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Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal
Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal

Thompson's WaterSeal Flat Clear Multi-Surface Waterproofer 1.2 gal

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Covers up to 468 sq. ft. with a clear, low-VOC finish that protects outdoor wood without hiding its natural look.
Thompson'S Waterseal MPN TH.024111-03 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $19.99. Our online price is $21.99.
$21.99
Free shipping on orders over $249
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 4 · Order in multiples of 4
Ships free on orders over $249 $24.99 flat shipping until your order reaches $249.

Sold by the Case

$87.96 per case of 4

Save $13.20 on orders $75+. Spend $75 or more to unlock 15% off cases plus free shipping — applied automatically at checkout.

Ships as a complete case of 4. Free shipping on orders $75 and up.

About Product Overview

Thompson's WaterSeal Waterproofer goes on clear so it protects outdoor wood and masonry without changing the look of the surface underneath. It's a multi-surface formula, so it works across decks, fences, and other above-ground wood or concrete that takes a beating from rain and moisture year-round.

One 1.2-gallon container covers up to 468 square feet, and the low-VOC formula means less odor while you work. It dries flat with a fully transparent finish, and you can recoat in 45 minutes if a second pass is needed, with a full cure in 24 hours.

  • Container size: 1.2 gallons
  • Coverage: up to 468 sq. ft.
  • Color: clear, flat sheen, paintable
  • Low VOC formula
  • Recoat time: 45 minutes; full cure: 24 hours
  • For outdoor, above-ground use

The Details Specifications

Brand Thompson'S Waterseal
UPC 032053241116
Case Pack Quantity 4 per case
Retail Unit Quantity 4
Dimensions (L × W × H) 14 × 9 × 12
Weight 43 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to open the other tab. Everybody does. We'd rather say so than pretend otherwise — so open it. We'll wait.

When you're over there, check four things 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 Thompson'S Waterseal. 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

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Thompson'S Waterseal

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