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DECO 20 Clear Penetrating Concrete Sealer

DECO 20 Clear Penetrating Concrete Sealer


• Approved by the International Code Council  Easy to apply, eliminates scheduling problems
No grade-line problems as associated with tars  Only one application required
 DRIES CLEAR, non-yellowing, no odor  Non-Toxic – Non-Caustic – Non-Flammable
 Dries in 2 to 4 hours, no backfill interruptions  Excellent for interior applications
 Can be applied to dry or damp walls  Can be painted or coated
 Unaffected by ultraviolet rays  Air or airless sprayer applied

Product Description


DECO 20 Clear Penetrating Concrete Sealer (DECO 20) is an alternative material replacing bituminous products. It is approved for dampproofing of masonry block, pre-cast and poured concrete foundation walls. DECO 20 clear sealer is a special formulated penetrating sealer designed for the environmental requirements in the dampproofing industry. DECO 20 clear sealer produces a highly effective breathable moisture barrier, by reducing water vapor transmission.


New & Existing Construction: Dampproofs and seals masonry block, pre-cast and poured concrete walls. DECO 20 clear sealer can be used on the interior of existing concrete and masonry block foundation walls.

Completely water-based  No Color Fade  UV Resistant

View ICC Report


Deco 20 Clear is a reliable and proven waterproofing material that has been independently tested and approved by the International Code Council (ICC). It has been used in the industry for over 25 years and has a track record of success.

Technical Info


Deco 20 Seal meets or exceeds the following ASTM tests:
► ASTM C 1306, Hydrostatic pressure over cracks
► ASTM C 836, Section 6.7 Low-temperature flexibility and crack bridging
► ASTM C 836, Section 6.10 Adhesion strength
► ASTM D 2939, Section 15 Resistance to water
► ASTM C 836, Section 6.9 Remain in place during application (film thickness)
► ASTM E 96, Water vapor permeance (transmission)
► ASTM C 836, Section 6.12 Extensibility after heat aging
► Additional Testing Outside the Scope of AC 29
► ASTM E 154, Section 13 Resistance to decay
► ASTM D 2565-1999, Color fastness of surface coating
► ASTM D 3273-94, Resistance to mold growth of surface coating

Deco 20 Seal is warranted as specified from date of C.O. (Certificate of Occupancy).


Deco 20 Seal Technical Data Sheet

Deco 20 Seal ICC Report

Deco 20 Seal Applicators Guide

Purchase DECO 20 Clear Penetrating Concrete Sealer | Deco Products, Inc.

Deco products manufactures all of their products out of Denver, CO but has suppliers and warehouses set up throughout the USA and Puerto Rico. To find the nearest place to purchase please call our home office at Toll Free 1-800-500-DECO (3326) or contact us today.

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Based on 24 reviews
Timothy King
Timothy King
January 6, 2024.
Best sealers in the industry. Breck is a great guy that provides exceptional customer service. You can call anytime and he’ll always pick up the phone to answer any questions!
Stuart S
Stuart S
October 18, 2023.
I wanted to take the time to truly thank the people at Deco Products for helping me. I explained my situation and I was very grateful and happy to have been treated with respect and kindness with a quick and efficient solution in a timely manner. Many thanks Gentlemen, I greatly appreciate your help.
Reece Sleater
Reece Sleater
October 4, 2023.
Deco Products should be your go to sealer. Their sealers are easy to apply and produce great results. Aside from their sealers it is impossible to beat their customer service. If you need help on a job they are there to walk you through it in person. Breck is the man, he came out to the job site and walked me through the process.
Glenstone Power Wash
Glenstone Power Wash
August 11, 2023.
Great class
Skills Pressure washing LLC
Skills Pressure washing LLC
August 11, 2023.
Good product, good service 👍👍
Jeff Mansfield
Jeff Mansfield
April 5, 2023.
Deco products are amazing, the job turns out perfect every time! My product rep. Breck Tatum is a great guy and is alway available to offer his help and advise. Jeff M
March 10, 2023.
Awesome job as usual.Breck….. Very informative.