with?**
A: I used in on a concrete floor

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by T***E on 13 January 2026*



### ⭐⭐⭐ Used on a 30 x 24" space under my sink.
*by S***N on 6 November 2025*



### ⭐⭐⭐⭐ Decent
*by S***H on 22 June 2025*



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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-24*