Lippert Components
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5121 ALPHATHANE Self-Leveling Sealant for 5th Wheel RVs, Travel Trailers and Motorhomes
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5121 ALPHATHANE Self-Leveling Sealant for 5th Wheel RVs, Travel Trailers and Motorhomes
Provides a high-strength adhesion to wood, metal, glass and most other RV roof materials.
5121 ALPHATHANE Self-Leveling Sealant for 5th Wheel RVs, Travel Trailers and Motorhomes
Item #: 35036093

5121 ALPHATHANE Self-Leveling Sealant for 5th Wheel RVs, Travel Trailers and Motorhomes

88% of respondents would recommend this to a friend

Item #: 35036093

BSD 33

Price Details

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Order now and get it around Sunday, September 20
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Provides a high-strength adhesion to wood, metal, glass and most other RV roof materials.
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What Stands Out

100% Solids Formula
The Alphathane sealant offers a 100% solids composition, ensuring maximum durability and longevity, making it ideal for various applications without the need for solvents.
Self-Leveling Capability
This sealant's self-leveling feature allows for smooth application on uneven surfaces, effectively filling gaps and providing a seamless finish that enhances aesthetic appeal.
Versatile Use
Perfect for both indoor and outdoor applications, the Lippert sealant adheres well to numerous materials, addressing diverse sealing needs while remaining resilient against harsh weather conditions.

Product Details

Shop 5121 ALPHATHANE Self-Leveling Sealant for 5th Wheel RVs, Travel Trailers and Motorhomes online at a best price in The Bahamas. B08DPPB36P

Who Should Buy?

Suitable For
  • RV Owners

    Ideal for sealing roofs and joints on recreational vehicles to prevent leaks and weather damage.

  • Roofing Professionals

    Perfect for contractors who need a reliable and durable sealant for flat roofs and similar applications.

  • DIY Homeowners

    Great for homeowners tackling home improvement projects that require a robust, easy-to-apply sealant solution.

Not Suitable For
  • Cold Weather Use

    Not suitable for applications in extremely low temperatures, which may affect cure time and adhesion.

Product Description

5121 ALPHATHANE Self-Leveling Sealant for 5th Wheel RVs, Travel Trailers and Motorhomes

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Customer Questions & Answers

  • Question: What is Lippert Components 5121 ALPHATHANE 100% Solids Self-Leveling Sealant used for?

    Answer: Lippert Components 5121 ALPHATHANE is designed primarily for sealing joints and gaps in various surfaces, including recreational vehicles, trailers, and roofs. The 100% solids formulation ensures a durable, long-lasting seal that resists water and moisture, making it perfect for outdoor applications. It effectively prevents leaks and protects against environmental elements, making it ideal for use in areas subject to heavy wear, such as RV roofs or around windows. With its self-leveling properties, it fills gaps seamlessly, providing not just protection but also a smooth finish.
  • Question: How does the self-leveling feature of this sealant work?

    Answer: The self-leveling feature of Lippert Components ALPHATHANE sealant allows it to flow and spread evenly across the surface after application. This means that once dispensed, the sealant adjusts itself to create a flat, uniform layer without any need for manual smoothing. This quality is particularly beneficial when sealing uneven surfaces or joints, ensuring that every nook and cranny is filled without unsightly bumps or ridges. As a result, it provides an aesthetically pleasing finish while enhancing durability.
  • Question: Is the Lippert Components ALPHATHANE Sealant paintable?

    Answer: Yes, Lippert Components 5121 ALPHATHANE sealant is paintable, allowing you to match the sealant to the color of your surfaces for a cohesive look. Once cured, the sealant can accept most types of paint, helping you maintain aesthetic appeal while ensuring that areas are effectively sealed against moisture. This versatility is especially useful for those looking to maintain a professional finish on their projects, whether it be on an RV, boat, or home area.
  • Question: What surfaces can this sealant be applied to?

    Answer: The ALPHATHANE sealant adheres well to a variety of surfaces, including fiberglass, metal, wood, and certain plastics. This makes it ideal for numerous applications, from RV and trailer repairs to household projects. Its strong adhesion properties ensure that it remains effective over time, even under varying weather conditions. It is particularly beneficial for areas that may see water exposure, such as vents or seams on RV roofs, as it creates an airtight, watertight seal.
  • Question: How long does it take for the ALPHATHANE sealant to cure?

