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MAPEI Mapelastic WaterStop, Liquid-Rubber Waterproofing & Crack-Isolation Membrane, use Under Tile or Stone, Prevents in-Plane Floor Cracks (up to 1/8 [3 mm]). 1 Gallon (3.79l) jug
Mapelastic WaterStop is a flexible, fast-drying, waterproofing and crack-isolation membrane for installation under tile or stone.
MAPEI Mapelastic WaterStop, Liquid-Rubber Waterproofing & Crack-Isolation Membrane, use Under Tile or Stone, Prevents in-Plane Floor Cracks (up to 1/8" [3 mm]). 1 Gallon (3.79l) jug
Item #: 19067904

MAPEI Mapelastic WaterStop, Liquid-Rubber Waterproofing & Crack-Isolation Membrane, use Under Tile or Stone, Prevents in-Plane Floor Cracks (up to

Item #: 19067904

€ 72

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Mapelastic WaterStop is a flexible, fast-drying, waterproofing and crack-isolation membrane for installation under tile or stone.
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What Stands Out

Superior Waterproofing
Mapelastic WaterStop offers excellent waterproofing protection, effectively sealing surfaces against moisture penetration, making it ideal for both indoor and outdoor applications.
Flexible and Durable
Designed to maintain performance over time, this product adapts to structural movements, ensuring long-lasting durability without compromising its waterproofing capabilities.
Easy Application
With a user-friendly formula, Mapei Mapelastic WaterStop simplifies the application process for contractors and DIY enthusiasts alike, saving time while delivering professional-grade results.

Product Details

Get the Mapei Mapelastic WaterStop, a fast-drying, flexible liquid-rubber waterproofing membrane for tile or stone installation. Protect floors from water damage. Shop now at Ubuy Portugal!
  • Fast-drying liquid-rubber waterproofing membrane
  • Allows tile installation after 60 to 90 minutes of drying time
  • Flood-test as a shower-pan liner after 12 hours
  • Easy application with roller or brush; water cleanup
  • Adheres to a wide range of surfaces; versatile and user-friendly
  • No odor, ideal for confined spaces
Brand NameMapei
UPC093994734563
Unit Count128.0 Fluid Ounces
Number of Items1
Part Number7345704
ManufacturerMapei
Water Resistance LevelWaterproof
Item FormLiquid
Compatible MaterialCeramic, Rubber, Stone
Style NameCompact
Surface RecommendationTile
Material TypeRubber
MaterialRubber
BrandMapei
StyleCompact
Item Weight5.5 lbs (2.49 kg)

Who Should Buy?

Suitable For
  • Waterproofing Projects

    Ideal for contractors needing high-performance waterproofing for swimming pools, tunnels, and foundations.

  • Moisture-Prone Areas

    Great for residential and commercial applications in basements or areas exposed to high moisture levels.

  • Flexible Applications

    Designed for users requiring flexible and crack-bridging waterproofing solutions over various substrates.

Not Suitable For
  • Non-Expert Users

    Amateur DIY enthusiasts may struggle with the technical application and required expertise for optimal results.

Product Description

MAPEI Mapelastic WaterStop, Liquid-Rubber Waterproofing & Crack-Isolation Membrane, use Under Tile or Stone, Prevents in-Plane Floor Cracks (up to 1/8" [3 mm]). 1 Gallon (3.79l) jug

About This Item

Introducing the Mapei Mapelastic WaterStop - the ultimate solution for all your waterproofing and crack-isolation needs! Designed to protect your floors and rooms from water damage, this flexible, thin, and fast-drying liquid-rubber membrane is perfect for both residential and commercial environments. With Mapelastic WaterStop, you can bid farewell to worries about leaks and cracks. This one-component membrane creates a continuous barrier that prevents water from seeping through ceramic tile or stone, giving you peace of mind and a long-lasting, moisture-free surface. This waterproofing solution is incredibly versatile and user-friendly. It bonds to a wide range of surfaces, making it suitable for various applications.

Whether you're working on a shower pan, a bathroom, or any other problematic area prone to water damage, Mapelastic WaterStop has got you covered. You can even combine it with MAPEI's optional Reinforcing Fabric or Mapeband accessories for enhanced protection in coves, corners, cracks, and drains. What sets the Mapelastic WaterStop apart is its fast-drying formula. In just 60 to 90 minutes, you can install your desired tile or stone, making your project move along swiftly.

After just 12 hours of drying time, you can even flood-test it as a shower-pan liner. This means less waiting and more enjoying of your newly waterproofed space. Application is a breeze with a roller or brush, and cleanup is as simple as using water. And don't worry about any unpleasant odors - Mapelastic WaterStop is odor-free, making it ideal for confined spaces. If you're in need of a reliable and effective waterproofing solution, look no further than the Mapei Mapelastic WaterStop.

