Sikaflex 1a Flexible Polyurethane Sealant for Joints and Surfaces

Sikaflex 1a is a premium grade, high performance polyurethane sealant designed for both vertical and horizontal surfaces. This one-component, moisture-cured sealant offers exceptional adhesion to most construction materials without the need for a primer, making it a versatile choice for various applications.

One of the standout features of Sikaflex 1a is its high elasticity. It cures to a tough, durable, and flexible consistency that can accommodate +/- 35% movement. This means it can handle the natural expansion and contraction of building materials, ensuring long-lasting performance in any environment.

With Sikaflex 1a, you get great coverage for all types of joints. It is specifically designed for applications where the maximum depth of sealant will not exceed 1/2 in. This makes it ideal for small joints and fillets, as well as for use around windows, door frames, reglets, and flashing. Its versatility extends to common roofing detail applications and many construction adhesive needs.

Another impressive aspect of Sikaflex 1a is its resistance to aging and weathering. This high performance sealant is not only durable but also jet fuel resistant, allowing it to be used in submerged conditions such as canal and reservoir joints. This makes it a reliable choice for both residential and commercial projects.

Tested and approved, Sikaflex 1a meets Federal Specification TT-S-00230C, Type II, Class A, and complies with ASTM C-920, Type S, Grade NS, Class 35, making it suitable for a wide range of applications. It also adheres to the Canadian standard CAN/CGSB 19. 13-M87, ensuring its quality and reliability.

In summary, Sikaflex 1a is an excellent choice for anyone in need of a flexible sealant that can withstand the test of time. Its combination of high performance, elasticity, and resistance to various environmental factors makes it a top pick for construction professionals and DIY enthusiasts alike.