DRYLOK® Liquid Etch

DRYLOK® Liquid Etch

A modern formulation, DRYLOK® Liquid Etch is highly effective in etching masonry, stone, tile, and brick. It removes unsightly efflorescence (salt deposits) as well as excess mortar. Use DRYLOK® Liquid Etch, as a safer alternative to muriatic acid, to treat smooth concrete and condition galvanized surfaces prior to painting.

DRYLOK® Liquid Etch Application

Quick Overview

DRYLOK® Liquid Etch is easier to use than those stronger acids typically employed to cut into unprotected parts of metal surfaces, smooth and highly troweled concrete, brick, and ceramic tile. Plus, there are no harmful fumes!

Product Features:

  • Self-neutralizing
  • Ready to use – no mixing required
  • Clean and etch concrete, stone, tile, galvanized metal, and brick
  • Interior/exterior
  • Size: gallon
  • Coverage: 300-600 square feet per gallon



  • Concrete
  • Walkways
  • Patios
  • Garage floors
  • Basements
  • Driveways
  • Carports
  • Concrete tennis courts
  • Brick
  • Stucco
  • Concrete walls
  • Galvanized metal
  • Ceramic tile

How To / Videos

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Wear eye protection with side shields, chemical-resistant gloves, protective footwear and suitable clothing when using DRYLOK® Liquid Etch. Remove dirt, dust, grease, and oil by washing with a detergent solution or DRYLOK® Concrete Cleaner & Degreaser*. Allow the surface to dry before applying DRYLOK® Liquid Etch.


Apply when air and surface temperature is above 50°F. Surfaces to be treated should be slightly damp. For vertical surfaces, apply DRYLOK® Liquid Etch with an acid-resistant sprayer or a synthetic brush. For horizontal surfaces, apply DRYLOK® Liquid Etch using a plastic garden watering can with a sprinkling head or an acid-resistant sprayer. DO NOT pour onto one spot and brush out over surface. Using a stiff bristle brush or broom, scrub DRYLOK® Liquid Etch into surface until foaming action stops. If the Liquid Etch does not foam, the concrete has been sealed. The sealer must be removed using a suitable chemical remover or surface abrader. Triple-rinse the surface with a strong stream of water, scrubbing while rinsing to ensure removal of all etching material. When dry, check the surface by applying a few drops of water. Water should penetrate quickly. If not, re-apply DRYLOK® Liquid Etch to the affected area as described previously. Allow the surface to dry thoroughly before applying paint or stain. A properly etched horizontal surface should look and feel like 120-grit medium sandpaper. Additional applications may be required when used as a concrete etching compound or when conditions of excessive efflorescence build-up exist.

USAGE STATEMENT: Prior to use, carefully read the product label and follow the directions. For technical information, warnings, cautions, notices, and additional information, download and read the documentation available on this website.

* WARNING: If you scrape, sand or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or visit www.epa.gov/lead.