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Nº de artículo:
243750245
Sikaflex 521, White, UV Resistant Low Modulus Sealant, 300ml Cartridge
80% of respondents would recommend this to a friend
Nº de artículo:
243750245
DOP 2343
Price Details
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Sikaflex-521 UV: a durable, UV resistant sealant that bonds well to a variety of substrates without special pre-treatment.
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What Stands Out
UV Resistance
Sikaflex 521 is designed to withstand UV exposure, ensuring long-lasting performance and protection against fading, making it ideal for outdoor applications.
Low Modulus
The low modulus formulation allows for superior elasticity, accommodating building movements without cracking, ensuring durability and reliability in a variety of environmental conditions.
Versatile Applications
Suitable for diverse substrates including wood, metal, and concrete, Sikaflex 521 effectively meets various sealing needs, providing flexibility in usage for both professionals and DIY enthusiasts.
Detalles de producto
| Brand Name | SIKA |
| Number of Packs | 1 |
| Unit Count | 10.1 Fluid Ounces |
| Global Trade Identification Number | 07612894448689 |
| Number of Items | 1 |
| Item Type Name | Great Product |
| Manufacturer | Sika |
| Model | SIKA-106096 |
| Part Number | 106096 |
| Item Weight | 16 ounces (453.6 grams) |
| Item Dimensions | 2 x 2 x 14 inches (5.1 x 5.1 x 35.6 cm) |
| Water Resistance Level | Waterproof |
| Item Form | Liquid |
| Compatible Material | Wood, Metals, Sheet Steels, Metal Primers, Paint Coatings, Ceramic Materials, Plastics and Glass |
| Style Name | Compact |
| Color | White |
| Material Type | Polyurethane |
| Material | Polyurethane |
| Brand | SIKA |
| Style | Compact |
| Item dimensions L x W x H | 2 x 2 x 14 inches (5.1 x 5.1 x 35.6 cm) |
Who Should Buy?
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Marine Applications
Ideal for sealing joints in boats and marine equipment due to its UV resistance and flexibility.
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Construction Projects
Perfect for use in construction for sealing windows, doors, and other joints where waterproofing is essential.
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DIY Enthusiasts
Great for hobbyists and DIYers looking for a reliable sealant for various home improvement projects.
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High-Pressure Environments
Not suitable for applications where high pressure or extreme movement is expected, as flexibility may be insufficient.
DESCRIPCIÓN DEL PRODUCTO
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Preguntas y respuestas de los clientes
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Pregunta:
What is Sikaflex 521 used for?
Respuesta: Sikaflex 521 is a versatile sealant primarily designed for use in construction and automotive applications. It is ideal for sealing joints and gaps in various materials like concrete, metal, and glass. With its UV resistance, it performs exceptionally well in outdoor applications, ensuring durability and longevity. For instance, you can use it to seal around windows or doors to prevent water leakage, or in boat maintenance to provide a watertight seal. -
Pregunta:
Is Sikaflex 521 paintable?
Respuesta: Yes, Sikaflex 521 can be painted once it has fully cured. This makes it an excellent choice for applications where aesthetics matter. It allows for integration with the surrounding surfaces once dried, ensuring a seamless look. Be sure to use a compatible paint type, and it's advisable to test on a small area first to ensure proper adhesion and finish. -
Pregunta:
How does the low modulus feature of Sikaflex 521 benefit my projects?
Respuesta: The low modulus characteristic of Sikaflex 521 allows for high elasticity without excessive stiffness, which is beneficial in joints that experience significant movement. This flexibility means it can accommodate structural changes and vibrations, thereby reducing the risk of cracking or failure over time. It's particularly useful in environments that see temperature fluctuations or shifting foundations. -
Pregunta:
Can Sikaflex 521 be used in underwater applications?
Respuesta: Sikaflex 521 is not specifically designed for permanent underwater applications; however, it can withstand wet conditions effectively once cured. For projects involving aquatic environments, it is recommended to ensure the surface is clean and apply it correctly, considering its limitations. For example, it can be used for sealing boat parts above the waterline or in other ambient moist conditions, making it versatile. -
Pregunta:
What surfaces can Sikaflex 521 adhere to?
