Mapei
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Mapei Keracaulk U Unsanded Caulk (Black) - 10.5-oz
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Mapei Keracaulk U Unsanded Caulk (Black) - 10.5-oz
Premium-grade, easy-to-use, and easy-to-clean siliconized acrylic caulk formulated to match Mapei unsanded grouts.
Mapei Keracaulk U Unsanded Caulk (Black) - 10.5-oz
Item #: 75915591

Mapei Keracaulk U Unsanded Caulk (Black) - 10.5-oz

88% of respondents would recommend this to a friend

Item #: 75915591

XOF 21042

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Premium-grade, easy-to-use, and easy-to-clean siliconized acrylic caulk formulated to match Mapei unsanded grouts.
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What Stands Out

Smooth Finish
Keracaulk U provides a superior smooth finish, perfect for interior and exterior applications while ensuring a neat appearance in any caulking job.
Mold Resistant
This caulk is designed to resist mold and mildew, making it ideal for wet areas like bathrooms and kitchens, ensuring long-lasting protection.
Easy Application
With its user-friendly tube design, Mapei Keracaulk U allows for precise application, making it accessible for both DIY enthusiasts and professionals alike.

Product Details

Shop the best price for Mapei Keracaulk U Unsanded Caulk Black - 10.5-oz at Ubuy Togo. Get the perfect finish for your project.
Brand NameMapei
Number of Items1
ManufacturerMAPEI
UPC093994610676
Unit Count10.5 Fluid Ounces
Model91010
Part Number91010
Surface RecommendationTile
Maximum Gap Fill0.25 inches (0.6 cm)
Water Resistance LevelWaterproof
ColorBlack
Item FormLiquid
Item Weight10.5 ounces (297.68 grams)
Liquid Volume10.5 fluid ounces
Material TypeSiliconized Acrylic
BrandMapei

Who Should Buy?

Suitable For
  • Tile Installers

    Perfect for tile projects, providing a clean finish and flexibility to accommodate grout movement without cracking.

  • Homeowners

    Ideal for DIY repairs around the house, ensuring a professional-looking seal in bathrooms and kitchens.

  • Contractors

    Excellent choice for professionals needing reliable caulking for durable and long-lasting sealing in various applications.

Not Suitable For
  • Outdoor Use

    Not suitable for outdoor applications as unsanded caulk can break down under direct sunlight and weather conditions.

Product Description

Mapei Keracaulk U Unsanded Caulk (Black) - 10.5-oz

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Customer Questions & Answers

  • Question: What is Mapei Keracaulk U Unsanded Caulk used for?

    Answer: Mapei Keracaulk U Unsanded Caulk is primarily designed for sealing joints and gaps in various surfaces, including ceramic tiles, glass, and natural stone. Its unsanded formula makes it ideal for filling smaller joints, ensuring a smooth finish without graininess. This caulk is perfect for projects in kitchens and bathrooms, where precise sealing is essential to prevent water damage and mold growth.
  • Question: Is Mapei Keracaulk U Unsanded Caulk suitable for outdoor use?

    Answer: Yes, Mapei Keracaulk U Unsanded Caulk can be used for outdoor applications, provided it is appropriately applied and allowed to cure properly. The caulk's formulation offers resistance to moisture which makes it a good choice for areas exposed to the elements, such as outdoor tile installations or around exterior fixtures. It's important to ensure that the surface is clean and properly prepared for the best results.
  • Question: How do I apply Mapei Keracaulk U Unsanded Caulk?

    Answer: To apply Mapei Keracaulk U Unsanded Caulk, first ensure the surface is clean and dry. Cut the tip of the applicator at a 45-degree angle and puncture the inner seal. Use a caulking gun to apply the caulk evenly into the joint or gap. Smooth the surface with a caulking tool or your finger for a clean finish. This caulk can be utilized for both vertical and horizontal surfaces, making it versatile for any sealing task.
  • Question: What is the curing time for Mapei Keracaulk U Unsanded Caulk?

    Answer: The curing time for Mapei Keracaulk U Unsanded Caulk can vary based on environmental conditions such as humidity and temperature. Generally, it starts to set in a few hours, but full curing may take several days. During this time, avoid exposing the caulk to water or stress. This comprehensive curing ensures robust adhesion and sealing, making it ideal for critical areas like bathrooms and kitchens.
  • Question: Can Mapei Keracaulk U Unsanded Caulk be painted over?

