Choosing the proper sealant is crucial for maintaining and repairing RV roofs. Two leading products in the market are Sikaflex 715 and Dicor.
Each offers unique features and benefits, making the choice less about which is better and more about which is best suited for your needs.
This article dives into the specifics of each product, comparing and contrasting them to help RV owners make an informed decision.
What is Sikaflex 715?
Sikaflex 715 is a sealant designed for sealing and repairing RV roofs, particularly those made from TPO (Thermoplastic Polyolefin). This product stands out for its flexibility and durability.
It’s a one-component, moisture-cured sealant that cures when exposed to moisture in the air, forming a durable and flexible layer resistant to weathering and UV rays.
Sikaflex 715 is also noted for its ability to adhere to various materials without a primer, making it a versatile choice for different RV roofing materials.
Additionally, its ease of application- no mixing required- makes it user-friendly for professionals and DIY enthusiasts.
What is Dicor?
Dicor is another popular choice for sealing RV roofs, particularly EPDM (Ethylene Propylene Diene Monomer) rubber roofs. This product is a lap sealant designed to create a secure, waterproof seal at the edges and joints of roofing materials.
Dicor is known for its excellent adhesion to most roofing materials and ability to expand and contract with the roof, ensuring a long-lasting seal.
UV stabilization prevents it from breaking down or degrading under sun exposure. Dicor is also easy to apply, requiring no mixing, and is available in various colors to match different RV roofs.
How are they different?
Chemical Composition and Application
Sikaflex 715 is a moisture-cured sealant ideal for TPO roofs, while Dicor is a lap sealant best suited for EPDM rubber roofs.
Their chemical compositions are tailored to their specific applications, with Sikaflex 715 offering excellent flexibility and Dicor providing superior sealing at joints and edges.
Adhesion and Compatibility
Sikaflex 715 adheres well to a variety of materials without needing a primer. In contrast, Dicor, while offering excellent adhesion, may require a primer on some surfaces to ensure optimal performance.
Flexibility and Durability
Sikaflex 715 is known for its superior flexibility, making it more suitable for surfaces that experience significant expansion and contraction.
Dicor, though flexible, is specifically designed to create strong seals at joints and edges, where flexibility is less concerned than overall sealing ability.
UV Resistance
Both products are UV resistant, but Dicor’s UV stabilization is particularly noted for its effectiveness in protecting against sun damage.
How are they similar?
Purpose and Function
Sikaflex 715 and Dicor are designed for RV roof repair and maintenance, focusing on creating durable, weatherproof seals.
Ease of Use
Each product is user-friendly, requires no mixing, and is easy to apply, making them suitable for professional and DIY projects.
Weather Resistance
Both sealants offer excellent resistance to weathering, including rain, snow, and temperature variations, ensuring long-lasting performance.
Curing Process
Both Sikaflex 715 and Dicor cure upon exposure to air moisture, forming a solid, durable seal.
What’s better about Sikaflex 715?
Sikaflex 715 excels in its flexibility, making it ideal for roofs that undergo significant expansion and contraction.
Its ability to adhere to a wide range of materials without a primer simplifies the application process and broadens its usability across various RV roof types.
The product’s durability and resistance to weathering and UV rays ensure a long-lasting seal that can withstand harsh environmental conditions.
Its moisture-cured nature ensures a robust sealing even in varying humidity conditions, making it a reliable choice for various climates.
What’s better about Dicor?
Dicor stands out for its exceptional adhesion, especially on EPDM rubber roofs, and its effectiveness in sealing joints and edges, particularly prone to leaks.
Dicor’s UV stabilization is noteworthy. It offers enhanced protection against sun damage, which is crucial for RVs exposed to prolonged sunlight. Its range of colors allows for a more aesthetic match with different RV roofs, adding to the visual appeal.
Dicor’s specific formulation makes it an excellent choice for long-term maintenance. It provides a secure and durable seal that effectively withstands the rigors of the road.
Who should get Sikaflex 715 (and why)?
Sikaflex 715 is ideal for RV owners with TPO roofs or those looking for a highly flexible sealant to withstand significant thermal movement.
Its primer-less application makes it an excellent option for DIY enthusiasts or professionals looking for a quick and efficient solution.
Those in regions with variable weather conditions will also benefit from its robust weather-resistant properties, ensuring a reliable seal in diverse climates.
Who should get Dicor (and why)?
Dicor is best suited for RV owners with EPDM rubber roofs or requiring a specialized lap sealant for edges and joints.
Its superior adhesion and UV resistance make it ideal for long-term maintenance of RV roofs, particularly in areas with high sun exposure.
The color options available with Dicor also make it a preferred choice for those who prioritize the aesthetic aspect of their RV roof maintenance.