Shop online now and give your space the protection it deserves with Mapei's trusted products.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is Mapei Mapelastic WaterStop used for?

    Answer: Mapei Mapelastic WaterStop is a flexible waterproofing membrane designed for protecting structures against water intrusion. It is commonly used in areas that require high-performance waterproofing, such as balconies, terraces, foundations, and swimming pools. The product’s flexibility allows it to adapt to substrate movements, ensuring durability over time. For instance, when applied in a swimming pool, it effectively prevents any leakage, safeguarding the integrity of the structure and preventing costly repairs.
  • Question: How do you apply Mapei Mapelastic WaterStop?

    Answer: To apply Mapei Mapelastic WaterStop, start by ensuring that the surface is clean, dry, and free from dust or contaminants. Mix the product as per the instructions, then use a trowel or roller to apply it evenly on the surface. It’s crucial to ensure a thickness of at least 1.5 mm for proper waterproofing. Make sure to allow adequate drying time between coats. This product is ideal for projects that require reliable moisture barriers, such as new constructions or renovations.
  • Question: Is Mapei Mapelastic WaterStop suitable for indoor use?

    Answer: Yes, Mapei Mapelastic WaterStop is suitable for indoor use, especially in wet areas like bathrooms and kitchens. Its excellent waterproofing capabilities make it an effective choice for preventing water damage to underlying structures. By applying this waterproofing membrane beneath tiles or in shower areas, you ensure long-lasting protection against mold and deterioration. This makes it a favored option among contractors and homeowners looking to enhance the durability of their spaces.
  • Question: What is the drying time for Mapei Mapelastic WaterStop?

    Answer: The drying time for Mapei Mapelastic WaterStop varies depending on the environmental conditions and the thickness of the application. Typically, it takes about 24 hours for the membrane to dry sufficiently to allow for tile installation. However, it’s recommended to wait at least 72 hours before exposing the area to water. Using it in optimal weather conditions can expedite drying time, ensuring efficient project timelines without compromising quality.
  • Question: Can Mapei Mapelastic WaterStop be painted over?

    Answer: Yes, Mapei Mapelastic WaterStop can be painted over once it has fully cured. Using compatible paint allows for aesthetic enhancement while maintaining the waterproofing benefits. Ensure that the paint is suitable for use on flexible membranes to prevent any adverse reactions. This is particularly beneficial for outdoor applications where color matching is crucial, such as in patios or deck areas, allowing you to maintain design integrity while ensuring protection.
  • Question: What surfaces can Mapei Mapelastic WaterStop be applied to?

    Answer: Mapei Mapelastic WaterStop can be applied to various surfaces including concrete, cement-based screeds, and masonry. It is also compatible with existing tiles, which saves time during renovations. Proper surface preparation is critical—for example, ensure that all substrates are sound and clean. This versatility in application is what makes it an excellent choice for both new construction and refurbishment projects, providing users with a reliable waterproofing solution across various environments.
  • Question: Is Mapei Mapelastic WaterStop environmentally friendly?

    Answer: Mapei Mapelastic WaterStop has been formulated with eco-friendly components, making it a more sustainable choice for waterproofing. Its low VOC (volatile organic compounds) level ensures minimal environmental impact during application. Choosing eco-friendly products like this one reduces harmful emissions and supports health safety for users. As a result, it is ideal for environmentally conscious projects where safety and sustainability are priorities.
  • Question: How long does Mapei Mapelastic WaterStop last?

    Answer: Mapei Mapelastic WaterStop is designed to provide long-lasting waterproofing, often lasting 10 years or more when properly applied and maintained. Its durability is a result of its high elasticity and resistance to movement, which helps withstand structural shifts over time without compromising its waterproofing abilities. This longevity makes it suitable for both residential and commercial projects, allowing property owners to invest in a reliable solution that reduces the need for frequent repairs.
  • Question: Can Mapei Mapelastic WaterStop withstand freeze-thaw cycles?

    Answer: Yes, Mapei Mapelastic WaterStop is engineered to withstand freeze-thaw cycles, making it highly suitable for areas prone to extreme weather conditions. Its ability to remain flexible during temperature fluctuations prevents cracking and damage, ensuring continued effectiveness in waterproofing. Applications in cold climates, such as exterior foundations or basements, benefit significantly from this feature, providing robust protection throughout the year regardless of external conditions.
  • Question: Where can I buy Mapei Mapelastic WaterStop in Portugal?

    Answer: You can buy Mapei Mapelastic WaterStop in Portugal through Ubuy. Ubuy offers a convenient e-commerce platform that features a wide range of Mapei products, ensuring you have access to quality waterproofing solutions right at your fingertips. With reliable shipping and customer service, Ubuy simplifies your purchasing experience, making it easy to get the products you need for your construction and renovation projects.

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