RedGard Waterproofing and Crack Prevention Membrane

Custom Building Products
$93.60 - $149.95
(1 review)
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RedGard Waterproofing & Crack Prevention Membrane

Take a look at our Membrane Underlayment Guide for more information on the different types of underlayments.

RedGard is a ready-to-use, elastomeric, waterproofing and anti-fracture membrane for commercial and residential tile and stone installations. You can easily apply it using a roller, trowel or sprayer. It also meets IAPMO specifications for use as a shower pan liner. Protected by MoldGard Technology to resist mold and mildew growth.



  • Follow all surface preparation instructions on Data Sheets.
  • Pump pressure: 1900psi to 2300psi depending on tip size and length of hose.
  • Tip size: .025 to .029 (425, 427, or 429)
  • Reduction: None
  • It is recommended to stir material just prior to use. To achieve the required film, the coating must be free from pinholes and air bubbles. Air bubbles will cause pinholes.
  • Apply coating in even passes to achieve 45 mils wet.
  • Do not backroll coating.
  • Allow drying for a minimum of 24 hours prior to installation of tile, stone or terrazzo.

As a Crack Prevention Membrane: 1 gallon (3.78 L) pail: 110 sq. ft. (10.2 M2) at 30 mil thickness when wet


As a Waterproof Membrane: 1 gallon (3.78 L) pail: 35 - 40 sq. ft. (3.25 - 3.7 M2) at 93 mil thickness when wet, 47 mils dry

As a Crack Prevention Membrane: 3.5 gallon (13.2L) pail: 385 sq. ft. (35.8m2) at 30 mil thickness when wet

As a Waterproof Membrane: 3.5 gallon (13.2 L) pail: 123 - 140 sq. ft. (11.4 - 13 M2) at 93 mil thickness when wet, 47 mils dry



  • 5
    Love Redguard.

    Posted by TODD ALEXANDER on Dec 30, 2022

    But what I ordered and paid for was a tile leveling kit which cost about 5 times as much but I was charged and invoiced for the leveling kit. For a brief second I thought because of the hassle, hardship and cost of the delay due to the missing items to the clients tile job that I was to start, and couldn't, I didn't just order another kit, but called them and they jumped on correcting the issue, sending a call tag for the Redguard, and shipping out the kit next day no shipping cost and did right by me considering the challenge it created. How a company handles the occasional challenge that happens reveals a lot about the company ethics and customer service. They passed the test and I will order from them again as a result. Good people.