Heavy-duty, waterproofing system used under tile, stone, or brick.

Dual-Flex is a heavy-duty, elastomeric waterproofing system used under tile, brick, stone, or pavers. Installed in multiple waterproofing layers, Dual-Flex forms a tightly-adhering membrane across floors and up curbs to create a durable, seamless barrier.

The system is engineered to provide maximum waterproofing protection over occupied spaces such as condos, apartment complexes, high-rise buildings, multi-use facilities, promenade decks, balconies, and other pedestrian areas.


  • Provides positive waterproofing with dual waterproofing protection
  • Reduces reflective cracking caused by substrate movement
  • Forms a monolithic, tightly-adhering, molded membrane across floors and up bases and curbs
  • Maintains elastomeric properties at low temperatures
  • Can be applied over new or existing surfaces
  • Environmentally safe, contains virtually no organic solvents and is VOC compliant
  • Installed only by professional, factory-trained Dex-O-Tex contractors

Technical Info

  • Bond Strength ASTM C482 (modified)
    Dry – 77 psi
    Wet – 62 psi
  • Tensile Strength Ceramic Tile Inst. SE S763
    Dry – 46 psi
    Wet – 50 psi
  • Breaking Strength ASTM D751 – 265 psi
  • Elongation Fabric Reinforced ASTM D751 – 50.5%
  • Hydrostatic Pressure Resistance ASTM D751
    (Method A, Procedure 1) – 240 psi
  • Ozone Resistant ASTM D1149
    (72 hrs @ 100 ppm No cracking, 90°F plus Hydrostatic crazing or waterFHA 4900.1) penetration
  • Dimensional Stability ASTM D1204 – <0.5%
  • Indention Resistance FMA 4900.1 Sect. 615-5 – No water (shower pan) penetration
  • Puncture Resistance FMA 4900.1 Sect. 615-5 – No water (shower pan) penetration
    System Performance ASTM C627
    (Modified to Comply With Ceramic Tile Institute moderate Commercial) – No water penetration
  • Microbial Resistance ASTM G21 – Passes Rating 1

Related Projects

See how Dex-O-Tex contractors use this product in the field.

clean commercial kitchen in a restaurant

Food & Beverage: Maintaining Your Commercial Kitchen

Maintaining a hygienic commercial kitchen is one of the biggest challenges of running a busy restaurant. As a business owner, manager or chef, it is […]

Maintaining a hygienic commercial kitchen is one of the biggest challenges of running a busy restaurant. As a business owner, manager or chef, it is important to have a system in place as well as an outline of how to keep your kitchen in top shape. When you implement a system for your staff to follow, you educate them of good practices that prevent common hazards such as slips and fires. It is important to conduct regular inspections to ensure that your kitchen is safe for your employees and customers. This way, you prevent unexpected breakdowns that can affect your kitchen’s productivity.

Schedule professional maintenance

To keep your kitchen running smoothly, conduct regular preventive maintenance. Make sure your equipment is consistently performing to save you time and money on repairs. Replace broken and worn out parts to keep them functioning for many years. Should repairs be required, you can call in a professional to troubleshoot for you.

Professionals will provide your business with all the reliable repairs and replacements required for your team to prepare a great meal for your customers. They will also assess your staff’s activities, provide safety regulations, identify immediate and potential hazards, respond to unsafe situations and look for ways to improve your current system.

Ensure sanitation

Cleanliness is the key to a successful restaurant or hotel. With regular cleaning, you ensure that the food coming out is safe for your customers to eat. There are some cleaning jobs that can be accomplished monthly, while there are others that must be done regularly.

Food preparation takes place in the kitchen, so you can expect your countertops and hard surfaces to be a breeding ground for bacteria. These should be wiped clean a couple of times a day to ensure that the food you will serve is safe for consumption. Appliances and equipment such as ovens, toasters, fryers, grills and coffee makers should be deep cleaned weekly so they stay in excellent condition. Your ceiling, floor and walls should also be wiped daily to remove grease and food particles. Wash out your exhaust vents and hoods every few months to remove grease and grime. Finally, do an extensive cleaning of your racks, shelves and cabinets every six months.

Inspect your flooring

wide shot of a commercial kitchen

Every day, your kitchen flooring is exposed to heavy industrial cooking equipment, extreme temperatures and spills. With overall constant use, your surface will require annual floor preservation. To maintain your flooring, ensure a slip-resistant surface that won’t surrender to the daily application of harsh cleaning agents. Waterproof epoxy floor coating will help protect your concrete floor against liquid damage, saving you expensive routine maintenance costs. This resinous finish provides a hardwearing, tough and scratch-resistant surface that performs well in areas, like walk-in freezers, which are subject to water immersion.

Dex-O-Tex offers a full line of floor, wall and waterproofing systems for commercial, industrial and residential spaces in the US. We provide our solutions to schools, laboratories, athletic facilities, restaurants, hospitals and many other environments. If you want to know more about the products and services we offer, visit our website at dex-o-tex.com.

Find the Right Solutions for Your Project Today

Let Dex-O-Tex share over 80 years of expertise in advanced flooring, coating, waterproofing, and more. Complete your construction project proficiently with the use of superior solutions.