SIKA
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Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac
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Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac
Sikaflex-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength.
Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac
Item #: 86108871

Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac

90% of respondents would recommend this to a friend

Item #: 86108871

USD 39

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*All items will import from US

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Sikaflex-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength.
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What Stands Out

Versatile Application
Sikaflex 221 is ideal for bonding and sealing in various materials, making it perfect for construction, automotive, and marine applications.
Durable Performance
This 1-component polyurethane sealant offers excellent adhesion and resilience to weather elements, ensuring long-lasting protection for your projects.
User-Friendly Formula
Easy to apply and smooth, it requires no mixing, making it convenient for both DIY enthusiasts and professionals alike.

Product Details

Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac
Brand NameSIKA
UPC033886005081
Number of Packs1
Unit Count20.29 Fluid Ounces
Number of Items1
Included Componentsunipac
ManufacturerSika
ModelSIKA-90890
Part Number90890
Water Resistance LevelWater Resistant
Item FormPaste
Compatible MaterialCeramic, Metal, Plastic, Wood
Style NameBlack
ColorBlack
Material TypePolyurethane
MaterialPolyurethane
BrandSIKA
StyleBlack
Country of OriginThis item will be imported from US
Item Weight1.3 lbs (590 grams)
Date First AvailableDecember 29, 2023

Who Should Buy?

Suitable For
  • Construction Professionals

    Ideal for contractors requiring a durable, flexible sealant for construction and repair projects in various conditions.

  • Automotive Enthusiasts

    Perfect for car restorations or repairs, providing weatherproof seals for automotive components and assembly.

  • Home DIY Projects

    Great for homeowners looking to seal gaps or joints around windows, doors, and other household fixtures effectively.

Not Suitable For
  • High-Temperature Applications

    Not suitable for areas experiencing extreme heat, which can compromise the sealant's integrity and performance.

Product Description

Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is Sikaflex 221 used for?

    Answer: Sikaflex 221 is a versatile sealant primarily utilized for sealing joints, gaps, and cracks in various building materials. Its strong adhesion properties make it ideal for construction and automotive applications. This 1-component polyurethane sealant is particularly effective for bonding surfaces such as metal, wood, concrete, and glass. For instance, it can be used for sealing around windows, door frames, or roofing applications, ensuring durability and resistance to outdoor elements.
  • Question: How do you apply Sikaflex 221 sealant?

    Answer: Applying Sikaflex 221 involves a few straightforward steps. First, ensure that the surfaces are clean and dry. Then, cut the nozzle at a 45-degree angle and load it into a caulking gun. Apply the sealant evenly into the joint or seam, ensuring complete coverage. For optimal results, smooth the sealant with a tool or your finger within 10 minutes of application. This method helps create a neat finish, suitable for both visible and hidden applications, enhancing aesthetics and protection against moisture.
  • Question: Is Sikaflex 221 paintable?

    Answer: Yes, Sikaflex 221 can be painted over after it has cured, which generally takes about 24 hours. However, it's crucial to use a compatible latex or oil-based paint to ensure proper adhesion and desired finish. This feature is particularly beneficial for projects where aesthetics are important, such as when sealing around windows or trim in a painted environment. Ensure you test a small area first to avoid any unexpected reactions between the sealant and paint.
  • Question: What is the curing time for Sikaflex 221?

    Answer: The curing time for Sikaflex 221 typically takes about 24 hours, depending on conditions such as temperature and humidity. The sealant starts to skin over quickly, usually within an hour, allowing for immediate handling, but full structural bond strength is achieved after 24 hours. This aspect makes it suitable for projects that require a balance of quick application and long-term reliability, like sealing outdoor structures exposed to the elements.
  • Question: Can Sikaflex 221 be used for automotive applications?

    Answer: Absolutely, Sikaflex 221 is approved for automotive applications due to its exceptional adhesion and flexibility. It can effectively bond and seal components, providing a lasting hold amidst vibration and temperature fluctuations. This makes it ideal for sealing windshields or attaching trim pieces in vehicles. Its versatility ensures that it can withstand the unique stresses associated with automotive environments.
  • Question: Is Sikaflex 221 resistant to weather conditions?

    Answer: Yes, Sikaflex 221 is designed to withstand various weather conditions, including temperature fluctuations, UV exposure, and moisture. This makes it suitable for both interior and exterior applications. The sealant remains flexible over time, allowing for movement in structural joints without cracking or pulling away. For example, you can use it around windows or doors in areas subject to rain or high temperatures, ensuring long-lasting seals.
  • Question: What are the storage recommendations for Sikaflex 221?

    Answer: To ensure the longevity of Sikaflex 221, it should be stored in a cool, dry place, and above freezing temperatures. Unopened cartridges can last several months if kept away from direct sunlight and moisture. This storage practice is crucial for maintaining the sealant's performance characteristics, making it ready for use when needed, whether for urgent repairs or larger projects requiring multiple applications.
  • Question: Is Sikaflex 221 safe for indoor use?

    Answer: Yes, Sikaflex 221 is safe for indoor use once it has fully cured. It emits minimal odor during application and is generally considered non-toxic in its cured state. This property makes it suitable for indoor environments such as kitchens, bathrooms, and living areas, where air quality is vital. For example, you could use it to seal bathtubs or sinks without worrying about harmful fumes affecting your household.
  • Question: Can Sikaflex 221 be used in food-related applications?

    Answer: Sikaflex 221 is not recommended for direct food contact. However, it can be used in surrounding areas that don't come into direct contact with food, such as sealing gaps in kitchen countertops or bonding non-food-contact surfaces. For situations requiring direct food safety compliance, alternative products specifically designed for food-related applications should be considered for assurance.
  • Question: Where can I buy Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac?

    Answer: You can purchase Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac from Ubuy in El Salvador. Ubuy offers a user-friendly shopping experience, making it convenient to find this sealant along with other home improvement products you may need. Feel free to explore their platform for various options and quick acquisition of Sikaflex 221.

SIKA Polyurethane Adhesives Editorial Review

Sikaflex 221 1-Component Polyurethane Sealant Black 600ml Unipac is a versatile and highly effective sealant manufactured by Sika. This polyurethane sealant comes in a convenient paste form and is specially designed to adhere to various materials such as ceramic, metal, plastic, and wood. With its water-resistant properties, it ensures durability even in challenging weather conditions. Customers appreciate its ease of application and strong bonding capabilities, making it ideal for a range of projects. This sealant is available in a sleek black color, providing a clean finish for your sealing needs.

Customer Reviews & Ratings

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Pros

  • Strong adhesion to multiple materials
  • Water-resistant for lasting durability
  • Easy to apply with unipac format
  • Convenient size for various projects
  • Black color offers a polished look

Cons

  • No specific application tool included.

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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.
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USD 39

Order now and get it around Thursday, October 08

QTY:

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Fastest cross-border delivery

Features & Benefits

  • High-quality multi-purpose 1-c polyurethane sealant.
  • Cures on exposure to atmospheric humidity for durability.
  • Non-sag formula provides effortless application.
  • Bonds effectively to wood, metals, ceramics, and plastics.
  • Low odor and non-corrosive, ensuring user safety.
  • Resistant to aging, maintaining performance over time.

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