---
product_id: 541966809
title: "377940 Stain Killing Primer, Quart"
brand: "zinsser"
price: "£36.88"
currency: GBP
in_stock: true
reviews_count: 8
category: "Zinsser"
url: https://www.desertcart.co.uk/products/541966809-377940-stain-killing-primer-quart
store_origin: GB
region: United Kingdom
---

# Stops stains bleeding into paint Solvent-free, soap & water cleanup Fast 2-hour topcoat readiness 377940 Stain Killing Primer, Quart

**Brand:** zinsser
**Price:** £36.88
**Availability:** ✅ In Stock

## Summary

> 🚀 Seal stains fast, paint with confidence!

## Quick Answers

- **What is this?** 377940 Stain Killing Primer, Quart by zinsser
- **How much does it cost?** £36.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/541966809-377940-stain-killing-primer-quart)

## 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

- • **Quick turnaround:** Ready for topcoat in just 2 hours—speed up your project
- • **Breathe easy indoors:** Ultra low odor & low VOC formula ideal for homes & hospitals
- • **Eco-friendly cleanup:** Water-based primer cleans up effortlessly with soap and water—no harsh chemicals
- • **Seal stains like a pro:** Locks out water, fire, nicotine & grease stains for a flawless finish
- • **Versatile surface hero:** Perfect for cabinets, furniture, wood, interior & exterior use

## Overview

Zinsser 377940 Stain Killing Primer is a water-based, solvent-free primer designed to block tough stains from water, fire, nicotine, grease, and wood tannins. With ultra low odor and low VOC, it’s safe for sensitive environments like homes and hospitals. It dries quickly, allowing topcoat application in just 2 hours, and cleans up easily with soap and water. Ideal for both interior and exterior surfaces, it delivers professional-grade stain blocking and a smooth base for your paint.

## Description

Zinsser Stain Killing Primer kills existing stains from water, fire, nicotine, grease and wood bleed on interior and exterior surfaces. The water-based, solvent free formula offers Stain Locking Technology to stop stains from bleeding into the topcoat and allows for easy soap and water clean up. With ultra low odor and low VOC, Zinsser Stain Killing Primer is the perfect solution for residential homes, hospitals and other application areas where odor is a concern.

Review: Easy cleanup. Seems okay. I still may use Zinsser BIN instead or in addition. - I was trying to block a stain on some wood and thought I would try this. As with. many other primers, it doesn't completely hide a stain in one coat, but presumably it provides some level of sealing, and you can apply more coats or just start painting. The water-based clean-up is very convenient. I still wonder whether, for certain stains, especially those involving pine resin, Zinsser B-I-N might be preferable. Clean-up with that is harder, as you need denatured alcohol handy, and B-I-N tends to ruin brushes if you don't thoroughly soak them fast enough. Still, I've had very good results in the past with B-I-N. I like the easy clean-up of this product. I like the track record of B-I-N. For now, I am using both, with the B-I-N reserved for pine tar problems.
Review: Zinzeer SB primer - Seems to be working to cover tannins bleed through on knots in pine.

## Features

- Stain killing primer stops stains from bleeding into topcoat paint
- Solvent free formula is great for homes, hospitals and more with easy soap and water clean up
- Ultra low odor and low VOC primer for stains works on cabinets and furniture to lock in tannin bleed
- Kills existing stains from water, fire, nicotine, grease and wood bleed
- Ready to topcoat in 2 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3FHZ2J5 |
| Age Range Description | Adult |
| Best Sellers Rank | #175,173 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #128 in Primer Paint |
| Brand Name | Zinsser |
| Color | White |
| Color Code | White |
| Container Type | Can |
| Coverage | Up to 100 square feet per quart |
| Customer Reviews | 4.2 4.2 out of 5 stars (37) |
| Finish Type | Flat |
| Full Cure Time | 2 Hours |
| Included Components | Stain Killing Primer |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Is Waterproof | False |
| Item Form | Liquid |
| Item Volume | 1 Quarts |
| Manufacturer | Rust-Oleum |
| Model Name | Stain Killing Primer |
| Model Number | 377940 |
| Paint Type | Water-based |
| Part Number | 377940 |
| Size | 32 Fl Oz (Pack of 1) |
| Special Features | Fast-Drying, Stain Resistant, Tintable |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Wood |
| UPC | 020066013318 |
| Unit Count | 32.0 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Zinsser
- **Color:** White
- **Finish Type:** Flat
- **Item Volume:** 1 Quarts
- **Paint Type:** Water-based
- **Size:** 32 Fl Oz (Pack of 1)
- **Special Feature:** Fast-Drying, Stain Resistant, Tintable
- **Specific Uses For Product:** Interior/Exterior
- **Surface Recommendation:** Wood
- **Unit Count:** 32.0 Fluid Ounces

## Images

![377940 Stain Killing Primer, Quart - Image 1](https://m.media-amazon.com/images/I/813X65qmW0L.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy cleanup. Seems okay. I still may use Zinsser BIN instead or in addition.
*by H***H on August 5, 2024*

I was trying to block a stain on some wood and thought I would try this. As with. many other primers, it doesn't completely hide a stain in one coat, but presumably it provides some level of sealing, and you can apply more coats or just start painting. The water-based clean-up is very convenient. I still wonder whether, for certain stains, especially those involving pine resin, Zinsser B-I-N might be preferable. Clean-up with that is harder, as you need denatured alcohol handy, and B-I-N tends to ruin brushes if you don't thoroughly soak them fast enough. Still, I've had very good results in the past with B-I-N. I like the easy clean-up of this product. I like the track record of B-I-N. For now, I am using both, with the B-I-N reserved for pine tar problems.

### ⭐⭐⭐⭐⭐ Zinzeer SB primer
*by D***H on May 20, 2024*

Seems to be working to cover tannins bleed through on knots in pine.

### ⭐⭐ Needs 2 coats
*by T***L on May 12, 2025*

I still had bleed-through but it was mahogany. Better after second coat but I like a stronger primer that blocks stains for efficiently

## Frequently Bought Together

- Zinsser 377940 Stain Killing Primer, Quart
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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-25*