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Zinsser HIDZ White Flat Water-Based Primer and Sealer 5 gal

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Blocks stains and recoats in just 1 hour, with soap-and-water cleanup for easy job-site use.
Zinsser MPN 373694 In Stock & Ready to Ship
$119.99
Ships $39.99 flat · large item
Heavy item · ships $39.99 flat Large items cost more to ship. Prefer to skip it? This is one to grab locally — no box, no shipping. Check your local store below ↓

About Product Overview

This 5-gallon pail of Zinsser water-based primer and sealer is built for painters covering large jobs where stain blocking and fast turnaround matter. It goes on with a brush, roller, or airless sprayer, and because it's a low-VOC latex formula, cleanup is just soap and water instead of solvents.

The stain-blocking properties make it a solid choice for water stains, smoke damage, or patched drywall before a finish coat, and it works on multiple surfaces both indoors and out. With recoat time at just one hour, crews can move through prep and topcoat in the same day, though the label calls for a full 7 days to reach complete cure. It's tintable, so it can be adjusted toward the final color to help the topcoat cover in fewer passes.

  • Container size: 5 gallons
  • Coverage area: 400 sq. ft.
  • Base type: water-based latex, flat sheen, white
  • Stain blocking: yes
  • Recoat time: 1 hour / full cure: 7 days
  • Application: brush, roller pad, or airless sprayer

The Details Specifications

Brand Zinsser
Model / MPN 373694
UPC 020066192778
Weight 59 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Zinsser. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Zinsser

Or skip the tabs entirely and buy it down the street. Find a store near you →

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

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