    Answer: Yes, Mapei Keracaulk U Unsanded Caulk can be painted over once it has fully cured. To achieve the best finish, allow the caulk to dry completely before applying paint. This feature is beneficial for projects requiring a uniform appearance, such as finishing a tiled wall with painted accents. Use a compatible paint for the best adhesion and durability.
  • Question: Is Mapei Keracaulk U Unsanded Caulk mold resistant?

    Answer: Yes, Mapei Keracaulk U Unsanded Caulk is formulated to resist mold and mildew growth, making it an excellent option for moist areas like bathrooms and kitchens. This resistance ensures that the caulk maintains its integrity over time, providing lasting protection against unsightly and damaging mold. It’s particularly useful in areas prone to moisture and humidity, ensuring a cleaner, healthier environment.
  • Question: What surfaces can I use Mapei Keracaulk U Unsanded Caulk on?

    Answer: Mapei Keracaulk U Unsanded Caulk is suitable for use on a wide range of surfaces, including ceramic and porcelain tiles, glass, marble, and natural stone. This versatility makes it an ideal choice for various projects, from bathroom renovations to kitchen backsplashes. Ensure the surfaces are clean, dry, and free of any contaminants for optimal adhesion and performance.
  • Question: What are the benefits of using unsanded caulk like Mapei Keracaulk U?

    Answer: Unsanded caulk, such as Mapei Keracaulk U, offers several benefits, including a smoother finish and easier application for smaller joints. It does not contain sand, which often causes graininess and uneven surfaces. This makes it ideal for delicate and precise applications, such as filling gaps between tiles without affecting their appearance. Use it when a clean, polished look is desired.
  • Question: How do I clean up after using Mapei Keracaulk U Unsanded Caulk?

    Answer: To clean up after using Mapei Keracaulk U Unsanded Caulk, wipe away any excess caulk using a damp cloth or sponge while it is still wet. If the caulk has dried, use a utility knife for careful removal, taking care not to damage surrounding surfaces. Proper cleanup ensures a neat work area and prevents unwanted caulk residue that could affect the finish of your project.
  • Question: Where can I buy Mapei Keracaulk U Unsanded Caulk Black - 10.5-oz?

    Answer: You can buy Mapei Keracaulk U Unsanded Caulk Black - 10.5-oz from Ubuy. Ubuy offers a convenient platform for purchasing this product, ensuring that you have access to the caulk for your tiling and sealing projects. Their services often include a variety of options, making it easy to select the right products for your needs.

Mapei Adhesive Caulk Editorial Review

The Mapei Keracaulk U Unsanded Caulk in black has garnered mixed feedback from users, painting a picture of both potential and pitfalls. While it is recommended for use in situations where traditional grout isn't suitable, customers have reported significant issues regarding its performance and curing properties. A prevalent concern among users is the lengthy 7-day curing period before it can withstand water exposure, a timeframe many find frustrating. Despite adhering to the application guidelines, several customers expressed disappointment as the caulk failed to set properly, leading to wash-out even after the stated curing time. This has resulted in some users having to remove and reapply the caulk altogether, which is not only inconvenient but also additional cost and labor. Users have noted that while the color matches their expectations and the product serves a specific purpose, its Consistency is problematic. Many described the caulk as overly runny and challenging to apply, diminishing the overall user experience. Moreover, issues surrounding long-term durability were highlighted, with reports of shrinkage and cracking after just a year of use. In conclusion, while Mapei Keracaulk U Unsanded Caulk may fulfill a niche need, its application difficulty and lack of reliability in terms of curing and durability overshadow its positives, leading many to reConsider its overall value for bathroom projects. **

Customer Reviews & Ratings

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Pros

  • Suitable for areas where traditional grout fails
  • Good color matching

Cons

  • Requires a lengthy 7-day curing time

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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

XOF 21042

Order now and get it around Wednesday, October 07

QTY:

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Our Top Logistics Partners
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Fastest cross-border delivery

Features & Benefits

  • Premium-grade caulk designed for a perfect color match with Mapei unsanded grouts.
  • User-friendly and easy to apply for indoor projects.
  • Cleans up easily with water while still fresh.
  • Ideal for filling gaps up to 1/4 inch.
  • Paint-friendly formulation allows for seamless integration with painted surfaces.
  • Color reference provided may differ from actual color.

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