Respuesta: Sikaflex 521 adheres well to a variety of surfaces including wood, metal, glass, and concrete. Its strong bonding capabilities make it suitable for diverse applications, from home construction to repairs in automotive and marine settings. For best results, ensure the surfaces are clean and dry before application, maximizing the sealant's effectiveness in creating a strong bond. -
Pregunta:
How long does it take for Sikaflex 521 to cure?
Respuesta: Sikaflex 521 typically requires 24 to 48 hours to fully cure depending on the ambient temperature and humidity. During this period, it will gain strength and flexibility, becoming ideal for use. It's important not to disturb the sealant during this time, as this can affect its performance. Once cured, it provides a robust seal suitable for various demanding applications. -
Pregunta:
Is Sikaflex 521 suitable for use indoors?
Respuesta: Absolutely! Sikaflex 521 is non-toxic once cured and perfect for indoor applications such as sealing around kitchen or bathroom fixtures. It is also effective for filling gaps and joints in constructions or renovations within homes. With its aesthetic finish and performance, it ensures that your indoor spaces are both functional and visually appealing. -
Pregunta:
What is the shelf life of Sikaflex 521?
Respuesta: Sikaflex 521 has a shelf life of approximately 12 months when stored in a cool and dry place. Keeping the cartridge sealed until you're ready to use it ensures that it maintains its excellent properties. Being aware of the shelf life allows you to maximize the effectiveness of the sealant and plan projects accordingly to avoid unnecessary waste. -
Pregunta:
How do I apply Sikaflex 521 for the best results?
Respuesta: To achieve optimal results with Sikaflex 521, start by preparing the surface by cleaning and drying it thoroughly. Use a caulking gun for a smooth and controlled application. Apply the sealant in a continuous bead, ensuring complete coverage of the joint or gap. Smoothing the surface with a tool after application can enhance aesthetics while ensuring a tightly sealed bond. -
Pregunta:
Where can I buy Sikaflex 521, White, UV Resistant Low Modulus Sealant, 300ml Cartridge?
Respuesta: You can purchase Sikaflex 521, White, UV Resistant Low Modulus Sealant, 300ml Cartridge from Ubuy. Ubuy offers a convenient way to find this high-quality sealant and have it delivered directly to your location in Dominican Republic.
SIKA Joint Sealants Editorial Review
Sikaflex 521, White, UV Resistant Low Modulus Sealant, 300ml Cartridge is an outstanding product for various sealing applications, praised for its strong adhesion and waterproof properties. Users highlight its effectiveness in sealing around solar panels and yachts, providing lasting protection even under challenging conditions. The product is compatible with a wide range of materials, including wood and metals, making it versatile for numerous projects. A note of caution from users suggests ensuring a caulk gun is on hand for easier application, as it can be tricky to use without one. Overall, this sealant stands out for its reliability and performance.
Customer Reviews & Ratings
19 valoraciones de los clientes
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5 estrella
55%
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4 estrella
9%
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3 estrella
7%
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2 estrella
14%
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1 estrella
15%
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ventajas
- Excellent adhesion on various surfaces.
- Waterproof and UV resistant features.
- Ideal for sealing solar panels and RVs.
- High compatibility with multiple materials.
- consistent performance under significant rainfall.
Contras
- Best before date awareness is essential.
Platform Trust & Buyer Confidence
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Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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10 September 2026 · via Trustpilot
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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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“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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DOP 2343
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características y beneficios
- Multi-purpose, UV resistant sealant for diverse applications.
- Forms a durable and elastic bond on exposure to moisture.
- Solvent and isocyanate free, ensuring safety and low odor.
- High electrical resistance and very low VOC content.
- Resistant to aging and weathering, ensuring long-lasting performance.
- Compatible with a wide range of substrates without special pre-treatment.
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