    Answer: The curing time for Lippert Components ALPHATHANE sealant typically ranges from 24 to 48 hours, depending on the temperature and humidity levels. It is essential to allow sufficient time for the sealant to fully cure before exposing it to moisture or stress, which ensures maximum effectiveness. Users can plan their projects accordingly, allowing for this curing time to ensure that they achieve the best possible results.
  • Question: Can this sealant be used in extreme weather conditions?

    Answer: Yes, Lippert Components ALPHATHANE sealant is designed to withstand extreme weather conditions, including heat, cold, rain, and UV exposure. This resilience makes it particularly suitable for outdoor applications, such as sealing RV roofs or trailer seams that will be exposed to the elements. It helps protect your investments from potential damage caused by leaks or environmental wear and tear.
  • Question: What is the size of the tube, and how much area does it cover?

    Answer: Lippert Components 5121 ALPHATHANE sealant comes in a 9.8 oz. tube. The coverage area can vary based on the application method and the size of the gap or joint being sealed. Typically, one tube covers approximately 20-30 linear feet for a 1/4 inch bead, making it suitable for various projects. Users should plan accordingly based on the specific needs of their task to ensure that they have enough product on hand.
  • Question: Is this sealant safe for use around pets or plants?

    Answer: Yes, once fully cured, the Lippert Components ALPHATHANE sealant is generally considered safe for use around pets and plants. It does not emit harmful chemicals that could affect your environment. However, during application, it is best to keep pets and plants away until the sealant has cured completely, ensuring that they are not exposed to any vapors or wet sealant.
  • Question: How do you apply Lippert Components ALPHATHANE sealant?

    Answer: To apply Lippert Components ALPHATHANE sealant, start by ensuring that the surface is clean, dry, and free from debris. Cut the tip of the tube to the desired bead size and use a caulking gun to dispense the sealant along the seams or gaps. For optimal results, apply in a steady motion, allowing the self-leveling properties to do their work. Smooth out if necessary, and ensure there is adequate time for curing. This method is straightforward, making it accessible for DIY enthusiasts.
  • Question: Where can I buy Lippert Components 5121 ALPHATHANE 100% Solids Self-Leveling Sealant in The Bahamas?

    Answer: You can purchase Lippert Components 5121 ALPHATHANE 100% Solids Self-Leveling Sealant from Ubuy. They offer it online, ensuring that you can easily access this reliable product and have it delivered to your specified address within The Bahamas. Ubuy provides a simple shopping experience and tracks various necessary equipment and supplies, making it convenient for anyone looking to buy this sealant.

Lippert Components Sealants Editorial Review

The Lippert Components N512103TLCI 5121 ALPHATHANE Self-Leveling Sealant has received a mix of positive feedback and some Constructive criticism from users, particularly among RV owners. Many customers praise its effectiveness in sealing roofs, appreciating that it levels out nicely once applied, making it a reliable choice for RV maintenance. One user highlighted their positive experience after purchasing it from a private RV repair guy, further endorsing the product as a must-have for RV roof repairs. The sealant is noted for its sturdy packaging, particularly the hard plastic tube, which some users found preferable to cardboard tubes common with other sealants. They appreciated its ability to maintain shape between uses. However, some users faced challenges during application, mentioning that it was hard to apply without nozzles and suggesting that improved packaging information about nozzles would enhance the buying experience. A few users compared it to competitors, particularly noting that they preferred Dicor brand for its superior self-leveling properties, as they experienced inConsistencies with Lippert’s product. Overall, the reception of the Lippert Components sealant showcases its reliability and effectiveness for RV repair, though Prospective buyers might want to Consider nozzle availability and alternative brands for optimal leveling performance. **

Customer Reviews & Ratings

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Pros

  • Effective sealing properties, especially for RV roofs
  • Self-leveling capabilities for smooth application
  • Durable hard plastic tube packaging

Cons

  • Application can be challenging without nozzles

Platform Trust & Buyer Confidence

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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.”

10 September 2026 · via Trustpilot
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Opaleye
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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.
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BSD 33

Order now and get it around Sunday, September 20

QTY:

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Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Self-leveling sealant specifically designed for RVs.
  • High-strength adhesion for various materials including wood, metal, and glass.
  • Durable and reliable, withstanding rigorous travel conditions.
  • Available in multiple colors: Beige, Gray, Almond, and White.
  • Perfect for sealing flat, horizontal surfaces like rooftops.
  • Part of Alpha Systems' complete line of RV maintenance products.

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